发明名称 |
Production of copper by gaseous reduction |
摘要 |
An improvement in the process of producing substantially oxide free copper from copper salts by reacting an acidic aqueous solution which contains the copper salts with a reducing gas at elevated temperature and pressure to precipitate metallic copper. The improvement for producing copper in free-flowing powder form comprises providing in the aqueous solution a finite amount of an addition agent selected from the group consisting of polymeric polyamine compounds having amino groups linked by alkyl groups having 2 to 4 carbon atoms.
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申请公布号 |
US4018595(A) |
申请公布日期 |
1977.04.19 |
申请号 |
US19750636327 |
申请日期 |
1975.11.28 |
申请人 |
SHERRITT GORDON MINES LIMITED |
发明人 |
GENIK-SAS-BEREZOWSKY, ROMAN MICHAEL |
分类号 |
B22F9/26;C22B5/12;C22B15/00;(IPC1-7):C22C1/04;C22B1/10 |
主分类号 |
B22F9/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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