| 发明名称 |
PROCESS FOR PURIFYING SILVER REFINERY SLIMES |
| 摘要 |
<p>Gold sand resulting from the nitric acid treatment of silver refinery slimes is purified by washing with hydrochloric acid under controlled operating conditions. Platinum and other precious metals and impurities are selectively separated from the gold sand leaving a gold sand which is more efficiently refined.</p> |
| 申请公布号 |
EP0232380(B1) |
申请公布日期 |
1991.08.21 |
| 申请号 |
EP19860905088 |
申请日期 |
1986.07.29 |
| 申请人 |
ASARCO INCORPORATED |
发明人 |
REEVES, WILLIAM, H.;READ, WELDON, D. |
| 分类号 |
C01G5/00;C01G;C01G7/00;C01G55/00;C22B3/00;C22B3/04;C22B3/06;C22B3/10;C22B7/00;C22B11/00;C22B11/06 |
主分类号 |
C01G5/00 |
| 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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