SU1708939A1 - Method for production of copper powder - Google Patents
Method for production of copper powder Download PDFInfo
- Publication number
- SU1708939A1 SU1708939A1 SU894704867A SU4704867A SU1708939A1 SU 1708939 A1 SU1708939 A1 SU 1708939A1 SU 894704867 A SU894704867 A SU 894704867A SU 4704867 A SU4704867 A SU 4704867A SU 1708939 A1 SU1708939 A1 SU 1708939A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- electrolysis
- yield
- productivity
- overvoltage
- powder
- Prior art date
Links
Landscapes
- Electrolytic Production Of Metals (AREA)
Abstract
Изобретение относитс к порошковой металлургии и может быть использовано при получении медного порошка электролизом из водных растворов электролитов. Цель изобретени - повышение выхода годного порошка с насыпной плотностью после электролиза не ниже 1,62 г/см и увеличение производительности процесса. Это достигаетс тем, что электролиз ведут при посто нном перенапр жении 0,42-0,54 В, а полиэтиленимин ввод т в состав электролита в количестве 0,0025Ч),0040 г/л. Выход годного продукта составл ет 50,1-55,3%, производительность процесса при этом составл ет 0,99 кг/м^ ч. 3 табл.IИзобретение относитс к порошковой^ металлургии, в частности к получению металлических, порошков, и может быть использовано при'получении медного порошка электролизом из водных растворов электролитов.Целью изобретени вл етс повышение выхода годного порошка с насыпной плотностью после электролиза не ниже 1,62 г/см'' и увеличение производительности процесса.Пример. Промышленный электролизер заполн ют электролитом следующего состава, г/л: сульфат меди (в пересчете на медь) 16: сернй кислота 160; полизтилени- мин 0,0032.. .Электролиз ведут при соотношении катодной и анодной поверхностей 1:8. Величину тока устанавливают такой, чтобы перенапр жение равн лось 0,42-0,54 В. По мере развити осадка и увеличени площади фронта роста токовую нагрузку поднимают таким образом, чтобы перенапр жение оставалось посто нным на уровне 0,42- 0,54 В. Электролиз ведут в течение 4,2 ч, после чего осадок стр хивают с кётодов, и начинают новый цикл наращивани осадка.Сравнительные результаты процесса электролиза по известному и предлагаемому способам приведены в табл. 1. .Вли ние перенапр жени на выход годного и производительность процесса приведены в табл. 2.Вли ние концентрации.добавки поли- этиленимина в электролите на выход годно-•ЧО 00о сооThe invention relates to powder metallurgy and can be used in the preparation of copper powder by electrolysis from aqueous electrolyte solutions. The purpose of the invention is to increase the yield of a suitable powder with a bulk density after electrolysis of at least 1.62 g / cm and an increase in the productivity of the process. This is achieved by the fact that electrolysis is carried out at a constant overvoltage of 0.42-0.54 V, and polyethyleneimine is introduced into the electrolyte in an amount of 0.0025H, 0040 g / l. The yield of the product is 50.1-55.3%, and the productivity of the process is 0.99 kg / m 3 of table 3. The invention relates to powder metallurgy, in particular to the production of metal powders, and used to obtain copper powder by electrolysis from aqueous solutions of electrolytes. The purpose of the invention is to increase the yield of usable powder with a bulk density after electrolysis of not less than 1.62 g / cm and increase the productivity of the process. An industrial electrolyzer is filled with an electrolyte of the following composition, g / l: copper sulphate (in terms of copper) 16: sulfuric acid 160; polystylenium-min 0.0032 ... The electrolysis is carried out at a ratio of cathode and anode surfaces of 1: 8. The magnitude of the current is set so that the overvoltage is equal to 0.42-0.54 V. As the precipitate develops and the area of the growth front increases, the current load is raised so that the overvoltage remains constant at 0.42-0.54 V The electrolysis is carried out for 4.2 hours, after which the precipitate is drilled from the ketodes, and a new cycle of sediment build-up is started. The comparative results of the electrolysis process according to the known and proposed methods are given in table. 1. The effect of overvoltage on the yield of the process and the productivity of the process are given in table. 2. Effect of concentration. Polyethyleneimine supplement in the electrolyte at the output of the year • • CHO 00o soo
Description
го и производительность процесса приведены в табл. 3,go and the performance of the process are given in Table. 3,
Как следует из представленных данных , электролиз при посто нном перенапр жении 0,42-0,54 В и при концентрации полиэтиленимина в электролите в пределах 0,0025-0.0040 г/л позвол ет повысить выход годного порошка с насыпной плотностью после электролиза не ниже 1,62 г/см примерно , в 2,4 раза и увеличить производительность способа в 2,6 раза.As follows from the presented data, electrolysis at a constant overvoltage of 0.42–0.54 V and at a concentration of polyethyleneimine in the electrolyte in the range of 0.0025–0.0040 g / l makes it possible to increase the yield of a suitable powder with bulk density after electrolysis not lower than 1 , 62 g / cm approximately, 2.4 times and increase the productivity of the method 2.6 times.
Формул а изобретени Способ полу ени медного порошка, включающий электролиз из сульфатного раствора с добавкой полиэтиленимина, о тличающийс тем, что, с целью повышени выхода годного порошка с насыпной плотностью после электролиза не ниже 1,62 г/см и увеличени производительности процесса, электролиз ведут при посто нном перенапр жении 0,42-0,54 В, а полиэтиленимин ввод т в количестве 0,0025-0,0004 г/л.Formulas of the Invention A method for producing copper powder, including electrolysis from a sulphate solution with an addition of polyethyleneimine, is characterized in that, in order to increase the yield of a usable powder with a bulk density after electrolysis not lower than 1.62 g / cm and increase the productivity of the process, electrolysis is carried out at a constant overvoltage of 0.42-0.54 V, and polyethyleneimine is introduced in an amount of 0.0025-0,0004 g / l.
Таблица 1Table 1
Таблица 2table 2
Таблица 3Table 3
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU894704867A SU1708939A1 (en) | 1989-06-14 | 1989-06-14 | Method for production of copper powder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU894704867A SU1708939A1 (en) | 1989-06-14 | 1989-06-14 | Method for production of copper powder |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1708939A1 true SU1708939A1 (en) | 1992-01-30 |
Family
ID=21454033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU894704867A SU1708939A1 (en) | 1989-06-14 | 1989-06-14 | Method for production of copper powder |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1708939A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7378010B2 (en) | 2004-07-22 | 2008-05-27 | Phelps Dodge Corporation | System and method for producing copper powder by electrowinning in a flow-through electrowinning cell |
US7393438B2 (en) | 2004-07-22 | 2008-07-01 | Phelps Dodge Corporation | Apparatus for producing metal powder by electrowinning |
US7452455B2 (en) | 2004-07-22 | 2008-11-18 | Phelps Dodge Corporation | System and method for producing metal powder by electrowinning |
US7494580B2 (en) | 2003-07-28 | 2009-02-24 | Phelps Dodge Corporation | System and method for producing copper powder by electrowinning using the ferrous/ferric anode reaction |
US7736475B2 (en) | 2003-07-28 | 2010-06-15 | Freeport-Mcmoran Corporation | System and method for producing copper powder by electrowinning using the ferrous/ferric anode reaction |
MD4031C2 (en) * | 2008-10-30 | 2010-12-31 | Институт Прикладной Физики Академии Наук Молдовы | Process for the galvanic obtaining of copper powder |
US8273237B2 (en) | 2008-01-17 | 2012-09-25 | Freeport-Mcmoran Corporation | Method and apparatus for electrowinning copper using an atmospheric leach with ferrous/ferric anode reaction electrowinning |
-
1989
- 1989-06-14 SU SU894704867A patent/SU1708939A1/en active
Non-Patent Citations (1)
Title |
---|
Авторское свидетельство СССР № 1537711. кл. С 25 С 5/02, 1987. . Авторское свидетелство СССР Ns 14,18349, кл. С 25 С 5/02, 1986. * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7494580B2 (en) | 2003-07-28 | 2009-02-24 | Phelps Dodge Corporation | System and method for producing copper powder by electrowinning using the ferrous/ferric anode reaction |
US7736475B2 (en) | 2003-07-28 | 2010-06-15 | Freeport-Mcmoran Corporation | System and method for producing copper powder by electrowinning using the ferrous/ferric anode reaction |
US7378010B2 (en) | 2004-07-22 | 2008-05-27 | Phelps Dodge Corporation | System and method for producing copper powder by electrowinning in a flow-through electrowinning cell |
US7393438B2 (en) | 2004-07-22 | 2008-07-01 | Phelps Dodge Corporation | Apparatus for producing metal powder by electrowinning |
US7452455B2 (en) | 2004-07-22 | 2008-11-18 | Phelps Dodge Corporation | System and method for producing metal powder by electrowinning |
US7591934B2 (en) | 2004-07-22 | 2009-09-22 | Freeport-Mcmoran Corporation | Apparatus for producing metal powder by electrowinning |
US8273237B2 (en) | 2008-01-17 | 2012-09-25 | Freeport-Mcmoran Corporation | Method and apparatus for electrowinning copper using an atmospheric leach with ferrous/ferric anode reaction electrowinning |
MD4031C2 (en) * | 2008-10-30 | 2010-12-31 | Институт Прикладной Физики Академии Наук Молдовы | Process for the galvanic obtaining of copper powder |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3874495T2 (en) | ELECTRODE CATALYST AND ITS MANUFACTURING METHOD. | |
SU1708939A1 (en) | Method for production of copper powder | |
CN1210153A (en) | One-step process of nickle hydroxide electrolysing | |
CA1260428A (en) | Suspension bath and process for production of electrolytic manganese dioxide | |
DE1960047A1 (en) | Process for the electrolytic deposition of a gold alloy and an aqueous deposition bath for carrying out the process | |
SU1537711A1 (en) | Method of producing copper powder by electrolysis | |
CN113293408A (en) | Method for electrolytic deposition of high-purity manganese from manganese chloride electrolyte | |
SU1346697A1 (en) | Method of obtaining copper powder by electrolysis | |
CN110629252B (en) | A kind of method for preparing metallic copper by electrolytic refining | |
DE19516624A1 (en) | Electrosynthesis of carboxylic acid metal salts | |
JPS6184389A (en) | Manufacture of high purity electrolytic copper | |
JP2622019B2 (en) | Method for producing granular copper fine powder | |
US20240344221A1 (en) | Process for electrolytic production of metal powder | |
SU1565920A1 (en) | Electrolyte for depositing amorphous-phosphor alloy | |
SU399577A1 (en) | METHOD OF ELECTROLYTIC DEPOSITION OF CADMIUM — Lead | |
RU2393943C2 (en) | METHOD OF PRODUCING SILVER POWDERS "ПСр1" AND "ПСр2" | |
SU1650785A1 (en) | Electrolyte for precipitation of alloy zinc-boron | |
CN101338438A (en) | Additive agent for preparing high pure zinc by electrolyzing dissoluble anode | |
SU1588806A1 (en) | Method of extracting tin | |
SU1397542A1 (en) | Method of electrolytic refining of zinc | |
CN118127570A (en) | Preparation method of electrolytic copper powder with dendritic morphology | |
US3175965A (en) | Electrolysis of pig iron containing copper | |
RU2122048C1 (en) | Method of manufacturing copper phosphorus-containing electrolyte anodes | |
SU532663A1 (en) | Manganese Electrodeposition Method | |
US4115220A (en) | Process for the preparation of high purity antimony |