发明名称 |
PREVENTION OF COPPER DISSOLUTION DURING CYANIDATION OF GOLD ORES |
摘要 |
PREVENTION OF COPPER DISSOLUTION DURING CYANIDATION OF GOLD ORES A process for treating copper containing precious metal ores prior to cyanidation and recovery of the precious metal eg gold. The process involves addition to the ore before or after milling of a water soluble or water dispersible surface active agent in the form of a fatty alkyl amine preferably an ethoxylated fatty alkyl amine. The agent reduces the high cyanide consumption, which is caused by copper dissolution, by passivating the mineral surface.
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申请公布号 |
CA2001632(A1) |
申请公布日期 |
1990.04.29 |
申请号 |
CA19892001632 |
申请日期 |
1989.10.27 |
申请人 |
BRITISH PETROLEUM COMPANY PLC (THE) |
发明人 |
BENNETT, CHARLES A.;CRATHORNE, ELIZABETH A.;EDWARDS, RAYMOND |
分类号 |
C22B;C22B11/00;C22B11/08;(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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