FIELD: process engineering.
SUBSTANCE: invention relates to powder metallurgy, in particular, to production of electrolytic powders. To produce silver powders, silver is settled down from electrolyte containing hydrogen nitrate silver nitrate at electrolyser plant comprising soluble anode made from silver and cathode. Flocculants "АК" or "Магнафлок" are added as polyacrylamide-based surfactants into electrolyte in amount of 30-200 mg per 1 kg of produced silver powder. Deposition is performed at revering current and periodic change of anode and cathode polarity.
EFFECT: high yield of powders.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING FINE SILVER POWDER IN NITRATE ELECTROLYTE | 2019 |
|
RU2720189C1 |
| ELECTROLYTIC PRODUCTION OF FINE DISPERSED SILVER POWDERS | 2014 |
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| NON-CONSUMABLE ANODE FOR ELECTROLYSIS | 2019 |
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| REFINED SILVER PRODUCING METHOD | 2004 |
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RU2210631C2 |
| 0 |
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| METHOD FOR EXTRACTING GOLD FROM CONCENTRATES | 2010 |
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| METHOD OF RECOVERING SILVER FROM WASTE SOLUTIONS AND ELECTROLYTES | 0 |
|
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| METHOD OF WASTE PROCESSING OF ELECTRONIC AND ELECTROTECHNICAL INDUSTRY | 2016 |
|
RU2644719C2 |
| METHOD OF OBTAINING SILVER-CONTAINING CONCENTRATE (VERSIONS) | 2007 |
|
RU2340565C1 |
