发明名称 |
Method for thiosulfate leaching of precious metal-containing materials |
摘要 |
Processes are provided for recovering precious metals from refractory materials using thiosulfate lixiviants. The processes can employ lixiviants that include at most only small amounts of copper and/or ammonia and operate at a relatively low pH, reduction of polythionates, inert atmospheres to control polythionate production, and electrolytic solutions which provide relatively high rates of precious metal recovery. |
申请公布号 |
US2004035252(A1) |
申请公布日期 |
2004.02.26 |
申请号 |
US20030446548 |
申请日期 |
2003.05.27 |
申请人 |
PLACER DOME TECHNICAL SERVICES LIMITED |
发明人 |
JI JINXING;FLEMING CHRISTOPHER ANDREW;WEST-SELLS PAUL GEORGE;HACKL RALPH PETER |
分类号 |
C22B;C22B1/00;C22B3/00;C22B3/08;C22B3/26;C22B3/42;C22B3/46;C22B11/00;C22B11/02;(IPC1-7):C22B11/00 |
主分类号 |
C22B |
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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