发明名称 |
PROCEDIMIENTO PARA PRODUCIR COBRE SUSTANCIALMENTE LIBRE DE OXIDOS A PARTIR DE SALES DE COBRE. |
摘要 |
<p>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.</p> |
申请公布号 |
ES453695(A1) |
申请公布日期 |
1977.11.16 |
申请号 |
ES19760453695 |
申请日期 |
1976.11.26 |
申请人 |
SHERRIT GORDON MINES LIMITED |
发明人 |
|
分类号 |
B22F9/26;C22B5/12;C22B15/00;(IPC1-7):01G/ |
主分类号 |
B22F9/26 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|