发明名称 |
Recovery of precious metals from metal alloys produced aluminothermically from base metal smelter AG. |
摘要 |
A method of recovering precious metals from metal alloys produced aluminothermically from base metal smelter slag, includes treating the metal alloy with aqueous sulphuric acid solution having a pH of not greater than about 2 to cause dissolution of nickel and/or cobalt and iron and to cause formation of hydrogen sulfide which reacts with copper in the metal alloy to form a copper sulfide precipitate containing at least one precious metal, and separating the copper sulphide precipitate containing at least one precious metal from the remaining solution containing cobalt sulphate and/or nickel sulphate and ferrous sulphate. |
申请公布号 |
ZA200108988(B) |
申请公布日期 |
2002.06.12 |
申请号 |
ZA20010008988 |
申请日期 |
2001.01.01 |
申请人 |
FENICEM MINERALS INC. |
发明人 |
DAVID KROFCHAK;ROBERTO BERARDI |
分类号 |
C22B3/08;C22B7/04;C22B11/02 |
主分类号 |
C22B3/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|