发明名称 |
Method for the recovery of gold |
摘要 |
The invention relates to a method for the recovery of gold in connection with the hydrometallurgical production of copper from a residue or intermediate product containing sulphur and iron generated in the leaching of copper raw material. The recovery of both copper and gold takes place in a chloride milieu. The gold contained in the residue or intermediate product is leached using bivalent copper and oxygen in copper (II) chloride-sodium chloride solution in the conditions, where the oxidation-reduction potential is a maximum of 650 mV and the pH at least 1. The iron and sulphur contained in the residue remain for the most part undissolved.
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申请公布号 |
US2005160877(A1) |
申请公布日期 |
2005.07.28 |
申请号 |
US20040511382 |
申请日期 |
2004.10.14 |
申请人 |
HAMALAINEN MATTI;HYVARINEN OLLI |
发明人 |
HAMALAINEN MATTI;HYVARINEN OLLI |
分类号 |
B01D15/00;C22B3/04;C22B3/20;C22B11/00;C22B11/06;C25C1/20;C25C7/06;(IPC1-7):C22B11/00 |
主分类号 |
B01D15/00 |
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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