- Khojiev Shokhrukh Toshpo’latovich received his Master’s degree in the department of “Metallurgy” of Tashkent State Te... moreKhojiev Shokhrukh Toshpo’latovich received his Master’s degree in the department of “Metallurgy” of Tashkent State Technical University in the republic of Uzbekistan. At the moment he is working as senior teacher and researcher of this department. His research works about development of recycling of copper slags with local reducing agents and improvement of integrated technology of recycling metallurgical wastes together.edit
This study explores the thermodynamic feasibility of selectively oxidizing iron contained in chalcopyrite mineral while preventing the oxidation of copper sulphide, with the ultimate goal of enhancing the copper concentration in... more
This study explores the thermodynamic feasibility of selectively oxidizing iron contained in chalcopyrite mineral while preventing the oxidation of copper sulphide, with the ultimate goal of enhancing the copper concentration in the sulphide concentrate. A redox reaction in the solid phases between chalcopyrite and copper (I) oxide was constructed and subjected to thermodynamic analysis. The research identifies a crucial temperature range of 498-598 K (225-325 °C) as the most
favourable for the redox reaction. The equilibrium constants at the selected optimal temperatures, 1.152 for chalcopyrite and 1.137 for copper (I) oxide, indicate that the redox reaction adheres to the expected
kinetic behaviour. The significance of these findings lies in the potential to selectively oxidize iron in chalcopyrite, allowing for its subsequent removal through magnetic separation. This strategic approach promises an increase in the copper percentage within the sulphide concentrate, thereby enhancing the efficiency and economic viability of copper extraction processes. The study not only provides valuable insights into the thermodynamics of the chalcopyrite-copper (I) oxide redox reaction but also establishes a practical temperature range for its optimal execution. The successful implementation of this approach holds considerable promise for the mining and metallurgical industries, offering a pathway to improve copper recovery processes and addressing the economic challenges associated with traditional extraction methods.
favourable for the redox reaction. The equilibrium constants at the selected optimal temperatures, 1.152 for chalcopyrite and 1.137 for copper (I) oxide, indicate that the redox reaction adheres to the expected
kinetic behaviour. The significance of these findings lies in the potential to selectively oxidize iron in chalcopyrite, allowing for its subsequent removal through magnetic separation. This strategic approach promises an increase in the copper percentage within the sulphide concentrate, thereby enhancing the efficiency and economic viability of copper extraction processes. The study not only provides valuable insights into the thermodynamics of the chalcopyrite-copper (I) oxide redox reaction but also establishes a practical temperature range for its optimal execution. The successful implementation of this approach holds considerable promise for the mining and metallurgical industries, offering a pathway to improve copper recovery processes and addressing the economic challenges associated with traditional extraction methods.
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The present study employs the zinc cake leaching method as a means to enhance the extraction of zinc from insoluble tosoluble forms. Citric acid, identified as a water-soluble local reducing agent, facilitates this process, with a... more
The present study employs the zinc cake leaching method as a means to enhance the extraction of zinc from insoluble tosoluble forms. Citric acid, identified as a water-soluble local reducing agent, facilitates this process, with a sulfuric acid solution serving as the solvent. Optimal results were obtained when the concentration ratio of sulfuric acid to citric acid was maintained at 28.7:4, resulting in an 86% dissolution rate of zinc cake. This technological advancement signifies a more efficient hydrometallurgical processing method for zinc cakes. Thermodynamic analysis elucidated that the limiting stage in the chemical reactions, involving zinc ferrite and a mixture of citric and sulfuric acids, is the mutual chemical interaction between zinc ferrite and citric acid. Complete reaction occurred at an optimal temperature of 338 K (65 °C). A kinetic study revealed that equilibrium constants for dissolving reactions of zinc and iron oxides in sulfuric acid exhibit high values, undergoing changes due to the recovery of zinc ferrite at the specified temperature. Quantitative analyses of the solution and secondary residual cake were conducted to ascertain the solubility of the zinc cake. To enhance the efficiency of hydrometallurgical processing at the optimal temperature, the impact of intensive mixing of the solution was investigated. Consequently, at 65 °C, the maximum average melting rate of zinc cake, reaching 90.3%, was achieved with a solution mixing speed of 55-65 times per minute. The proposed improvement method, if implemented on an industrial scale, holds the potential to significantly augment zinc production productivity.
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The thermodynamics of reducing trivalent iron in zinc ferrite to divalent iron using pyrite as a reducing agent were investigated. This study aimed to elucidate the feasibility of the reduction process and assess the underlying... more
The thermodynamics of reducing trivalent iron in zinc ferrite to divalent iron using pyrite as a reducing agent were investigated. This study aimed to elucidate the feasibility of the reduction process and assess the underlying thermodynamic principles. The Gibbs free energy change for the reduction reaction was calculated using thermodynamic data and equilibrium constants at various temperatures. The results indicate that the reduction of trivalent iron in zinc ferrite to divalent iron using pyrite is thermodynamically favourable under certain conditions. Factors such as temperature, pressure, and initial reactant concentrations play crucial roles in influencing the thermodynamic feasibility. The findings of this study provide valuable insights into the potential applications of pyrite as a reducing agent for transforming metal oxides in various industrial processes.
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In the paper, since the main component containing zinc in zinc cake is zinc ferrite, the research work studied the thermodynamic aspects of the process to reduce ferric iron in zinc ferrite to ferrous state under the influence of citric... more
In the paper, since the main component containing zinc in zinc cake is zinc ferrite, the research work studied the thermodynamic aspects of the process to reduce ferric iron in zinc ferrite to ferrous state under the influence of citric acid. Based on the results of thermodynamic analysis, it was established that the limiting stage among the chemical reactions occurring in the system of zinc ferrite and a mixture of citric and sulfuric acids is the stage of mutual chemical interaction of zinc ferrite and citric acid. Accordingly, the optimal temperature required for the complete reaction of zinc ferrite with citric acid was 338 K (65 °C). By studying the kinetics of the process, it has been proven that the equilibrium constants of the reactions of dissolution of zinc and iron oxides in sulfuric acid, transformed into individual forms due to the reduction of zinc ferrite at the same temperature, have high values.
Research Interests: Materials Engineering, Chemical Engineering, Materials Science, Chemistry, Inorganic Chemistry, and 13 moreOrganic Chemistry, Physical Chemistry, Hydrometallurgy, Metallurgy, Hydrochemistry, Composite Materials, Materials Science and Engineering, Non-ferrous metals, ZnO (Zinc Oxide), Metallurgical and Materials Engineering, Ferrous Metallurgy, Pyrometallurgy, and Oxidation-Reduction
Deoxidation is one of the important technological operations of the steel production process, the main tasks of which are to reduce the concentration of oxygen dissolved in the melt and the most complete removal of the resulting... more
Deoxidation is one of the important technological operations of the steel production process, the main tasks of which are to reduce the concentration of oxygen dissolved in the melt and the most complete removal of the resulting deoxidation products from the melt. In metallurgical practice, more and more often, when deoxidizing steel, the so-called. complex deoxidizers, which are alloys of several elements with a high affinity for oxygen, allowing deoxidizing steel deeper than traditional ferroalloys and obtaining a more favorable metal structure with high mechanical properties by modifying non-metallic inclusions. The essence of complex deoxidation is to increase the reactivity of elements due to more favorable energy conditions, under which the reactions of interaction of elements with oxygen dissolved in liquid steel proceed more fully.
Research Interests: Metallurgical Engineering, Chemical Engineering, Materials Science, Chemistry, Analytical Chemistry, and 11 moreInorganic Chemistry, Organic Chemistry, Composite Materials and Structures, Metallurgy, Mineral Processing, Environmental Chemistry, Materials Science and Engineering, Metallurgy and Materials Engineering, Welding Metallurgy, Metallurgical and Materials Engineering, and Pyrometallurgy
The article addresses the issues of metallurgical processing of iron-bearing ores of the republic. For the preparation of enriched minerals for metallurgical processing, agglomeration, rolling, etc., can be used. The dissertation analyses... more
The article addresses the issues of metallurgical processing of iron-bearing ores of the republic. For the preparation of enriched minerals for metallurgical processing, agglomeration, rolling, etc., can be used. The dissertation analyses various methods of preparing iron-containing raw materials for metallurgical processing in order to choose an economically feasible method. The possibility of producing metallized concentrates from iron-containing ores with low iron content is considered in order to prepare them for metallurgical processing. It has been shown that the efficiency of the process of producing metallized concentrates is significantly influenced by the following factors: ore composition, physical and chemical properties of ore, the possibility of producing pellets, the type and consumption of reducing agent, etc.
Research Interests: Chemical Engineering, Materials Science, Chemistry, Chemical Education, Composite Materials and Structures, and 9 moreMetallurgy, Titanium, Mineral Processing, Metallurgy and Materials Engineering, Steel Making, Chemical Reaction Engineering, Mineral exploration, Welding Metallurgy, and Mineral Resources
This article deals with removing oxygen at the final stage of steel smelting in arc steel-making furnaces. It is shown that the remaining oxygen during crystallization forms floccules and significantly reduces the quality of the finished... more
This article deals with removing oxygen at the final stage of steel smelting in arc steel-making furnaces. It is shown that the remaining oxygen during crystallization forms floccules and significantly reduces the quality of the finished metal. During the subsequent metal processing by pressure on these floccules, the metal is torn apart and makes it impossible to obtain a steel sheet. Deoxidation is performed with expensive ferroalloys, and their consumption must be minimized. To achieve economic efficiency, it has been proposed to use recycled aluminum slag as a relatively inexpensive local deoxidizer. To optimize the deoxidizer consumption, a rapid analysis method was developed using the electromotive force (EMF) determination to determine the oxygen activity in liquid steel. As a result of the study, the composition, structure, and technological parameters of deoxidized steel were determined. The use of this technology in production will make it possible to obtain high-quality steel and improve environmental protection through secondary aluminum waste.
Research Interests: Metallurgical Engineering, Chemical Engineering, Materials Science, Chemistry, Analytical Chemistry, and 15 moreChemical Education, Metallurgy, Waste recycling, Mineral Processing, Environmental Sustainability, Steel Structure, Solid Waste Management, Materials Science and Engineering, Metallurgy and Materials Engineering, Steel Making, Welding Metallurgy, Stainless Steel, Mineral Resources, Cast Iron, and Metallurgical and Materials Engineering
In this article deals with optical and radiometric methods of observing celestial bodies to determine the coordinates of points and their change. Observations of stars are analyzed astronomical to determine the non-polar change in the... more
In this article deals with optical and radiometric methods of observing celestial bodies to determine the coordinates of points and their change. Observations of stars are analyzed astronomical to determine the non-polar change in the axis of rotation of the Earth. A technique for determining the zero point of the reference coordinate system based on positional observations of extragalactic objects is described. The use of geodynamic polygons in geological-tectonic regions is noted in this work. Special attention is paid to GPS measurements according to the international program "CATS". In order to study deformation processes, it is proposed to carry out systematic GNSS measurements at the Tashkent geodynamic polygon. For metrological support of navigation measurements, it is proposed to create a Central Asian GNSS polygon.
Research Interests: Environmental Engineering, Chemical Engineering, Materials Science, Chemistry, Composite Materials and Structures, and 8 moreRecycling, Metallurgy, Environmental Chemistry, Environmental Sustainability, Solid Waste Management, Metallurgy and Materials Engineering, Welding Metallurgy, and Dispose of Waste
Maqolada oksidlangan mis birikmalariga suyuq organik moddalar bilan ishlov berib, toza metall olish jarayonining termodinamik imkoniyatlari tadqiq qilingan. Tadqiqot obyekti sifatida mis (II)-oksidi va etil spirti tanlangan bo‘lib, ular... more
Maqolada oksidlangan mis birikmalariga suyuq organik moddalar bilan ishlov berib, toza metall olish jarayonining termodinamik imkoniyatlari tadqiq qilingan. Tadqiqot obyekti sifatida mis (II)-oksidi va etil spirti tanlangan bo‘lib, ular orasidagi boradigan oksidlanish-qaytarilish reaksiyalarida sodir bo‘ladigan fizika-kimyoviy o‘zgarishlar tahlil qilingan. Reaksion sistemada harorat bilan kimyoviy reaksiyaning Gibbs energiyasi hamda muvozanat doimiyliklari orasidagi bog‘liqlik qonuniyatlari aniqlanib, jarayon mohiyatini aniqroq yoritib berish maqsadida turli grafiklar ko‘rinishida tasvirlangan. Jarayonning normal oqib o‘tishi uchun optimal sharoitlari aniqlangan. Reaksiya natijasida olingan toza mis kukunidan iborat nanozarachalarni qo‘llash bo‘yicha tavsiyalar berilgan.
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Numerous non-ferrous metallurgy wastes are known (dumps, slags, sludge, dust, clinker, etc.), which, from an economic as well as an environmental point of view, are beneficial and must be disposed of. This book provides an analysis of... more
Numerous non-ferrous metallurgy wastes are known (dumps, slags, sludge, dust, clinker, etc.), which, from an economic as well as an environmental point of view, are beneficial and must be disposed of. This book provides an analysis of known methods and proposes new solutions for the autonomous and joint processing of zinc production cake and molybdenum cake of the leaching plant of OJSC Almalyk MMC, which are technogenic deposits of unique polymetallic raw materials, which are practically not used to date. The relevance and novelty of the problem of processing such deposits in the steady growth of their volumes and the lack of effective processing technology. These deposits differ from natural mineral raw materials in that they are a product of technological processing and are composed of new mineralogical formations, more or less persistent and difficult to process. Operating enterprises and technologies often turn out to be unsuitable for waste processing and require reconstruction, modernization or re-equipment based on new progressive technological solutions. The solutions proposed by the authors make it possible to selectively extract copper, zinc, iron, gold and silver from the specified raw materials and define the technology as environmental protection and diversification.
Research Interests: Chemical Engineering, Materials Science, Chemistry, Analytical Chemistry, Inorganic Chemistry, and 15 moreRecycling, Hydrometallurgy, Metallurgy, Waste recycling, Mineral Processing, Materials Science and Engineering, Metallurgy and Materials Engineering, Chemical Reaction Engineering, Aluminium Alloys, ZnO (Zinc Oxide), Welding Metallurgy, Termodinamica, General Chemistry, Pyrometallurgy, and Chemical Engineering Technology
Waste, garbage is a mixture of substances, objects and their parts that have lost their consumer properties in the process use and intended for disposal. The purpose of the article is note the main current concepts of the problem of... more
Waste, garbage is a mixture of substances, objects and their parts that have lost their consumer properties in the process use and intended for disposal. The purpose of the article is note the main current concepts of the problem of distribution, disposal of plastic waste and propose its promising solutions. In Uzbekistan, the number of solid utilities waste is 63 million tons per year (about 450 kg per person), up to 25 % of them can be plastic. Plastics are organic materials based on synthetic or natural polymers consisting of monomer units, combined into long macromolecules. The most common plastics are polyvinyl chloride, polypropylene, polycarbonate, polystyrene, polyethylene low and high pressure, etc. To ensure utilization disposable items, a labeling system has been developed, identification codes. Most types of plastics usually well recyclable and recyclable. In Europe is recyclable up to 50 % of waste, and in Russia - no more than 4 %. The article discusses the problems of decontamination and recycling of waste polymeric materials, which are common among household and technical waste and are difficult to dispose of and emit toxic substances into the environment. In particular, the composition, structure and properties of waste plastic bags with a thickness of up to 40 microns, which are increasing day by day, have been studied and a rational method of their use has been proposed. The results of research and studies have shown that the waste of unsuitable polyethylene bags contains a source of fuel necessary for the metallurgical industry - hydrocarbons, which can be used as an alternative to traditional fuels used in metallurgical furnaces. can be used as a source of heat energy. It also provides useful information on the theoretical foundations of processes that can help increase the economic efficiency of metallurgical plants. Also, the main technological parameters of processing of polyethylene bag waste and their incineration in metallurgical furnaces were identified. The cost-effectiveness of using plastic waste as a fuel in metallurgical processes has been analyzed.
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Maqolada mis ishlab chiqarishda kam oltingugurtli sulfidli mis boyitmalarini energiya-tejamkor texnologiyasini takomillashtirish yo‘llari ko‘rib chiqilgan. Mazkur tadqiqot rangli metallurgiya sohasiga tegishli bo‘lib, xususan,... more
Maqolada mis ishlab chiqarishda kam oltingugurtli sulfidli mis boyitmalarini energiya-tejamkor texnologiyasini takomillashtirish yo‘llari ko‘rib chiqilgan. Mazkur tadqiqot rangli metallurgiya sohasiga tegishli bo‘lib, xususan, Kislorod-mash’alali pechi va Vanyukov pechlarida qayta ishlanadigan mis boyitmalarining issiqlik berish qobiliyatini oshirishda qo‘llaniladi. Bunda boyitmaning issiqlik berish qobiliyatini oshirish maqsadida selektiv flotatsiya jarayonidan yo‘ldosh birikmalar sifatida chiqqan piritli boyitmalardan foydalanish taklif etilgan. Kalorimetrik usulda toza pirit mineralining issiqlik berish xususiyati o‘rganildi. Pirit yonganida hosil bo‘ladigan issiqlik miqdori tabiiy gazning issiqlik berish xususiyatlari bilan taqqoslandi. Qilingan texnik-iqtisodiy hisoblar natijasida piritli boyitmani sanoat miqyosida qo‘llash iqtisodiy samarali ekanligi aniqlandi.
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The article discusses the problems of studying the properties of copper slag and the factors affecting them. The laws of change of slag properties at different temperatures are shown. Accordingly, the main properties of copper slags are... more
The article discusses the problems of studying the properties of copper slag and the factors affecting them. The laws of change of slag properties at different temperatures are shown. Accordingly, the main properties of copper slags are their density, viscosity and surface tension. Based on the properties of the slag, they show the laws of dispersion of matte droplets. The laws of leakage of matte droplets from a layer of high-temperature liquid slag and their mathematical expressions are given.
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The purpose of this study is to study the use of secondary energy resources (SER) as a tool to reduce the energy component of production costs. The paper discusses ways to reduce energy costs, one of which is the use of SER. The... more
The purpose of this study is to study the use of secondary energy resources (SER) as a tool to reduce the energy component of production costs. The paper discusses ways to reduce energy costs, one of which is the use of SER. The definition of SER has been clarified sources and directions of using SER have been identified. A technology is proposed for generating electricity from secondary energy resources of metallurgy. The method of generating electricity from the secondary energy resources of metallurgy consists in the use of elemental sulfur and sulfide materials in the process of converting thermal energy into electricity.
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Gold production in the world by 2029 will grow to 133 million ounces (4136 tons) from 106 million ounces projected at the end of 2020, according to the forecast of Fitch Solutions. According to the report, the annual production growth in... more
Gold production in the world by 2029 will grow to 133 million ounces (4136 tons) from 106 million ounces projected at the end of 2020, according to the forecast of Fitch Solutions. According to the report, the annual production growth in this period will be about 2.5%, against 1.2% in 2016-2019. The main growth will come from Russia. Gold production will grow to 15.5 mln ounce (482.1 tonnes) in 2029 from 11.3 mln ounce (351.5 tonnes) in 2020. This translates into an average annual growth rate of 3.7% during 2020-2029. As a result, Russia will overtake China as the largest gold producer, accounting for 11.6% of global production by 2029, up from 10.6% in 2020. On the other hand, China's gold production is expected to remain roughly flat over the next 10 years with a CAGR of 0.2%, a marked slowdown from the 3.1% CAGR over the previous decade. Fitch's review says this is the result of stricter environmental regulations. At the same time, large Chinese firms will increase investment in foreign gold projects, as the growth in demand for gold in the country far exceeds the growth in production. Australia will see moderate
production growth in the coming years, supported by a strong portfolio of projects, rising gold prices and competitive operating costs. Continental production is projected to grow from 11.7 mln ounce in 2020 to 14.2 mln ounce by 2029, averaging 2.2% annual growth.
production growth in the coming years, supported by a strong portfolio of projects, rising gold prices and competitive operating costs. Continental production is projected to grow from 11.7 mln ounce in 2020 to 14.2 mln ounce by 2029, averaging 2.2% annual growth.
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Almalyk Mining and Metallurgical Plant plans to increase copper production to 400 thousand tons by 2029. Almalyk Mining and Metallurgical Combine (AGMK) plans to increase copper production to 400 thousand tons in 2020-2028, follows from... more
Almalyk Mining and Metallurgical Plant plans to increase copper production to 400 thousand tons by 2029. Almalyk Mining and Metallurgical Combine (AGMK) plans to increase copper production to 400 thousand tons in 2020-2028, follows from the decree of the President of Uzbekistan Shavkat Mirziyoyev of May 26. According to the document, the project for expanding the production of non-ferrous metals at AGMK is divided into two stages. In 2020-2025, the plant plans to build an open pit at the Yoshlik-I deposit, as well as a new copper-processing plant (MOF) with a processing capacity of 60 million tons of ore per year. According to the calculations of the plant, it is planned to build a factory of such capacity for the first time in the CIS. For its implementation at AGMK, similar productions were studied at copper quarries in Chile and Peru. As Gazeta.uz was informed at the plant, "the uniqueness of the new factory will be in the use of a rational scheme for the enrichment of minerals, which, among other things, will increase the production of molybdenum and gold". The resolution approved the proposal of the AMMC to attract the Russian Renaissance Heavy Industries (a subsidiary of the Turkish Ronesans Holding) for the construction of the MOF. Two contracts will be signed with the company-for the execution of engineering works and design until the end of 2020, as well as for the supply of equipment on a turnkey basis. The implementation of the first stage will make it possible to increase the output of copper at the plant to 290 thousand tons, gold-up to 38 tons, silver-up to 203 tons. In February of this year, during the visit of Shavkat Mirziyoyev to Turkey with Ronesans Holding, agreements were reached on the implementation of projects in metallurgy, medicine and real estate in Uzbekistan worth about $ 8 billion. In particular, the modernization of the AMMC provides for the attraction of funds for $ 4.1 billion. The second stage of the project (2022-2028) involves the expansion of the Yoshlik-I open pit capacity and the construction of another MPF, already the fourth at the AGMK, to process 50 million tons of ore per year. This will increase the production of cathode copper-up to 400 thousand tons per year, gold-up to 50 tons, silver-up to 270 tons.
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Despite the fact that aluminum is the most widespread metal on our planet, it cannot be found in its pure form on Earth. Due to the high chemical activity, aluminum atoms easily form compounds with other substances. In this case, "winged... more
Despite the fact that aluminum is the most widespread metal on our planet, it cannot be found in its pure form on Earth. Due to the high chemical activity, aluminum atoms easily form compounds with other substances. In this case, "winged metal" cannot be obtained by melting ore in a furnace, as happens, for example, with iron. The process of obtaining aluminum is much more complicated and is based on the use of electricity of enormous power. Therefore, aluminum smelters are always built close to large sources of electricity-most often hydroelectric power plants that do not pollute the environment. But first things first. Metal production is divided into three main stages: the extraction of bauxite-an aluminum-containing ore, their processing into alumina-aluminum oxide, and, finally, the production of pure metal using the electrolysis process-the decomposition of aluminum oxide into its constituent parts under the influence of an electric current. From 4-5 tons of bauxite, 2 tons of alumina are obtained, from which 1 ton of aluminum is produced. There are several types of aluminum ores in the world, but bauxite is the main raw material for the production of this metal. It is a rock, consisting mainly of aluminum oxide with an admixture of other minerals. Bauxite is considered good quality if it contains more than 50% aluminum oxide. The world's total proven bauxite reserves are estimated at 18.6 billion tonnes. At the current level of production, this provides the need for aluminum for more than a hundred years. Bauxites can be very different from each other. In structure, they are hard and dense or loose and crumbly. In color-as a rule, brick-red, reddish or brown due to the admixture of iron oxide. With a low iron content, bauxites are white or gray. But sometimes there are ores of yellow, dark green color and even variegated-with blue, red-violet or black veins. About 90% of the world's bauxite reserves are concentrated in the countries of the tropical and subtropical belts-of which 73% are in five countries: Guinea, Brazil, Jamaica, Australia and India. In Guinea, bauxites are the most-5.3 billion tons (28.4%), while they are of high quality, contain a minimum amount of impurities and lie almost on the surface.
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Developed efficient technology of significant copper content in converter slag using inexpensive and non-scarce industrial waste-zinc clinker. The technology is new and makes a certain contribution to the development of science and... more
Developed efficient technology of significant copper content in converter slag using inexpensive and non-scarce industrial waste-zinc clinker. The technology is new and makes a certain contribution to the development of science and technology for the integrated use of raw materials, the creation of low-waste technologies while simultaneously solving the problem of environmental protection. As a research hypothesis, it was established that the greatest influence on the copper content in the converter slag is exerted by the magnetite present in it in significant quantities. Magnetite heterogenizes the melt, increases the viscosity and density of the melt, as a result of which the reduction processes are very difficult. It is assumed that the carbon-thermal reduction of the melt magnetite should contribute to the successful reduction of the copper concentration in industrial waste. The developed technology of a significant reduction in the concentration of copper in the converter slag significantly increases the complexity of the use of raw materials, helps to remove part of the metal from the work in progress, reduces the ballast turnover of metal in the reverberatory furnace-converter cycle and can provide an economic effect of more than 10 million US dollars per year.
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Sources of copper production are ores, their enrichment products-concentrates-and secondary raw materials. The share of secondary raw materials currently accounts for about 40% of the total copper output. Copper ores are almost entirely... more
Sources of copper production are ores, their enrichment products-concentrates-and secondary raw materials. The share of secondary raw materials currently accounts for about 40% of the total copper output. Copper ores are almost entirely polymetallic. Possible natural companions of copper, like other heavy non-ferrous metals, are the elements of the 4th-6th long periods of the Mendeleev's periodic system. Valuable companions of copper in ore raw materials in various combinations can be about 30 elements. The most important of them: zinc, lead, selenium, tellurium, cadmium, nickel, cobalt, gold, silver, sulfur, germanium, rhenium, thallium, indium, molybdenum, iron. In cases where copper-bearing ores contain significant amounts of other satellite metals, commensurate with the copper content, they are called copper-nickel, copper-zinc, copper-lead-zinc, etc. All types of ores are used in copper production: sulfide (solid and disseminated), oxidized, mixed and native. However, the main copper raw material is sulfide phenocrysts, the reserves of which in the subsoil are the largest. 85-90% of all primary copper is currently obtained from sulfide ores.
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The article discusses ways to recycle lead production slag. According to him, lead-producing slag contains heavy non-ferrous metals such as copper, zinc and lead, and it is economically viable to separate these metals from the slag. The... more
The article discusses ways to recycle lead production slag.
According to him, lead-producing slag contains heavy non-ferrous metals such as
copper, zinc and lead, and it is economically viable to separate these metals from the slag. The article proposes a fumigation method for processing slag with such a composition. This means that the processing of this lead-producing slag can save natural resources and expand the source of raw materials. In addition, the
processing of metallurgical slag will improve the ecological condition of the area and restore fertile lands.
According to him, lead-producing slag contains heavy non-ferrous metals such as
copper, zinc and lead, and it is economically viable to separate these metals from the slag. The article proposes a fumigation method for processing slag with such a composition. This means that the processing of this lead-producing slag can save natural resources and expand the source of raw materials. In addition, the
processing of metallurgical slag will improve the ecological condition of the area and restore fertile lands.
Research Interests: Metallurgical Engineering, Chemistry, Inorganic Chemistry, Powder Metallurgy, Metallurgy, and 9 moreExtractive Metallurgy, Metallurgy and Materials Engineering, Ancient Metallurgy, Physical Metallurgy, Welding Metallurgy, METALLURGY AND MATERIALS SCIENCE, Ancient Mining and Metallurgy, Metallurgical and Materials Engineering, and Ancient Iron Metallurgy
В данной работе были рассмотрены варианты восстановления вал шестерни мельницы МШР 2700×3600. Была сконструирована 3D модель в Autodesk Inventor. Выбранный вариант восстановления увеличивает эксплуатационную производительность вал... more
В данной работе были рассмотрены варианты восстановления вал шестерни мельницы МШР 2700×3600. Была сконструирована 3D модель в Autodesk Inventor. Выбранный вариант восстановления увеличивает эксплуатационную производительность вал шестерни в мельницах и позволяет сократить время восстановления работы мельницы. В ходе изучения выбранного варианта был разработан технологический процесс восстановления вала шестерни.
Research Interests: Metallurgical Engineering, Mechanical Engineering, Chemical Engineering, Chemistry, Inorganic Chemistry, and 11 morePowder Metallurgy, Metallurgy, Metallurgy and Materials Engineering, Chemical Reaction Engineering, Copper, Heavy Metal, Mechanical Engineering Design, Welding Metallurgy, Ancient Mining and Metallurgy, Metallurgical and Materials Engineering, and Materials and Metallurgical Engineering
The article considers problems of reduction of magnetite with forming bivalent iron after converting copper mattes in horizontal converters. So, it has been showed what methods of reduction of magnetite until ferrous ions with different... more
The article considers problems of reduction of magnetite with forming bivalent iron after converting copper mattes in horizontal converters. So, it has been showed what methods of reduction of magnetite until ferrous ions with different reducing agents. The magnetite in the slag is reduced with carbonaceous materials or other solid reductants. While the slag is mixed with a water cooled, metal-bladed mechanical stirrer, the reductant is reacted with the slag. As a result of stirring the reductant into the slag, the rate of magnetite reduction is highly accelerated. With the reduction, the copper separates into a copper phase as either immiscible copper, copper sulfide, or a copper-iron-sulfide matte, depending upon the initial composition of the slag.
Research Interests: Materials Engineering, Metallurgical Engineering, Chemical Engineering, Materials Science, Chemistry, and 15 moreInorganic Chemistry, Recycling, Metallurgy, Extractive Metallurgy, Wastewater Treatment, Environmental Chemistry, Environmental Sustainability, Metallurgy and Materials Engineering, Chemical Reaction Engineering, Welding Metallurgy, Metallurgical and Materials Engineering, Chemical Metallurgy, Materials and Metallurgical Engineering, Pyrometallurgy, and Utilization of cementitious industrial waste products (slag, fly ash, silica fume) and natural pozzolans
The main problems of increasing complex-using from raw materials during processing of copper sulfide concentrates have been shown in this article. In implementing this process on an industrial scale, it is recommended for decreasing... more
The main problems of increasing complex-using from raw materials during processing of copper sulfide concentrates have been shown in this article. In implementing this process on an industrial scale, it is recommended for decreasing amount of copper in slag with method of working with different reducing-sulfiding materials. As these components it has been installed what addition different secondary technogenic products of local industrial enterprises which consist of copper and other valuable components for changing physical and chemical properties of slags and lower general losing of copper.
Research Interests: Metallurgical Engineering, Chemistry, Powder Metallurgy, Metallurgy, Extractive Metallurgy, and 9 moreMetallurgy and Materials Engineering, Ancient Metallurgy, Copper, Physical Metallurgy, Welding Metallurgy, Metallurgical and Materials Engineering, Chemical Metallurgy, Chemical Enggineering, and Metallurgical and Material Engineering
The article consists of metallurgical problem about development of technologies decreasing of copper loss with slag and its methods which help to improve this index with automation of process of casting of converter slag. It has been... more
The article consists of metallurgical problem about development of technologies decreasing of copper loss with slag and its methods which help to improve this index with automation of process of casting of converter slag. It has been shown what main factors which negatively impacting to casting process of slag. The objective of this work is to develop an effective processing of copper converting process of copper mattes melting that would establish a control, regulation, distribution of copper and other valuable components between melting products. As results of this scientific research it has been installed what electro-conductivity of slag bonds to concentration of copper into its and it is agree that control this process can decrease of copper loss with converter slags. According to taken results implementing this research on an industrial scale, it will increase the quality and the coefficient of productivity of the copper.
Research Interests: Metallurgical Engineering, Chemical Engineering, Chemistry, Metallurgy, Extractive Metallurgy, and 10 moreMetallurgy and Materials Engineering, Ancient Metallurgy, Copper, Welding Metallurgy, Converting Processes, Metallurgical and Materials Engineering, Chemical Metallurgy, Pyrometallurgy, Utilization of cementitious industrial waste products (slag, fly ash, silica fume) and natural pozzolans, and Copper converting technology development
The article considers metallurgical problems of conditions of reaction materials each other in smelting furnaces. It consists of the thermal treatment of minerals and metallurgical ores and concentrates to bring about physical and... more
The article considers metallurgical problems of conditions of reaction materials each other in smelting furnaces. It consists of the thermal treatment of minerals and metallurgical ores and concentrates to bring about physical and chemical transformations in the materials to enable recovery of valuable metals.
Research Interests: Metallurgical Engineering, Chemical Engineering, Chemistry, Inorganic Chemistry, Powder Metallurgy, and 12 moreMetallurgy, Extractive Metallurgy, Chemical, Metallurgy and Materials Engineering, Chemical Reaction Engineering, Ancient Metallurgy, Chemical Reaction Kinetics, Welding Metallurgy, Metallurgical and Materials Engineering, Chemical Metallurgy, Extractive industries, and Chemical Enggineering
Maqolada oltinning sianli eritmalar chiqindilari bilan isrofini kamaytirishning innovatsion usuli ko‘rib chiqilgan. Bu tadqiqotni o‘tkazish uchun zararli unsurlardan tozalaydigan va oltin saqlovchi rudalardan oltinni tanlab eritish yo‘li... more
Maqolada oltinning sianli eritmalar chiqindilari bilan isrofini kamaytirishning innovatsion usuli ko‘rib chiqilgan. Bu tadqiqotni o‘tkazish uchun zararli unsurlardan tozalaydigan va oltin saqlovchi rudalardan oltinni tanlab eritish yo‘li bilan ajratib olish uchun qulay sharoit hosil qilinishiga yordan beradigan kimyoviy reagentlardan foydalanildi. Olingan natijalar shuni ko‘rsatadiki, bu texnologiyani sanoat miqyosida qo‘llash ishlab chiqarish unumdorligini oshirishga imkon beradi.
Research Interests: Metallurgical Engineering, Chemical Engineering, Chemistry, Analytical Chemistry, Inorganic Chemistry, and 15 moreOrganic Chemistry, Hydrometallurgy, Metallurgy, Leaching, Gold Mineralization, Metallurgy and Materials Engineering, Solvent Extraction, Welding Metallurgy, Metallurgical and Materials Engineering, Gold Exploration, Extractive industries, Gold Extraction, Leaching of Gold Ores, Pyrometallurgy, and Extractive metallurgy of gold
Maqolada xo'jalik chiqindilaridan toza kumushni ajratib olishning innovatsion usuli ko'rib chiqilgan. Bu tadqiqotni o'tkazish uchun har xil kumush saqlagan chiqindilaridan tarkib topgan va foydalanilmaydigan xo'jalik buyumlaridan... more
Maqolada xo'jalik chiqindilaridan toza kumushni ajratib olishning innovatsion usuli ko'rib chiqilgan. Bu tadqiqotni o'tkazish uchun har xil kumush saqlagan chiqindilaridan tarkib topgan va foydalanilmaydigan xo'jalik buyumlaridan foydalanildi. Olingan natijalar shuni ko'rsatadiki, bu texnologiyani kumush metallurgiyasida qo'llash toza kumush ajratib olish unumdorligini oshirishga imkon beradi.
В статье рассмотрен инновационный метод получения чистого металлического серебра из хозяйственных отходов. Для проведения этого исследования использованы различные неиспользуемые серебросодержащие хозяйственные изделия. Полученные результаты показывают, что внедрение данной технологии в металлургии серебра позволит повысить получение чистого серебра из хозяйственных отходов.
The innovation method of extraction of metallic silver from household's wastes has been shown in this article. For making research it has been used from different silver-bearing wastes of invalid household's things. According to taken results implementing this research on metallurgy of silver it will increase the coefficient of productivity of extraction of fresh silver from invalid household's wastes.
В статье рассмотрен инновационный метод получения чистого металлического серебра из хозяйственных отходов. Для проведения этого исследования использованы различные неиспользуемые серебросодержащие хозяйственные изделия. Полученные результаты показывают, что внедрение данной технологии в металлургии серебра позволит повысить получение чистого серебра из хозяйственных отходов.
The innovation method of extraction of metallic silver from household's wastes has been shown in this article. For making research it has been used from different silver-bearing wastes of invalid household's things. According to taken results implementing this research on metallurgy of silver it will increase the coefficient of productivity of extraction of fresh silver from invalid household's wastes.
Research Interests:
Исследование относится к переработке металлсодержащих отходов металлургического производства с использованием отходов вторичной переплавки алюминиевых материалов. Процесс осуществляется в шлаковой ковш при 1250 о С с получением бедного... more
Исследование относится к переработке металлсодержащих отходов металлургического производства с использованием отходов вторичной переплавки алюминиевых материалов. Процесс осуществляется в шлаковой ковш при 1250 о С с получением бедного штейна и шлака. Это исследование позволит повысить интенсивность протекания процессов возгонки летучих металлов и восстановления железа и меди, повысить степень утилизации отходов металлургического производства. Ключевые слова: отходы металлургического производства, пирометаллургия, рециклинг, обеднение шлака.
Annotation. The study relates to the processing of metal-containing wastes of metallurgical production using wastes of aluminum producing plant. The process is carried out into the metallurgical ladle during 1250 о С with recovering depleted matte and slag. This study will increase the intensity of the processes of sublimation of flying metals and reduction of iron and copper, increase the degree of utilization of metallurgical waste.
Annotatsiya. Mazkur tadqiqot tarkibida metall saqlagan chiqindilarni alyuminiyli xomashyolarni ikkilamchi eritishdan olingan chiqindisi bilan birga qayta ishlab metall olish jarayoniga asoslangan. Jarayon metallurgik kovshlarda olib borilib harorat 1250 о С ni tashkil etadi va natijada metallga nisbatan kambag'allashgan shlak va shteyn olinadi. Ushbu tadqiqot haydash yo'li bilan olinadigan uchuvchan metallarni olish jarayonini jadallashtirishga va temir hamda misni tiklashga, metallurgiya chiqindilarini utilizatsiya qilish darajasini oshirishga yordam beradi. Kalit so'zlar: metallurgiya sanoati chiqindilari, pirometallurgiya, retsikling, shlakni kambag'allashtirish.
Annotation. The study relates to the processing of metal-containing wastes of metallurgical production using wastes of aluminum producing plant. The process is carried out into the metallurgical ladle during 1250 о С with recovering depleted matte and slag. This study will increase the intensity of the processes of sublimation of flying metals and reduction of iron and copper, increase the degree of utilization of metallurgical waste.
Annotatsiya. Mazkur tadqiqot tarkibida metall saqlagan chiqindilarni alyuminiyli xomashyolarni ikkilamchi eritishdan olingan chiqindisi bilan birga qayta ishlab metall olish jarayoniga asoslangan. Jarayon metallurgik kovshlarda olib borilib harorat 1250 о С ni tashkil etadi va natijada metallga nisbatan kambag'allashgan shlak va shteyn olinadi. Ushbu tadqiqot haydash yo'li bilan olinadigan uchuvchan metallarni olish jarayonini jadallashtirishga va temir hamda misni tiklashga, metallurgiya chiqindilarini utilizatsiya qilish darajasini oshirishga yordam beradi. Kalit so'zlar: metallurgiya sanoati chiqindilari, pirometallurgiya, retsikling, shlakni kambag'allashtirish.
Research Interests: Metallurgical Engineering, Chemistry, Inorganic Chemistry, Recycling, Metallurgy, and 10 moreExtractive Metallurgy, Waste recycling, Metallurgy and Materials Engineering, Copper, Underground Coal Gasification (UCG), Welding Metallurgy, Metallurgical and Materials Engineering, Chemical Metallurgy, Recycled Tire Rubber, and Utilization of cementitious industrial waste products (slag, fly ash, silica fume) and natural pozzolans
The article considers the inevitability of copper losses with slag and the possibility of reducing them by various methods and using local secondary technogenic formations. It has been established that the developed and widely used in... more
The article considers the inevitability of copper losses with slag and the possibility of reducing them by various methods and using local secondary technogenic formations. It has been established that the developed and widely used in industry technologies for decopperizing of slag only partially solve the problem and lead to significant irretrievable losses of metal with dump slag. The main factors affecting the magnitude of the casualties are established, and suggestions for reducing their negative impact are recommended. The use of perfect mixing devices is recommended, as in this case, it is possible to achieve a maximum reduction in the residual concentration of copper in the waste slag. Together, it is possible to make an increase in the complexity of the use of raw materials with the organization and implementation of low-waste technology.
Research Interests: Metallurgical Engineering, Recycling, Metallurgy, Extractive Metallurgy, Waste recycling, and 14 moreMetallurgy and Materials Engineering, Ancient Metallurgy, Copper, Foundry Metallurgy, Physical Metallurgy, Welding Metallurgy, Metallurgy and Material Science, Metallurgical and Materials Engineering, Chemical Metallurgy, Materials and Metallurgical Engineering, Materials and Metallurgy, Waste Tire, Utilization of cementitious industrial waste products (slag, fly ash, silica fume) and natural pozzolans, and Usage waste tires as a reducing agent and fuel in copper metallurgy
The article considers metallurgical problems of measures to prevent of losing copper with waste slags in melting processes and main factors which negatively impacting to this index is temperature, content and condition of conducting... more
The article considers metallurgical problems of measures to prevent of losing copper with waste slags in melting processes and main factors which negatively impacting to this index is temperature, content and condition of conducting copper smelting process. It has been installed what addition different secondary technogenic products of local industrial enterprises which consist of copper and other valuable components for changing physical and chemical properties of slags and lower general losing of copper.
Research Interests:
The article deals with the problem of reducing copper losses from waste slags. A comprehensive solution to the problem with the use of physicochemical methods of influence on the melt is proposed. It is shown that the success of the... more
The article deals with the problem of reducing copper losses from waste slags. A comprehensive solution to the problem with the use of physicochemical methods of influence on the melt is proposed. It is shown that the success of the depletion process depends on the sulfiding of oxidized copper compounds, the reduction of magnetite in the slag to wustite, and the creation of conditions for the coalescence of fine drops of matte. Creating these conditions makes it possible to reduce the residual concentration of copper to the level applied. This can be obtained poor matte, which is processed by pouring them into a melting furnace. Depleted slag is waste products and can be implemented in the construction industry. In fact, this makes it possible to abandon the creation of slag heaps.
Research Interests: Hydrometallurgy, Metallurgy, Extractive Metallurgy, Waste recycling, Metallurgy and Materials Engineering, and 11 moreCopper extraction and production, Copper, Physical Metallurgy, Chemical Metallurgy, Magnetite, Copper Smelting, Extractive Metallurgy/ Hydrometallurgy, Pyrometallurgy, Extractive metallurgy of gold, Copper Slags, and Pyrometallurgy of Non Ferrous Metals
The article considers the inevitability of copper losses with slag and the possibility of reducing them by various methods and using local secondary technogenic formations. It has been established that the developed and widely used in... more
The article considers the inevitability of copper losses with slag and the possibility of reducing them by various methods and using local secondary technogenic formations. It has been established that the developed and widely used in industry technologies for slag decontamination only partially solve the problem and lead to significant irretrievable losses of metal with dump slag. The main factors affecting the magnitude of the losses are established and suggestions for reducing their negative impact are recommended. The use of perfect mixing devices is recommended, as in this case, it is possible to achieve a maximum reduction in the residual concentration of copper in the waste slag. Together, it is possible to achieve an increase in the complexity of the use of raw materials with the organization and implementation of low-waste technology.
Research Interests: Metallurgy, Extractive Metallurgy, Waste recycling, Copper extraction and production, Uranium Ores Extraction and Beneficiation, and 7 moreExtractive Metallurgy/ Hydrometallurgy, Pyrometallurgy, Extractive metallurgy of gold, Ferrous and Non Ferrous Metallurgy, Slag and Sludge Recycling, Pyrometallurgy of Nickel Laterite, and Pyrometallurgy of Non Ferrous Metals
Bugungi kunda sanoatda, xalq xo`jaligida, tibbiyotda, zamonaviy texnologiyalarda va boshqa bir qancha sohalarda misga bo`lgan ta’lab oshib bormoqda. Buning natijasida esa mis ishlab chiqarish hajmi yildan yilga oshirilib borilmoqda. Dunyo... more
Bugungi kunda sanoatda, xalq xo`jaligida, tibbiyotda, zamonaviy texnologiyalarda va boshqa bir qancha sohalarda misga bo`lgan ta’lab oshib bormoqda. Buning natijasida esa mis ishlab chiqarish hajmi yildan yilga oshirilib borilmoqda. Dunyo miqyosida xalq xo‘jaligining turli tarmoqlarida misning ishlatilishi foiz hisobida taxminan quyidagichadir (%):
Research Interests:
In the process of oxygen torch smelting, copper sulfide concentrates are processed by oxidative smelting in the presence of technical oxygen (95% oxygen). This process is completely autogenous. In this case, if the content of sulfides in... more
In the process of oxygen torch smelting, copper sulfide concentrates are processed by oxidative smelting in the presence of technical oxygen (95% oxygen). This process is completely autogenous. In this case, if the content of sulfides in the concentrate is low, and the content of oxide compounds is high, it is impossible to heat the furnace well, because the furnace does not use fuel. This means that the processing of low-sulfur sulfide copper concentrates in an oxygen torch smelting furnace becomes inefficient. The purpose of the proposed method in the study is to increase the heat transfer capacity of sulfide copper concentrates and save natural resources.
Research Interests:
The purpose of summarizing gold extraction is to use ball mills in the grinding process, and the dispersed gold particles in the cores of the balls, which are cracked due to strong deformation during grinding, broken in certain places... more
The purpose of summarizing gold extraction is to use ball mills in the grinding process, and the dispersed gold particles in the cores of the balls, which are cracked due to strong deformation during grinding, broken in certain places under the influence of strong blows, have a very high density. resulting in mechanical adhesion. As a result, during the magnetic separation of the bush, gold is released with these fragments of crushed balls. Until it is possible to extract gold from this magnetic fraction, these crushed ball fragments are stored in special places without being sent for processing.
Research Interests:
It is well known that the process of processing common ores is basically the same, in which ores containing different metals are first crushed and ground in an aqueous medium when they arrive at concentrators. Grinding and grinding are... more
It is well known that the process of processing common ores is basically the same, in which ores containing different metals are first crushed and ground in an aqueous medium when they arrive at concentrators. Grinding and grinding are different processes and vary depending on the size of the product. Ore sizes for crushing range from 1,500 mm to 10-15 mm. It is available in sizes from 10 mm to 0.074 mm (or 74 μm). In addition, these processes are differentiated by the equipment used, for example, the use of jaw or cone crushers for grinding gold ore, and ball and rod mills for grinding. The aim of this study is to slightly change the principle of operation of ball mills by taking a more scientific approach to the grinding process and machine to further improve these preparation processes. It is known that today the balls of the mill are made of steel and sometimes cast iron. In an aqueous medium, when these balls hit the raw material, the ore is mechanically deformed, crushed, and resized. Because the balls are made of steel or cast iron, they are highly malleable and can be used to grind ore. However, there is a shortcoming in this process, in which the balls repeatedly hit the gold in the ore, resulting in a mechanical alloy. As the process continues, when the balloons become unusable, they are replaced with new ones. When the steel balls of mills used to grind other types of ore become unusable, they are liquefied and processed in metallurgical furnaces.
Research Interests:
To obtain pure precious metal, a technology has been developed for its purification from impurities. It was named refining. During this procedure, the metal goes through several stages of processing, as a result of which silver, gold or... more
To obtain pure precious metal, a technology has been developed for its purification from impurities. It was named refining. During this procedure, the metal goes through several stages of processing, as a result of which silver, gold or platinum of a given purity is obtained.
Research Interests:
Steel production in Uzbekistan is based on secondary metallurgy, which is carried out at Uzmetkombinat. The main raw material of the enterprise is secondary ferrous compounds. Due to the shortage of raw materials, the company's... more
Steel production in Uzbekistan is based on secondary metallurgy, which is carried out at Uzmetkombinat. The main raw material of the enterprise is secondary ferrous compounds. Due to the shortage of raw materials, the company's productivity has been declining in recent years. Therefore, the expansion of the raw material base of steel enterprises in Uzbekistan remains one of the most pressing issues. This led metallurgists to look for other sources of iron-rich raw materials. After many years of research, several sources of iron have been identified. In addition to iron ore deposits, secondary raw materials include process powders of arc steel smelting furnaces and cakes or clinker for zinc production.
Research Interests:
It is known that 85% of the world's copper is obtained by pyrometallurgy and 10-15% by hydrometallurgy. The choice of technology for the production of copper depends primarily on the mineral nature of the copper in the ore. For example,... more
It is known that 85% of the world's copper is obtained by pyrometallurgy and 10-15% by hydrometallurgy. The choice of technology for the production of copper depends primarily on the mineral nature of the copper in the ore. For example, if the ore contains copper in the form of complete sulfides, then pyrometallurgical methods must be used. If in the form of oxides, then hydrometallurgical or combined methods are used. In addition, metallurgical production also depends on the natural, economic and geological potential of the region, i.e. the availability of coke, natural gas and similar natural resources required for production.
Research Interests:
The following sequence of processes was used to achieve the goal of the study: - Initially, a slag was prepared to increase the heat transfer properties of sulfide concentrates. The slag is mixed with ordinary sulfide copper concentrate,... more
The following sequence of processes was used to achieve the goal of the study: - Initially, a slag was prepared to increase the heat transfer properties of sulfide concentrates. The slag is mixed with ordinary sulfide copper concentrate, flux and pyrite concentrate. Compounds containing large amounts of SiO2 from gold concentrator wastes were used as flux as quartz flux, and gypsum compounds from sulfuric acid plants were used as lime flux. As pyrite enriches were used enriches formed after selective enrichment of sulfides and containing large amounts of pyrite.
Research Interests:
Dunyoda ishlab chiqariladigan misning 80 % miqdori pirometallurgik usulga toʻgʻri keladi. Shu jumladan, Bizning mamlakatimizda ham mis eritish zavodida pirometallurgik usuldan keng foydalaniladi. Bu usul oʻzining qulayliklari bilan... more
Dunyoda ishlab chiqariladigan misning 80 % miqdori pirometallurgik
usulga toʻgʻri keladi. Shu jumladan, Bizning mamlakatimizda ham mis eritish zavodida pirometallurgik usuldan keng foydalaniladi. Bu usul oʻzining qulayliklari bilan birgalikda bir qancha kamchiliklarga ham ega. Shulardan biri mis ishlab chiqarishda juda katta miqdorda chiqindi-shlaklarning hosil
boʻlishidir.
usulga toʻgʻri keladi. Shu jumladan, Bizning mamlakatimizda ham mis eritish zavodida pirometallurgik usuldan keng foydalaniladi. Bu usul oʻzining qulayliklari bilan birgalikda bir qancha kamchiliklarga ham ega. Shulardan biri mis ishlab chiqarishda juda katta miqdorda chiqindi-shlaklarning hosil
boʻlishidir.
Research Interests: Metallurgical Engineering, Chemical Engineering, Chemistry, Analytical Chemistry, Inorganic Chemistry, and 14 moreOrganic Chemistry, Physical Chemistry, Polymer Chemistry, Recycling, Metallurgy, Extractive Metallurgy, Waste recycling, Waste Management, Metallurgy and Materials Engineering, Copper, Welding Metallurgy, Metallurgical and Materials Engineering, CHEMICAL SCIENCES, and Chemical Enggineering
Olmaliq kon-metallurgiya kombinati (OKMK) singari dunyoning aksariyat korxonalarida xomaki misni ishlab chiqarishning klassik pirometallurgik sxemasi qoʻllaniladi. Bunga koʻra, sulfidli mis rudalari dastlab flotatsion usulda boyitilib,... more
Olmaliq kon-metallurgiya kombinati (OKMK) singari dunyoning aksariyat korxonalarida xomaki misni ishlab chiqarishning klassik
pirometallurgik sxemasi qoʻllaniladi. Bunga koʻra, sulfidli mis rudalari dastlab
flotatsion usulda boyitilib, tarkibida 16 – 20 % mis tutgan konsentrat olinadi.
Olingan misli konsentrat yuqori haroratda termik qayta ishlash maqsadida
metallurgik pechlarga yuklanadi. Metallurgik zavodlarda misli xomashyolarni qayta ishlashga moʻljallangan bir necha xil eritish pechlari mavjud. Ularga Yalligʻ qaytaruvchi, Kislorod-mashʼalali va Vanyukov kabi eritish pechlarini misol tariqasida keltirish mumkin. Bu eritish pechlarining ishlash prinsiplari har xil boʻlishiga qaramay olinadigan mahsulotlari bir-biriga oʻxshash boʻladi, yaʼni
mahsulot sifatida misli shteyn (30 – 50 % Cu), shlak va sanoat gazlari hosil boʻladi. Oraliq mahsulot – misli shteynni konvertorlash jarayoniga beriladi, u yerda havo kislorodi ishtirokida shteyn tarkibidagi keraksiz elementlarni oksidlantirish yoʻli bilan misni tozalab xomaki mis olinadi (96 – 98 % Cu). Soʻngra xomaki misni olovli tozalash jarayonida anod qoliplarga quyib
elektroliz jarayoniga yuboriladi va natijada yuqori sifatli misli katodlar olinadi
(99,99 % Cu).
pirometallurgik sxemasi qoʻllaniladi. Bunga koʻra, sulfidli mis rudalari dastlab
flotatsion usulda boyitilib, tarkibida 16 – 20 % mis tutgan konsentrat olinadi.
Olingan misli konsentrat yuqori haroratda termik qayta ishlash maqsadida
metallurgik pechlarga yuklanadi. Metallurgik zavodlarda misli xomashyolarni qayta ishlashga moʻljallangan bir necha xil eritish pechlari mavjud. Ularga Yalligʻ qaytaruvchi, Kislorod-mashʼalali va Vanyukov kabi eritish pechlarini misol tariqasida keltirish mumkin. Bu eritish pechlarining ishlash prinsiplari har xil boʻlishiga qaramay olinadigan mahsulotlari bir-biriga oʻxshash boʻladi, yaʼni
mahsulot sifatida misli shteyn (30 – 50 % Cu), shlak va sanoat gazlari hosil boʻladi. Oraliq mahsulot – misli shteynni konvertorlash jarayoniga beriladi, u yerda havo kislorodi ishtirokida shteyn tarkibidagi keraksiz elementlarni oksidlantirish yoʻli bilan misni tozalab xomaki mis olinadi (96 – 98 % Cu). Soʻngra xomaki misni olovli tozalash jarayonida anod qoliplarga quyib
elektroliz jarayoniga yuboriladi va natijada yuqori sifatli misli katodlar olinadi
(99,99 % Cu).
Research Interests: Metallurgical Engineering, Environmental Science, Materials Science, Chemistry, Inorganic Chemistry, and 14 moreOrganic Chemistry, Physical Chemistry, Medicinal Chemistry, Hydrometallurgy, Metallurgy, Extractive Metallurgy, Ecology, Mineral Processing, Environmental Chemistry, Metallurgy and Materials Engineering, Chemical Reaction Engineering, Copper, Welding Metallurgy, and Pyrometallurgy
Har yili dunyo miqyosida insonlarning koʻpayishi, ishlab chiqarish va sanoatning kengayishi katta shaharlarning globallashuvi bu - oziq-ovqat tanqisligi, ishlab chiqarish va sanoat chiqindi gazlari, qattiq hamda suyuq chiqindilari,... more
Har yili dunyo miqyosida insonlarning koʻpayishi, ishlab chiqarish va
sanoatning kengayishi katta shaharlarning globallashuvi bu - oziq-ovqat tanqisligi, ishlab chiqarish va sanoat chiqindi gazlari, qattiq hamda suyuq chiqindilari, maishiy chiqindilarni hosil boʻlishiga olib kelmoqda. Misol qilib aytsak, yer yuzida har kuni 11 250 000 tonnadan ortiq chiqindi hosil boʻladi va bu balandligi 3 km, eni 1 km boʻlgan chiqindi togʻi deganidir. Bundan tashqari, sanoat va ishlab chiqarish chiqindilari hajmi maishiy chiqindidan bir necha marotaba koʻproq miqdorni tashkil etadi. Bu holat esa kelajakda inson va atrof-muhitni qanday katta ekologik muammolarga duch kelishi mumkinligini isbotidir.
sanoatning kengayishi katta shaharlarning globallashuvi bu - oziq-ovqat tanqisligi, ishlab chiqarish va sanoat chiqindi gazlari, qattiq hamda suyuq chiqindilari, maishiy chiqindilarni hosil boʻlishiga olib kelmoqda. Misol qilib aytsak, yer yuzida har kuni 11 250 000 tonnadan ortiq chiqindi hosil boʻladi va bu balandligi 3 km, eni 1 km boʻlgan chiqindi togʻi deganidir. Bundan tashqari, sanoat va ishlab chiqarish chiqindilari hajmi maishiy chiqindidan bir necha marotaba koʻproq miqdorni tashkil etadi. Bu holat esa kelajakda inson va atrof-muhitni qanday katta ekologik muammolarga duch kelishi mumkinligini isbotidir.
Research Interests:
Черная металлургия Республики Узбекистан представлена таким предприятием как АО «Узметкомбинат». Основным источником сырья для выплавки стали является железосодержащий лом различного состава. Выплавка стали на предприятии осуществляется... more
Черная металлургия Республики Узбекистан представлена таким
предприятием как АО «Узметкомбинат». Основным источником сырья для выплавки стали является железосодержащий лом различного состава.
Выплавка стали на предприятии осуществляется в дуговой
сталеплавильной печи. При плавке образуется большое количество пыли, уносимой отходящими газами. В пылях сталеплавильных печей, кроме
железосодержащих компонентов, содержится значительное количество
цинка в виде оксида цинка (ZnO до 17%).
предприятием как АО «Узметкомбинат». Основным источником сырья для выплавки стали является железосодержащий лом различного состава.
Выплавка стали на предприятии осуществляется в дуговой
сталеплавильной печи. При плавке образуется большое количество пыли, уносимой отходящими газами. В пылях сталеплавильных печей, кроме
железосодержащих компонентов, содержится значительное количество
цинка в виде оксида цинка (ZnO до 17%).
Research Interests: Metallurgical Engineering, Chemical Engineering, Materials Science, Chemistry, Inorganic Chemistry, and 12 morePhysical Chemistry, Powder Metallurgy, Metallurgy, Extractive Metallurgy, Metallurgy and Materials Engineering, Chemical Reaction Engineering, Welding Metallurgy, Metallurgical and Materials Engineering, Chemical Metallurgy, Materials and Metallurgical Engineering, CHEMICAL SCIENCES, and Chemical Enggineering
The study relates to the processing of zinc-containing wastes of metallurgical production using products of joint pyrolysis of polyethylene wastes and wood pods. The process is carried out in two stages: preparation of polyethylene waste... more
The study relates to the processing of zinc-containing wastes of metallurgical production using products of joint pyrolysis of polyethylene wastes and wood pods. The process is carried out in two stages: preparation of polyethylene waste for the operation and then the recovery process. Zinc-containing wastes are thickened, dehydrated to a moisture content of not more than 10-13%, mixed with a reducing agent. Dehydrated Zinc-containing wastes (cake or sludge) are mixed with synthetic reducing agents in a mass ratio cake-artificial reducing agent from 8.8: 2.2 to 8.2: 2.8, respectively, and pelletized. They carry out reductive heat treatment of pelletized waste in the presence of a reliable carbon-containing reducing agent in the amount of 20-40% by weight of the processed waste and the resulting products of the combined pyrolysis of polyethylene waste and wood pods with counter current air blasting in a rotary kiln, distillation of zinc and trapping of sublimates to produce zinc oxides. Moreover, before igniting a reliable, reducing agent and pyrolysis products of polyethylene wastes (synthetic reducing agent), gaseous fuel is burned in the working volume of the furnace. This study will increase the intensity of the processes of sublimation of zinc and reduction of iron, increase the degree of utilization of polymer waste.
Research Interests: Metallurgical Engineering, Chemical Engineering, Materials Science, Chemistry, Inorganic Chemistry, and 15 moreRecycling, Metallurgy, Extractive Metallurgy, Waste Management, Solid Waste Management, Metallurgy and Materials Engineering, Chemical Reaction Engineering, Heavy metals, Non-ferrous metals, ZnO (Zinc Oxide), Welding Metallurgy, Polyethylene, Metallurgical and Materials Engineering, Chemical Metallurgy, and Pyrometallurgy
About 80% of the world's copper is produced by pyrometallurgical methods. In particular, the pyrometallurgical method is widely used in our country at the copper smelter of the Almalyk Mining and Metallurgical Combine (AMMC). This method... more
About 80% of the world's copper is produced by pyrometallurgical methods. In particular, the pyrometallurgical method is widely used in our country at the copper smelter of the Almalyk Mining and Metallurgical Combine (AMMC). This method has its advantages and disadvantages. One of them is the production of large amounts of copper slag. These slags are mainly formed as a result of processing of sulfide copper concentrates in metallurgical units such as "Reverberatory furnace", "Oxygen torch furnace" and "Vanyukov furnace" and as a result of conversion of liquid copper matte, which is poured into buckets and sent to special dumps. Slag processing is the most pressing problem of modern copper metallurgy.
Research Interests: Metallurgical Engineering, Chemistry, Inorganic Chemistry, Powder Metallurgy, Recycling, and 14 moreMetallurgy, Extractive Metallurgy, Waste recycling, Metallurgy and Materials Engineering, Copper extraction and production, Copper, Physical Metallurgy, Welding Metallurgy, Metallurgy and Material Science, Metallurgical and Materials Engineering, Chemical Metallurgy, Materials and Metallurgical Engineering, Utilization of cementitious industrial waste products (slag, fly ash, silica fume) and natural pozzolans, and Metallurgical and Material Engineering
It should be noted that the amount of waste generated by population growth will increase. The amount of waste increases by 6% every year. The least recyclable waste in the composition of this waste is the waste of these polyethylene bags.... more
It should be noted that the amount of waste generated by population growth will increase. The amount of waste increases by 6% every year. The least recyclable waste in the composition of this waste is the waste of these polyethylene bags. The most difficult to assemble and recycle plastic bags are those up to 40 microns thick. Due to the unprofitability of the processing of waste from these polyethylene bags, a large number of polymer bags accumulate at the landfills, causing environmental
pollution.
pollution.
Research Interests: Environmental Engineering, Chemical Engineering, Chemistry, Analytical Chemistry, Inorganic Chemistry, and 15 moreOrganic Chemistry, Physical Chemistry, Chemistry Education, Polymer Chemistry, Renewable Energy, Metallurgy, Environmental Sustainability, Physical Metallurgy, Welding Metallurgy, Metallurgical and Materials Engineering, Chemical Metallurgy, Materials and Metallurgical Engineering, polymer science and Engineering, CHEMICAL SCIENCES, and Chemical Engineer
The article discusses an innovative method of reducing the loss of gold with waste cyanide solutions. To conduct this study, chemical reagents were used that allow the removal of harmful impurities and create the optimal conditions for... more
The article discusses an innovative method of reducing the loss of gold with waste cyanide solutions. To conduct this study, chemical reagents were used that allow the removal of harmful impurities and create the optimal conditions for the complete leaching of gold-bearing ores. The results show that the introduction of this technology in industry will increase their productivity.
Research Interests: Metallurgical Engineering, Chemical Engineering, Chemistry, Inorganic Chemistry, Powder Metallurgy, and 15 moreHydrometallurgy, Metallurgy, Extractive Metallurgy, Metal Forming (Engineering), Metallurgy and Materials Engineering, Ancient Metallurgy, Physical Metallurgy, Welding Metallurgy, Hydrometallurgy & Minerals processing, Metallurgical and Materials Engineering, Chemical Metallurgy, Materials and Metallurgical Engineering, Pyrometallurgy, Extractive metallurgy of gold, and Research Related to Metallic and Minerals
In the production process of copper large amounts of solid waste products (slag) mainly containing iron silicate-fayalite (2FeO•SiO2), aluminum oxide, calcium oxide as well as lead, zinc, copper and molybdenum, arsenic and selenium... more
In the production process of copper large amounts of solid waste products (slag) mainly containing iron silicate-fayalite (2FeO•SiO2), aluminum oxide, calcium oxide as well as lead, zinc, copper and molybdenum, arsenic and selenium presenting in less than 1 percent concentration is generated. The waste products deposition into the environment causes serious environmental problems and depots maintenance operations require significant expenses [1, p. 5]. Materials and methods. It is well-known that the fayalite (2FeO•SiO2) is resistant to dilute acids and hydroxides. Concentrated acids and hydroxides dissolve copper slag, but unfortunately this process is accomplished with high reagents consumption. On the other hand, the alkali metals (Na, K) react with silicon dioxide (silica-SiO2) forming water-soluble silicates. Actually, under oxidation conditions the fayalite (2FeO•SiO2) is transformed into a mechanical mixture of oxides (Fe2O3, Fe3O4 and SiO2).
Research Interests: Metallurgical Engineering, Chemical Engineering, Chemistry, Powder Metallurgy, Metallurgy, and 11 moreExtractive Metallurgy, Chemical, Metallurgy and Materials Engineering, Ancient Metallurgy, Welding Metallurgy, Ancient Mining and Metallurgy, Metallurgical and Materials Engineering, Chemical Metallurgy, Materials and Metallurgical Engineering, Chemical Enggineering, and Metallurgical and Material Engineering
For a requirements satisfaction in metals annually in the world more than 10 billion t of different types of minerals are taken. At the same time there is a downward tendency of content of valuable components in the extracted ores, the... more
For a requirements satisfaction in metals annually in the world more than 10 billion t of different types of minerals are taken. At the same time there is a downward tendency of content of valuable components in the extracted ores, the condition of fields worsens, and inventories practically of all types of minerals are reduced. In the modern mining industry waste of mining and metallurgical production shall be processed further in a complex, and the reagents participating in processes of their extraction shall be exposed to complete safe utilization or regeneration and return to production.
Research Interests: Metallurgical Engineering, Chemical Engineering, Chemistry, Organic Chemistry, Powder Metallurgy, and 13 moreMetallurgy, Extractive Metallurgy, Chemical, Metallurgy and Materials Engineering, Ancient Metallurgy, Welding Metallurgy, Metallurgy and Material Science, Metallurgical and Materials Engineering, Chemical Metallurgy, Materials and Metallurgical Engineering, Chemical and Process Systems Engineering, Chemical Enggineering, and Metallurgical and Material Engineering
The main problems of increasing complex-using from raw materials during processing of copper sulfide concentrates have been shown in this article. In implementing this process on an industrial scale, it is recommended for decreasing... more
The main problems of increasing complex-using from raw materials during processing of copper sulfide concentrates have been shown in this article. In implementing this process on an industrial scale, it is recommended for decreasing amount of copper in waste materials with method of working with different reducing agents. As these components it has been installed what addition different secondary technogenic products of local industrial enterprises which consist of copper and other valuable components for changing physical and chemical properties of slags and lower general losing of copper.
Research Interests: Metallurgical Engineering, Chemical Engineering, Chemistry, Powder Metallurgy, Metallurgy, and 11 moreExtractive Metallurgy, Chemical, Metallurgy and Materials Engineering, Ancient Metallurgy, Welding Metallurgy, Ancient Mining and Metallurgy, Metallurgical and Materials Engineering, Chemical Metallurgy, Ancient Iron Metallurgy, Chemical Enggineering, and Metallurgical and Material Engineering
Physicochemical properties of metallurgical slags wasted from copper production have been shown in this article. There are many information has been given about theoretical bases of processes which occurring during the smelting of... more
Physicochemical properties of metallurgical slags wasted from copper production have been shown in this article. There are many information has been given about theoretical bases of processes which occurring during the smelting of copper-saved raw materials. And so main technological parameters of taking of copper-saved molten phase have been found which forms after smelting process.
Research Interests: Metallurgical Engineering, Chemical Engineering, Chemistry, Analytical Chemistry, Powder Metallurgy, and 12 moreMetallurgy, Extractive Metallurgy, Metallurgy and Materials Engineering, Ancient Metallurgy, Applied Chemistry, Copper, Physical Metallurgy, Welding Metallurgy, Metallurgical and Materials Engineering, Chemical Metallurgy, Materials and Metallurgy, and Metallurgical and Material Engineering
В отходах пирометаллургического производства меди накоплено значительное количество отвальных шлаков. Даже при среднем содержании меди в них 0,30–0,80 %, видно, что потери металлы составляет значительных. В этой связи задача создания... more
В отходах пирометаллургического производства меди накоплено значительное количество отвальных шлаков. Даже при среднем содержании меди в них 0,30–0,80 %, видно, что потери металлы
составляет значительных. В этой связи задача создания рациональной и комплексной технологии переработки шлаков и промпродуктов медного производства является весьма актуальной. В статье рассмотрен инновационный метод снижения потерь меди со шлаком. Для проведения этого исследования
использованы восстановительно-сульфидирующих комплексы (ВСК), состоящие из клинкеров цинкового производства и хвостов обогатительных фабрик АГМК. Полученные результаты показывает, что внедрение данной технологии в промышленность позволит повысить комплексности использование сырья.
составляет значительных. В этой связи задача создания рациональной и комплексной технологии переработки шлаков и промпродуктов медного производства является весьма актуальной. В статье рассмотрен инновационный метод снижения потерь меди со шлаком. Для проведения этого исследования
использованы восстановительно-сульфидирующих комплексы (ВСК), состоящие из клинкеров цинкового производства и хвостов обогатительных фабрик АГМК. Полученные результаты показывает, что внедрение данной технологии в промышленность позволит повысить комплексности использование сырья.
Research Interests: Metallurgical Engineering, Chemical Engineering, Chemistry, Powder Metallurgy, Metallurgy, and 10 moreExtractive Metallurgy, Metallurgy and Materials Engineering, Ancient Metallurgy, Copper extraction and production, Copper, Physical Metallurgy, Welding Metallurgy, Metallurgical and Materials Engineering, Chemical Metallurgy, and Materials and Metallurgical Engineering
В статье рассмотрено проблемы получение металлизированных железных концентратов из низкосортного сырья. Дано полезные информации о теоретических основах процессов, которые происходящие при восстановления железа из её руды и... more
В статье рассмотрено проблемы получение металлизированных железных концентратов из низкосортного сырья. Дано полезные информации о теоретических основах процессов, которые происходящие при восстановления железа из её руды и железосодержащих материалов. А также, определены основные технологические параметры получения окатышей, образующейся при процесс металлизации. Из этих материалов можно использовать как сырье для получение стали.
Research Interests: Metallurgical Engineering, Chemical Engineering, Chemistry, Inorganic Chemistry, Powder Metallurgy, and 13 moreMetallurgy, Extractive Metallurgy, Metallurgy and Materials Engineering, Ancient Metallurgy, Welding Metallurgy, Ancient Mining and Metallurgy, Metallurgical and Materials Engineering, Chemical Metallurgy, Thermodynamics and kinetics of materials and metallurgical processes, alternative Iron making routes, process optimization, Analitical Chemistry, Powder Metallugy, Metallurgical and Material Engineering, and Металлургия
В статье приводятся основные этапы создания автогенных технологий переработки сульфидных медных концентратов. Показано, что внедрение автогенных технологий существенно интенсифицирует процессы, создается возможность работы без расхода... more
В статье приводятся основные этапы создания автогенных технологий переработки сульфидных медных концентратов. Показано, что внедрение автогенных технологий существенно интенсифицирует процессы, создается возможность работы без расхода внешнего углеводородного топлива,
обеспечить все необходимое тепло для металлургической плавки исключительно за счет экзотермических реакций. Показана роль кислорода, как основного компонента, обеспечивающего полноту и скорость физико-химических превращений компонентов шихты. Коротко приведены сведения о таких процессах как «Outokumpu», «JMCO», КФП и другие.
обеспечить все необходимое тепло для металлургической плавки исключительно за счет экзотермических реакций. Показана роль кислорода, как основного компонента, обеспечивающего полноту и скорость физико-химических превращений компонентов шихты. Коротко приведены сведения о таких процессах как «Outokumpu», «JMCO», КФП и другие.
Research Interests:
Ввиду отсутствия опубликованных данных, измерение плотности высокомедистых шлаковых расплавов от содержания меди, предположительно можно объяснить с позиций кластерной теории строения оксидных расплавов. Согласно этой теории с ростом... more
Ввиду отсутствия опубликованных данных, измерение плотности высокомедистых шлаковых расплавов от содержания меди, предположительно можно объяснить с позиций кластерной теории строения оксидных расплавов. Согласно этой теории с ростом
концентрации катионов металла, в частности меди, плотность шлакового расплава увеличивается за счет разукрупнения кремнекислородных комплексов более плотными катионами
меди, сопровождающееся более плотной упаковкой модифицированных комплексов оксидной системы при одной и той же температуре.
концентрации катионов металла, в частности меди, плотность шлакового расплава увеличивается за счет разукрупнения кремнекислородных комплексов более плотными катионами
меди, сопровождающееся более плотной упаковкой модифицированных комплексов оксидной системы при одной и той же температуре.
Research Interests:
The article considers the inevitability of copper losses with slag and the possibility of reducing them by various methods and using local secondary technogenic formations. It has been established that the developed and widely used in... more
The article considers the inevitability of copper losses with slag and the possibility of reducing them by various methods and using local secondary technogenic formations. It has been established that the developed and widely used in industry technologies for decopperizing of slag only partially solve the problem and lead to significant irretrievable losses of metal with dump slag. The main factors affecting the magnitude of the losses are established and suggestions for reducing their negative impact are recommended. The use of perfect mixing devices is recommended, as in this case, it is possible to achieve a maximum reduction in the residual concentration of copper in the waste slag. Together, it is possible to achieve an increase in the complexity of the use of raw materials with the organization and implementation of low-waste technology.
Research Interests: Environmental Engineering, Mining Engineering, Metallurgy, Waste recycling, Ecology, and 15 moreCopper extraction and production, Minerals Processing, Hydrometallurgy & Minerals processing, Copper Pyro-Metallurgy, Pyrometallurgy, Environmental Safety, Copper Slag, Waste Tire, Factors Influencing Recycling and Reuse of Solid Wastes, Innovations in Minerals Processing, Pyrometallurgy of Non Ferrous Metals, Copper slag, strength properties, Replace soil and sand with alternate materials, Slag Recycling, tire processing, and Usage waste tires as a reducing agent and fuel in copper metallurgy
Ushbu kitobda Aylanuvchi quvurli pech, Aglomeratsion kuydirish mashinasi, “Qaynar qatlamli” pech, Koʻp tubli pech, Domna, Romelt, Midrex, Kislorodli konverter, Marten, Ikki vannali, Yalligʻ qaytaruvchi, Outokumpu, Kislorod - mash’alali,... more
Ushbu kitobda Aylanuvchi quvurli pech, Aglomeratsion kuydirish mashinasi, “Qaynar qatlamli” pech, Koʻp tubli pech, Domna, Romelt, Midrex, Kislorodli konverter, Marten, Ikki vannali, Yalligʻ qaytaruvchi, Outokumpu, Kislorod - mash’alali, Isasmelt, KIVSET, Vanyukov, Shaxtali, Shlak haydovchi fyuming-pech, Gorizontal konverter, Yoyli poʻlat eritish pechi, Induksion, Ruda-termik, Olovli tozalash, Vakuumli kabi metallurgiya sanoatida keng foydalaniladigan pechlar haqida qisqa va lo'nda ma'lumotlar keltirilgan.
Research Interests: Engineering, Materials Engineering, Materials Science, Thermodynamics, Chemistry, and 15 moreInorganic Chemistry, Metallurgy, Heat Transfer, Materials Science and Engineering, Copper, Copper age, Cast Iron, Ironmaking and Steelmaking, Electric arc furnace, Iron Smelting, Furnace, Copper Smelting, Pyrometallurgy, Lead Smelting, and Roasting
Darslik ―Metallurgiyada biotexnologik jarayonlar‖ fani dasturi asosida yozilgan boʻlib, maʼruza matnlari, amaliy mashgʻulotlar hamda boshqa materiallarni oʻz ichiga jamlagan. Unda metallurgik jarayonlarda... more
Darslik ―Metallurgiyada biotexnologik jarayonlar‖ fani dasturi asosida yozilgan boʻlib, maʼruza matnlari, amaliy mashgʻulotlar hamda boshqa materiallarni oʻz ichiga jamlagan. Unda metallurgik jarayonlarda qoʻllaniladigan mikrojonzotlar haqida maʼlumotlar, bakterial tanlab eritish bilan boradigan jarayonlarining termodinamikasi, bakterial tanlab eritish kinetikasi va mexanizmi, metall sulfidlarini bakterial tanlab eritish asosida metall yoki uning birikmalarini suvli eritmalardan ajratib olish jarayonlarining asoslariga doir mavzular yoritib oʻtilgan.
Darslik 60712100 – ―Metallurgiya‖ taʼlim yoʻnalishi talabalariga va shu soha mutaxassislariga tavsiya etiladi.
Darslik 60712100 – ―Metallurgiya‖ taʼlim yoʻnalishi talabalariga va shu soha mutaxassislariga tavsiya etiladi.
Research Interests: Mining Engineering, Chemical Engineering, Biochemistry, Materials Science, Chemistry, and 14 moreInorganic Chemistry, Organic Chemistry, Biotechnology, Hydrometallurgy, Bioleaching/ Bacterial Leaching, Metallurgy, Hydrochemistry, Leaching, Environmental Sustainability, Bioinorganic Chemistry, Metallurgy and Materials Engineering, EXTRACTION, Gold mining, and Chemical Engineering Technology
Mazkur darslik “Gidrometallurgiya jarayonlari nazariyasi” fani asosida yozilgan bo‘lib, ma’ruza matnlari, amaliy mashg‘ulotlar hamda boshqa materiallarni o‘z ichiga jamlagan. Unda elektrolit eritmalarning termodinamikasidan ma’lumotlar,... more
Mazkur darslik “Gidrometallurgiya jarayonlari nazariyasi” fani asosida yozilgan bo‘lib, ma’ruza matnlari, amaliy mashg‘ulotlar hamda boshqa materiallarni o‘z ichiga jamlagan. Unda elektrolit eritmalarning termodinamikasidan ma’lumotlar, oddiy tanlab eritish va kimyoviy reaksiya bilan boradigan tanlab eritish jarayonlarining termodinamikasi, tanlab eritish kinetikasi va mexanizmi, tanlab eritish tezligini oshirish choralari, sof metall, metall oksidi va metall sulfidlarini tanlab eritish kinetikasi va mexanizmi, ekstraksion jarayonlarning asoslari, ionalmashuvchi jarayonlarning asoslari, metall yoki metall birikmalarini suvli eritmalardan ajratib olish jarayonlarining asoslariga doir mavzular yoritib o‘tilgan. Bundan tashqari, har bobdan so‘ng amaliy mashg‘ulotlar va hisob ishlari keltirilgan.
Research Interests: Chemical Engineering, Chemistry, Analytical Chemistry, Inorganic Chemistry, Organic Chemistry, and 8 morePhysical Chemistry, Hydrometallurgy, Metallurgy, Extractive Metallurgy, Sustainable Water Resources Management, Gold Mineralization, Metallurgy and Materials Engineering, and Metallurgical and Materials Engineering
The monograph presents theoretical approaches and concepts, analytical reviews, practical solutions in specific areas of metallurgy. The publication may be interesting to Uzbek and foreign scientists, managers and specialists of factories... more
The monograph presents theoretical approaches and concepts, analytical reviews, practical solutions in specific areas of metallurgy.
The publication may be interesting to Uzbek and foreign scientists, managers and specialists of factories and metallurgical organizations, engineers, technologists, teachers, masters and students of higher educational institutions.
Responsibility for the authenticity and accuracy of citations, names, titles and other information, as well as for compliance with intellectual property laws lies with the authors of published materials.
The publication may be interesting to Uzbek and foreign scientists, managers and specialists of factories and metallurgical organizations, engineers, technologists, teachers, masters and students of higher educational institutions.
Responsibility for the authenticity and accuracy of citations, names, titles and other information, as well as for compliance with intellectual property laws lies with the authors of published materials.
Research Interests: Materials Engineering, Metallurgical Engineering, Materials Science, Chemistry, Inorganic Chemistry, and 15 morePowder Metallurgy, Hydrometallurgy, Metallurgy, Extractive Metallurgy, Materials Science and Engineering, Metallurgy and Materials Engineering, Ancient Metallurgy, Physical Metallurgy, Welding Metallurgy, Ancient Mining and Metallurgy, Metallurgical and Materials Engineering, Chemical Metallurgy, Materials and Metallurgical Engineering, Pyrometallurgy, and Extractive metallurgy of gold
В монографии изложены основные законы физической химии и металловедения, являющиеся основой анализа металлургических систем. Основное внимание уделено анализу изменения состояния вещества в ходе металлургического производства от исходного... more
В монографии изложены основные законы физической химии и металловедения, являющиеся основой анализа металлургических систем. Основное внимание уделено анализу изменения состояния вещества в ходе металлургического производства от исходного сырья до получения чистых металлов и их сплавов. В книге изложены теоретические основы восстановительных процессов оксидов металлов, вопросы взаимодействия в системах твердое тело – газ, твердое тело, жидкость, а также твердофазные процессы. Рассмотрены вопросы теплообмена и газодинамики в металлургических системах. Монография предназначена для студентов, магистров и докторантов, специализирующиеся в области металлургического образования. Может быть, полезна для молодых специалистов и научных работников для усовершенствования существующих технологий и создания новых.
Research Interests: Metallurgical Engineering, Chemical Engineering, Chemistry, Inorganic Chemistry, Powder Metallurgy, and 15 moreHydrometallurgy, Metallurgy, Extractive Metallurgy, Waste recycling, Metallurgy and Materials Engineering, Chemical Reaction Engineering, Copper extraction and production, Copper, Physical Metallurgy, Welding Metallurgy, Metallurgical and Materials Engineering, Chemical Metallurgy, Materials and Metallurgy, Pyrometallurgy, and Utilization of cementitious industrial waste products (slag, fly ash, silica fume) and natural pozzolans
Методические указания составлены на основании типовых и рабочих программ по курсу «Теория гидрометаллургических процессов».
Методическое руководство рассмотрено и утверждено на заседании кафедры «Металлургия»
Методическое руководство рассмотрено и утверждено на заседании кафедры «Металлургия»
Research Interests: Metallurgical Engineering, Chemistry, Analytical Chemistry, Inorganic Chemistry, Hydrometallurgy, and 9 moreMetallurgy, Extractive Metallurgy, Metallurgy and Materials Engineering, Welding Metallurgy, Hydrometallurgy & Minerals processing, Metallurgical and Materials Engineering, Chemical Metallurgy, Extractive Metallurgy, Hydrometallurgy, Analytical Chemistry, and Extractive Metallurgy/ Hydrometallurgy
В лабораторный практикум включены работы по курсу "Теория гидрометаллургических процессов", отражающие основные процессы в современной металлургии. Также рассмотрены физико-химические процессы сорбционных материалов.
Research Interests: Metallurgical Engineering, Chemical Engineering, Chemistry, Analytical Chemistry, Hydrometallurgy, and 13 moreMetallurgy, Extractive Metallurgy, Leaching, Mineral Processing, Metallurgy and Materials Engineering, Solvent Extraction, Welding Metallurgy, Hydrometallurgy & Minerals processing, Metallurgical and Materials Engineering, Chemical Metallurgy, EXTRACTION, Extractive Metallurgy/ Hydrometallurgy, and Pyrometallurgy
Методические указания составлены на основании типовых и рабочих программ по курсу «Теория гидрометаллургических процессов». Данное методическое указания написан на основе предмета "Теория гидрометаллургических процессов" и содержит в... more
Методические указания составлены на основании типовых и рабочих программ по курсу «Теория гидрометаллургических процессов». Данное методическое указания написан на основе предмета "Теория гидрометаллургических процессов" и содержит в своем составе текст лекций, практических занятий и других материалов. В нем рассматриваются такие темы как, общие сведения о термодинамике электролитных растворов, термодинамика простого выщелачивания, термодинамика процессов химического выщелачивания, кинетика и механизм процессов выщелачивания, методы ускорения процессов выщелачивания, кинетика и механизм процессов выщелачивания самородков, оксидов и сульфидов металлов, основы процессов экстракции, основы ионообменных процессов, а также основы выделения металлов и их соединений из водных растворов.
Research Interests: Metallurgical Engineering, Chemical Engineering, Chemistry, Analytical Chemistry, Inorganic Chemistry, and 14 moreHydrometallurgy, Metallurgy, Extractive Metallurgy, Leaching, Metallurgy and Materials Engineering, Chemical Reaction Engineering, Welding Metallurgy, Hydrometallurgy & Minerals processing, Metallurgical and Materials Engineering, Chemical Metallurgy, Chimistry, Extractive industries, Extractive Metallurgy/ Hydrometallurgy, and Pyrometallurgy
Uslubiy qo‘llanmada gidrometallurgiya jarayonlarining nazariy asoslariga tayangan holda bu jarayonlarda uchraydigan kimyoviy hamda termokimyoviy qonuniyatlar asosida ma’ruzalar matni ko‘rsatib o‘tilgan. Muhim gidrometallurgik jarayonlar:... more
Uslubiy qo‘llanmada gidrometallurgiya jarayonlarining nazariy asoslariga tayangan holda bu jarayonlarda uchraydigan kimyoviy hamda termokimyoviy qonuniyatlar asosida ma’ruzalar matni ko‘rsatib o‘tilgan. Muhim gidrometallurgik jarayonlar: eritmalarda uchraydigan qonuniyatlar, moddalarning ionlarga parchalanishi, tanlab eritish jarayonlarining asosiy termodinamik ko‘rsatkichlari, аsosiy va keng tarqalgan gidrometallurgik jarayonlarning mexanizmi va kinetikasining ajralib turadigan xossalari keltirilgan bo‘lib, jarayonlarni intensivlashtirishning asosiy yo‘llari bayon etilgan.
Research Interests: Metallurgical Engineering, Chemical Engineering, Chemistry, Inorganic Chemistry, Hydrometallurgy, and 12 moreMetallurgy, Extractive Metallurgy, Hydrochemistry, Leaching, Metallurgy and Materials Engineering, Copper, Welding Metallurgy, Hydrometallurgy & Minerals processing, Metallurgical and Materials Engineering, Analitical Chemistry, Pyrometallurgy, and Chmical Engineering
Ushbu uslubiy ko‘rsatma 5310300 “Metallurgiya” yo‘nalishi bo‘yicha bakalavr tayyorlashda o‘qitiladigan “Gidrometallurgiya jarayonlari nazariyasi” fani dasturi asosida tuzilgan va kafedra majlisida tasdiqlangan. Laboratoriya ishlarini... more
Ushbu uslubiy ko‘rsatma 5310300 “Metallurgiya” yo‘nalishi bo‘yicha bakalavr tayyorlashda o‘qitiladigan “Gidrometallurgiya jarayonlari nazariyasi” fani dasturi asosida tuzilgan va kafedra majlisida tasdiqlangan. Laboratoriya ishlarini bajarish uchun uslubiy ko‘rsatma “Metallurgiya” yo‘nalishida ta’lim olayotgan bakalavriat talabalari uchun mo‘ljallangan bo‘lib, shuningdek, yo‘nalish magistrantlari o‘zlarining ilmiy-tadqiqot ishlari yuzasidan tajribalar o‘tkazishda foydalanishlari mumkin.
Research Interests:
Uslubiy qo‘llanmada gidrometallurgiya jarayonlarining nazariy asoslariga tayangan holda bu jarayonlarda uchraydigan kimyoviy hamda termokimyoviy qonuniyatlar asosida amaliy mashg‘ulotlar ko‘rsatib o‘tilgan. Muhim gidrometallurgik... more
Uslubiy qo‘llanmada gidrometallurgiya jarayonlarining nazariy asoslariga tayangan holda bu jarayonlarda uchraydigan kimyoviy hamda termokimyoviy qonuniyatlar asosida amaliy mashg‘ulotlar ko‘rsatib o‘tilgan. Muhim gidrometallurgik jarayonlar: eritmalarda uchraydigan qonuniyatlar, moddalarning ionlarga parchalanishi, tanlab eritish jarayonlarining asosiy termodinamik ko‘rsatkichlari, аsosiy va keng tarqalgan gidrometallurgik jarayonlarning mexanizmi va kinetikasining ajralib turadigan xossalari keltirilgan bo‘lib, jarayonlarni intensivlashtirishning asosiy yo‘llari bayon etilgan.
Toshkent davlat texnika universiteti ilmiy – uslubiy kengashi qaroriga asosan chop etildi.
Toshkent davlat texnika universiteti ilmiy – uslubiy kengashi qaroriga asosan chop etildi.
Research Interests:
Qo‘llanma metallurgiya sohasiga qiziqadigan barcha kitobxonlarga mo‘ljallangan bo‘lib, xususan “Metallurgiya” yo‘nalishida ta’lim olayotgan talabalarga va metallurgiya korxonalariga ishga kirmoqchi bo‘lgan bakalavrlarga qo‘llanma sifatida... more
Qo‘llanma metallurgiya sohasiga qiziqadigan barcha kitobxonlarga
mo‘ljallangan bo‘lib, xususan “Metallurgiya” yo‘nalishida ta’lim
olayotgan talabalarga va metallurgiya korxonalariga ishga kirmoqchi
bo‘lgan bakalavrlarga qo‘llanma sifatida tavsiya etiladi.
Qo‘llanma o‘z tarkibiga metallurgiya sohasiga tegishli savoljavoblarni, metallar haqidagi eng zarur ma’lumotlarni, sohaga oid ilmiy
yangilik va qiziqarli ma’lumotlarni hamda mamlakatimizda ishlab
chiqariladigan metallarning qisqacha texnologik jarayonlari haqidagi
qismlarni oladi.
Ushbu qo‘llanmadan “Metallurgiya” sohasi bo‘yicha dars beradigan
o‘qituvchilar ham foydalanishlari mumkin.
mo‘ljallangan bo‘lib, xususan “Metallurgiya” yo‘nalishida ta’lim
olayotgan talabalarga va metallurgiya korxonalariga ishga kirmoqchi
bo‘lgan bakalavrlarga qo‘llanma sifatida tavsiya etiladi.
Qo‘llanma o‘z tarkibiga metallurgiya sohasiga tegishli savoljavoblarni, metallar haqidagi eng zarur ma’lumotlarni, sohaga oid ilmiy
yangilik va qiziqarli ma’lumotlarni hamda mamlakatimizda ishlab
chiqariladigan metallarning qisqacha texnologik jarayonlari haqidagi
qismlarni oladi.
Ushbu qo‘llanmadan “Metallurgiya” sohasi bo‘yicha dars beradigan
o‘qituvchilar ham foydalanishlari mumkin.