CN110028250A - A method of aluminosilicate alkali-resistant glass fibre is prepared using red mud - Google Patents
A method of aluminosilicate alkali-resistant glass fibre is prepared using red mud Download PDFInfo
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- CN110028250A CN110028250A CN201910484673.1A CN201910484673A CN110028250A CN 110028250 A CN110028250 A CN 110028250A CN 201910484673 A CN201910484673 A CN 201910484673A CN 110028250 A CN110028250 A CN 110028250A
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- Prior art keywords
- red mud
- alkali
- glass fibre
- glass
- resistant glass
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- 239000003365 glass fiber Substances 0.000 title claims abstract description 49
- 239000003513 alkali Substances 0.000 title claims abstract description 35
- 229910000323 aluminium silicate Inorganic materials 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 20
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 43
- 239000000835 fiber Substances 0.000 claims abstract description 9
- 239000011521 glass Substances 0.000 claims description 58
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 23
- 239000000292 calcium oxide Substances 0.000 claims description 21
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 21
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 19
- 229910052681 coesite Inorganic materials 0.000 claims description 16
- 229910052906 cristobalite Inorganic materials 0.000 claims description 16
- 239000000377 silicon dioxide Substances 0.000 claims description 16
- 229910052682 stishovite Inorganic materials 0.000 claims description 16
- 229910052905 tridymite Inorganic materials 0.000 claims description 16
- 229910052593 corundum Inorganic materials 0.000 claims description 15
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 15
- 238000001354 calcination Methods 0.000 claims description 14
- 239000000395 magnesium oxide Substances 0.000 claims description 12
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 12
- 238000004131 Bayer process Methods 0.000 claims description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 8
- 238000005491 wire drawing Methods 0.000 claims description 7
- 229910017976 MgO 4 Inorganic materials 0.000 claims description 6
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 6
- 238000012805 post-processing Methods 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 2
- 239000000470 constituent Substances 0.000 claims description 2
- 239000008367 deionised water Substances 0.000 claims description 2
- 229910021641 deionized water Inorganic materials 0.000 claims description 2
- 238000013461 design Methods 0.000 claims description 2
- 239000006066 glass batch Substances 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 238000003672 processing method Methods 0.000 claims description 2
- 241000790917 Dioxys <bee> Species 0.000 claims 1
- 229910003978 SiClx Inorganic materials 0.000 claims 1
- 238000004458 analytical method Methods 0.000 claims 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims 1
- 239000003518 caustics Substances 0.000 claims 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims 1
- IFSXZLJQEKGQAF-UHFFFAOYSA-M nuclear fast red Chemical compound [Na+].O=C1C2=CC=CC=C2C(=O)C2=C1C(O)=C(S([O-])(=O)=O)C(O)=C2N IFSXZLJQEKGQAF-UHFFFAOYSA-M 0.000 claims 1
- 238000007873 sieving Methods 0.000 claims 1
- 238000002156 mixing Methods 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 8
- 239000004615 ingredient Substances 0.000 abstract description 6
- 238000005303 weighing Methods 0.000 abstract description 5
- 239000004568 cement Substances 0.000 abstract description 3
- 239000011211 glass fiber reinforced concrete Substances 0.000 abstract description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 abstract 1
- 229910004298 SiO 2 Inorganic materials 0.000 abstract 1
- 239000005354 aluminosilicate glass Substances 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 239000002910 solid waste Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 239000005995 Aluminium silicate Substances 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 description 3
- 235000012211 aluminium silicate Nutrition 0.000 description 3
- 239000003607 modifier Substances 0.000 description 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 229910001928 zirconium oxide Inorganic materials 0.000 description 3
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000004031 devitrification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 206010054949 Metaplasia Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 239000006184 cosolvent Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/022—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from molten glass in which the resultant product consists of different sorts of glass or is characterised by shape, e.g. hollow fibres, undulated fibres, fibres presenting a rough surface
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
- C03C13/001—Alkali-resistant fibres
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
- C03C13/06—Mineral fibres, e.g. slag wool, mineral wool, rock wool
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Glass Compositions (AREA)
Abstract
本发明公开了一种利用赤泥制备铝硅酸盐耐碱玻璃纤维的方法，涉及工业固体废弃物赤泥的合理利用领域和玻璃纤维材料领域。本发明中原料的质量百分比为：赤泥18～32%、SiO2 53～60%、CaO 7～11%、MgO 3～4%、Al2O3 1～6%。经过赤泥的预处理、配料计算、称量、混合、溶制、成型(或拉制)、冷却等工序，制得耐碱性能较优的铝硅酸盐玻璃纤维。本发明的有益之处在于，将赤泥以一种绿色高价的方式加以回收利用，不仅对改善环境有利，而且能降低耐碱玻璃纤维的生产成本，有助于推广GRC(Glass Fiber Reinforced Concrete or Cement玻璃纤维增强混凝土)材料，具有良好的社会经济效益。The invention discloses a method for preparing aluminosilicate alkali-resistant glass fiber by using red mud, and relates to the field of rational utilization of industrial solid waste red mud and the field of glass fiber materials. The mass percentages of the raw materials in the present invention are: red mud 18-32%, SiO 2 53-60%, CaO 7-11%, MgO 3-4%, Al 2 O 3 1-6%. The aluminosilicate glass fiber with better alkali resistance can be obtained through processes such as pretreatment of red mud, calculation of ingredients, weighing, mixing, dissolving, forming (or drawing), and cooling. The benefit of the present invention lies in that the red mud is recycled in a green and high-priced manner, which is not only beneficial to improving the environment, but also reduces the production cost of alkali-resistant glass fibers, which is helpful for the promotion of GRC (Glass Fiber Reinforced Concrete or Glass Fiber). Cement glass fiber reinforced concrete) material, has good social and economic benefits.
Description
Technical field
Reasonable the present invention relates to industrial solid castoff red mud utilizes field and glass fiber material field, and in particular to
A method of aluminosilicate alkali-resistant glass fibre is prepared using red mud.
Background technique
With the continuous development of aluminium industry, the stacking of highly basic industrial residue red mud therein is more and more, every production one
Ton aluminium oxide, will give off 0.6 ~ 1.8 ton of red mud, the red mud of mass production is nearly all air storage, this does not have not only
The red mud that the effect of red mud is all brought into play, and is stacked has very big destruction to local environment, and PH is up to 12.5
Red mud leachate not only causes serious pollution to surrounding water resource, air, soil, microorganism etc., can also be to locals
Life cause direct or indirect influence.Therefore it economizes on resources, protects environment, the research rationally utilized to red mud is one
A imperative research topic.
At present for the reasonable development of red mud using limited, there are three directions for main application, one is in construction material
With the preparation of new function material, this is also current red mud using most directions；The second is for protecting environment as absorption
The application of material；The third is the application of extraction and recycling to valuable metal in red mud.Although the research to red mud all exists every year
Deepen, but at present in the world to the reasonable using only 15% or so of red mud, China utilizes only 4% or so to red mud.
Glass fibre be developed earliest be in order to substitute asbestos fibre, but the glass fibre alkaline resistance properties of early stage compared with
Difference uses medium-alkali glass fibre, loses intensity soon in cement.Until 1970, Britain has invented first to be contained
The alkali-resistant glass fibre of zirconium oxide, so that GRC (Glass Fiber Reinforced Concrete or Cement glass fibers
Dimension enhancing concrete) extensive use of material is possibly realized, but the introducing of zirconium oxide is so that the molten system and wire-drawing temperature of glass mention
Height, and for enterprise, production cost is also increasing.
By basalt glass the study found that in its ingredient do not contain zirconium oxide, but have preferable alkaline resistance properties, with
What its surface generated contains Fe3+、Mg2+Do not allow compound related, therefore Fe will be contained2O3, MgO red mud made as raw material
Standby aluminosilicate alkali-resistant glass fibre is possibly realized, and can not only be increased the consumption of red mud, can also be reduced alkali-resistant glass fibre
Production cost, the certain economic results in society of bring.
Summary of the invention
The channel being utilized the purpose of the present invention is increasing red mud, reduces the stacking of red mud, allows red mud to obtain relatively reasonable
Utilization, reduce red mud and the pollutions of surrounding enviroment destroyed, in addition to this, red mud is produced as aluminium silicate glass fibers
Primary raw material, can reduce the production cost of alkali-resistant glass fibre, further have stimulated the consumption of red mud.
Technical scheme is as follows:
A kind of using red mud as the composition of the aluminosilicate alkali-resistant glass fibre of raw material, feature is as follows, the quality percentage of raw material
Than are as follows: red mud 18~32%, SiO2 53~60%, CaO 7~11%, MgO 3~4%, Al2O3 1~6%.
The red mud is to pass through pretreated Bayer process red mud, processing method are as follows: calcining is (in 800 ~ 900 DEG C of temperature
Lower calcining 3 ~ 5 hours), then be ground up, sieved.
The composition of oxide mass percentage in above-mentioned glass fibre is as follows: SiO260~64%, Al2O37~11%,
CaO 9~13%, Fe2O37~10%, MgO 4~5%, Na2O 2~4%, TiO21~2%, other 0 ~ 1%, wherein " 0 " is unlimited
Close to 0 without being 0.
It should be noted that oxide mass percentage forms in red mud are as follows: SiO217.2~17.7%, CaO 11.3~
11.6%, MgO 0.7~1%, Al2O318.4~19.2%, Fe2O332~32.5%, Na2O 11.5~11.9%, TiO25.8~
6.2%, other 1.2~1.6%, loss on ignitions 6~6.6%.
A kind of performance test preparing aluminosilicate alkali-resistant glass fibre using red mud: country variant area and company are to glass
The method of glass chemical stability test is different, and the glass fibre in the present invention tests its resistance to chemical corrosion using powder method,
Water resistance test is immersed in the centrifuge tube for being fitted into deionized water, is lauched at 80 DEG C having a size of 60 ~ 80 mesh glass particles
After bath heating 25h, its mass loss is weighed；Alkaline resistance properties test is to be immersed in loading having a size of 60 ~ 80 mesh glass particles
The NaOH solution of 1mol/L and the Na of 0.5mol/L2CO3In the centrifuge tube of isometric mixed solution of solution, the water-bath at 80 DEG C
After heating 25h, its mass loss is weighed.
A method of aluminosilicate alkali-resistant glass fibre is prepared using red mud, comprising the following steps:
(1) red mud is being put into temperature lower calcination 3 ~ 5 hours of 800 ~ 900 DEG C by the pretreatment of Bayer process red mud, then to raw material into
Row grinding, crosses 200 meshes for red mud later；
(2) Bayer process red mud under the processing of step (1) is uniformly mixed with other raw materials according to the constituent content of design,
Then the glass batch mixed is poured into refractory container, 3~5h is melted in 1450~1550 DEG C of temperature, obtained
Even clear glass metal, the temperature for then adjusting glass metal are higher than 15~20 DEG C of forming temperature or so, pass through the side of wire-drawing shape
Glass metal is drawn into the fiber of diameter≤30 μm by formula, using post-processing, obtains the alkali-resistant glass fibre using red mud as raw material.
By set forth above known, the oxide composition of the red mud in the present invention is main are as follows: SiO2、Al2O3、CaO、MgO、
Fe2O3, this is identical as the main component of glass fibre, wherein SiO2The work of network skeleton is played in aluminium silicate glass fibers
With, be determine chemical durability of glass, thermal stability and mechanical strength principal element, but content be not easy it is excessively high, it is excessive to draw
Membership increases the molten temperature raising processed of glass and the viscosity of glass, and the production difficulty of glass can be made to increase, be unfavorable for glass
Production, the too low degree of polymerization that can make glass of content reduce, and are unfavorable for the production of glass, by a large amount of the study found that SiO2's
57.1 ~ 64.6%, this range is most suitable for content control, then by SiO2Range of the scope control 60 ~ 64%.
Al2O3Play a part of network intermediate, a small amount of Al in aluminium silicate glass fibers2O3In glass can
The crystallization property for reducing glass, can also increase the mechanical strength and endurance quality of glass, but too high levels will lead to glass
Viscosity increase, become difficult the molten system of glass, the study found that excessive Al2O3The alkaline resistance properties of glass, which can also be made, to be reduced.
Work as Al2O3Content control most suitable between 0.5 ~ 14%, Al in raw material of the invention2O3Content be 7 ~ 11%.
CaO is alkaline earth oxide, is the Network modifier in glass structure, has increase glass alkali resistance in glass
The effect of energy reduces the viscosity of glass, but excessive CaO meeting in addition to this it is possible to increase the mechanical strength of glass, hardness
Increase the crystallization of glass.Studies have shown that the content of CaO is most suitable 10 ~ 24%, the content control of the CaO in the present invention exists
9 ~ 13% range.
MgO is the Network modifier in alkaline earth oxide and glass structure, the effect in glass structure with
The effect of CaO is similar, in the present invention, removes outside the MgO that itself is included in red mud, is re-introduced into a small amount of MgO to substitute CaO, can
To reduce tendency towards devitrification, the content of MgO determines the range 4 ~ 5%.
The existence form of Fe oxide in glass is mainly FeO and Fe2O3, FeO is in glass structure as network outer body
Play a part of glass skeleton, Fe2O3Mainly exist in glass with Network former, keeps glass structure finer and close.Bayer
Fe oxide in method red mud is mainly with Fe2O3Form exist, the alkaline resistance properties of glass fibre can be increased.
Na2O and K2O belongs to alkali metal oxide, and Network modifier is used as in glass structure, can reduce the viscous of glass
Degree and improvement devitrification of glass tendency, are good cosolvents when glass is molten processed, the Na in the present invention2O and K2O is mainly that industry is former
Expect that red mud is introduced.
Other than above-mentioned oxide, raw material red mud can inevitably introduce other impurities, comprising: ZrO2、CuO、
SrO, sulfide and other noble metals etc., the mass percent of content are as follows: 0~1%, wherein " 0 " be infinitely close to 0 without
It is 0.Its content accounting in entire raw material group is lower, will not performance to glass and production bring detrimental effect.
Usefulness of the present invention:
The present invention prepares aluminosilicate alkali-resistant glass fibre using industrial solid castoff red mud, not only reduces the heap of red mud
It puts, that has expanded red mud utilizes space, reduces pollution, resource is made to be reasonably used, and also reduces alkali-proof glass fibre
The manufacturing cost of dimension.Alkali-resistant glass fibre of the invention has preferable resistance to chemical corrosion, can be very good to utilize and build
Build material, the fields such as composite material.The reduction of the cost of alkali-resistant glass fibre brings certain economic benefit to society.
Specific embodiment
Further the present invention is illustrated below by specific implementation case, it should be noted that following implementation cases
Example is to help those skilled in the art and is further understood from the present invention, and embodiment simultaneously is not construed as protecting model to the present invention
The restriction enclosed, protection scope of the present invention are defined by the claims.
Embodiment 1
A method of aluminosilicate alkali-resistant glass fibre being prepared using red mud, ingredient is as follows:
The group of raw material becomes (being 100 parts of calculating with total amount): red mud 22, SiO2 58、MgO 4、CaO 10、Al2O3 6.Experiment
Step:
(1) pretreatment of raw material: first by red mud in high temperature furnace, calcining (temperature lower calcination 3.5 hours at 820 DEG C), then
Red mud is finally crossed 200 meshes by grinding；
(2) mixing: being carried out weighing mixing by the quality of above-mentioned raw materials, then mixed using dismembyator to raw material, mixing 20
Minute；
(3) it fires: the raw material mixed is poured into alumina crucible, be placed in heating in high temperature furnace, be melted at 1450 DEG C
3.5h obtains uniform clear glass metal；
(4) form: the temperature for adjusting glass metal is higher than 15 DEG C of forming temperature or so, is drawn glass metal by way of wire-drawing shape
The fiber of diameter≤30 μm is made, using post-processing, obtains the alkali-resistant glass fibre using red mud as raw material.
Embodiment 2
A method of aluminosilicate alkali-resistant glass fibre being prepared using red mud, ingredient is as follows:
The group of raw material becomes (being 100 parts of calculating with total amount): red mud 25, SiO258、MgO 4、CaO 9、Al2O34.Experiment step
It is rapid:
(1) pretreatment of raw material: first by red mud in high temperature furnace, calcining (temperature lower calcination 4 hours at 840 DEG C), then grind
Red mud is finally crossed 200 meshes by mill；
(2) mixing: being carried out weighing mixing by the quality of above-mentioned raw materials, then mixed using dismembyator to raw material, mixing 20
Minute；
(3) it fires: the raw material mixed is poured into alumina crucible, be placed in heating in high temperature furnace, be melted at 1480 DEG C
3.8h obtains uniform clear glass metal；
(4) form: the temperature for adjusting glass metal is higher than 17 DEG C of forming temperature or so, is drawn glass metal by way of wire-drawing shape
The fiber of diameter≤30 μm is made, using post-processing, obtains the alkali-resistant glass fibre using red mud as raw material.
Embodiment 3
A method of aluminosilicate alkali-resistant glass fibre being prepared using red mud, ingredient is as follows:
The group of raw material becomes (being 100 parts of calculating with total amount): red mud 28, SiO257、MgO 4、CaO 8、Al2O33.Experiment step
It is rapid:
(1) pretreatment of raw material: first by red mud in high temperature furnace, calcining (temperature lower calcination 4.6 hours at 860 DEG C), then
Red mud is finally crossed 200 meshes by grinding；
(2) mixing: being carried out weighing mixing by the quality of above-mentioned raw materials, then mixed using dismembyator to raw material, mixing 20
Minute；
(3) it fires: the raw material mixed is poured into alumina crucible, be placed in heating in high temperature furnace, be melted at 1500 DEG C
4.3h obtains uniform clear glass metal；
(4) form: the temperature for adjusting glass metal is higher than 18 DEG C of forming temperature or so, is drawn glass metal by way of wire-drawing shape
The fiber of diameter≤30 μm is made, using post-processing, obtains the alkali-resistant glass fibre using red mud as raw material.
Embodiment 4
A method of aluminosilicate alkali-resistant glass fibre being prepared using red mud, ingredient is as follows:
The group of raw material becomes (being 100 parts of calculating with total amount): red mud 31, SiO257、MgO 4、CaO 7、Al2O31.Experiment step
It is rapid:
(1) pretreatment of raw material: first by red mud in high temperature furnace, calcining (temperature lower calcination 5 hours at 890 DEG C), then grind
Red mud is finally crossed 200 meshes by mill；
(2) mixing: being carried out weighing mixing by the quality of above-mentioned raw materials, then mixed using dismembyator to raw material, mixing 20
Minute；
(3) it fires: the raw material mixed is poured into alumina crucible, be placed in heating in high temperature furnace, 5h is melted at 1530 DEG C,
Obtain uniform clear glass metal；
(4) form: the temperature for adjusting glass metal is higher than 20 DEG C of forming temperature or so, is drawn glass metal by way of wire-drawing shape
The fiber of diameter≤30 μm is made, using post-processing, obtains the alkali-resistant glass fibre using red mud as raw material.
The feasibility of aluminosilicate alkali-proof glass it can be concluded that, is prepared using red mud as raw material by above embodiment, from original
The preparation of material, the technology to required for producing can realize that commercial quantities metaplasia produces, reduce the pollution of red mud, reduce alkali-proof glass
The production cost of fiber brings good society economic benefit.
Claims (10)
1. a kind of method for preparing aluminosilicate alkali-resistant glass fibre using red mud, feature is as follows, the mass percent of raw material
Are as follows: red mud 18~32%, SiO253~60%, CaO 7~11%, MgO 3~4%, Al2O3 1~6%.
2. the method according to claim 1 for preparing aluminosilicate alkali-resistant glass fibre, which is characterized in that the red mud is
By pretreated Bayer process red mud, processing method are as follows: calcining (temperature lower calcination 3 ~ 5 hours at 800 ~ 900 DEG C), then grind
Mill, sieving.
3. Bayer process red mud according to claim 2, which is characterized in that CaO content is 10~15% in red mud, is high calcium
Red mud.
4. the method according to claim 1 for preparing aluminosilicate alkali-resistant glass fibre, which is characterized in that the dioxy
SiClx, aluminium oxide, calcium oxide, raw materials of magnesium oxide are analysis pure raw material.
5. Bayer process red mud according to claim 1 or 2, which is characterized in that oxide mass percentage composition are as follows: SiO2
17.2~17.7%, CaO 11.3~11.6%, MgO 0.7~1%, Al2O318.4~19.2%, Fe2O332~32.5%, Na2O
11.5~11.9%, TiO25.8~6.2%, other 1.2~1.6%, loss on ignitions 6~6.6%.
6. according to claim 1 with method that aluminosilicate alkali-resistant glass fibre is prepared described in 3, which is characterized in that glass fibers
The composition of oxide mass percentage is as follows in dimension: SiO260~64%, Al2O3 7~11%, CaO 9~13%, Fe2O37~
10%, MgO 4~5%, Na2O 2~4%, TiO21~2%, other 0~1%, wherein " 0 " be infinitely close to 0 without being 0.
7. oxide forms in glass fibre according to claim 6, it is characterised in that the mass ratio of the component is answered
Meet claimed below: SiO2/Al2O3 =6 ~ 9, SiO2/ CaO=2 ~ 3.5, CaO/MgO=4.5 ~ 6, Na2O+TiO2=3.5~5.8。
8. alkali-resistant glass fibre according to claim 6, characterized in that the raw material red mud of addition can be introduced inevitably
Other oxides, comprising: K2O、ZrO2, CuO, SrO and sulfide etc..
9. the method that country variant area and company test chemical durability of glass is different, according to claim 3 resistance to
Alkali containing glass fibre, it is characterized in that: sample in 80 DEG C of deionized water, impregnates the aqueous corrosion mass loss rate of 25h lower than 0.7%；
Sample impregnates the caustic corrosion mass loss rate of 25h lower than 1.3% in the aqueous slkali of 80 DEG C of PH=11~13.5.
10. a kind of method for preparing aluminosilicate alkali-resistant glass fibre using red mud, comprising the following steps:
(1) red mud is being put into temperature lower calcination 3 ~ 5 hours of 800 ~ 900 DEG C by the pretreatment of Bayer process red mud, then to raw material into
Row grinding, crosses 200 meshes for red mud later;
(2) Bayer process red mud under the processing of step (1) is uniformly mixed with other raw materials according to the constituent content of design,
Then the glass batch mixed is poured into refractory container, 3~5h is melted in 1450~1550 DEG C of temperature, obtained
Even clear glass metal, the temperature for then adjusting glass metal are higher than 15~20 DEG C of forming temperature or so, pass through the side of wire-drawing shape
Glass metal is drawn into the fiber of diameter≤30 μm by formula, using post-processing, obtains the alkali-resistant glass fibre using red mud as raw material.
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| WO2012140173A1 (en) * | 2011-04-13 | 2012-10-18 | Rockwool International A/S | Processes for forming man made vitreous fibres |
| CN105565660A (en) * | 2015-12-07 | 2016-05-11 | 济南大学 | High-performance aluminosilicate glass primarily made from red mud and preparation method of high-performance aluminosilicate glass |
| CN108191234A (en) * | 2018-01-31 | 2018-06-22 | 济南大学 | Tin-oxide doping red mud alkali resistant glass fibre and preparation method thereof |
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| US5312806A (en) * | 1990-02-01 | 1994-05-17 | Rockwool International A/S | Mineral fibres |
| CN102001823A (en) * | 2010-12-13 | 2011-04-06 | 河南煤业化工集团有限责任公司 | Production method of inorganic fiber by using red mud and fly ash |
| WO2012140173A1 (en) * | 2011-04-13 | 2012-10-18 | Rockwool International A/S | Processes for forming man made vitreous fibres |
| CN105565660A (en) * | 2015-12-07 | 2016-05-11 | 济南大学 | High-performance aluminosilicate glass primarily made from red mud and preparation method of high-performance aluminosilicate glass |
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Application publication date: 20190719 |