发明名称 |
PROCESS FOR LEACHING GOLD AND SILVER |
摘要 |
In the so-called cyanidation-in-mill technique, the ores, ore concentrates and waste material from previous incomplete leachings which are to be leached are treated in the mill with a cyanide-containing leaching solution, gold and silver being at least partly leached. Compared with the known cyanidation-in-mill technique in the presence of hydrogen peroxide, the gold yield can be considerably increased if leaching is carried out in the presence of a peroxoborate compound. The peroxoborate may be present in solid and/or dissolved form. 10 to 60 equivalents peroxoborate are preferably used per t of the material to be leached.
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申请公布号 |
CA2067841(A1) |
申请公布日期 |
1992.11.04 |
申请号 |
CA19922067841 |
申请日期 |
1992.05.01 |
申请人 |
DEGUSSA AKTIENGESELLSCHAFT |
发明人 |
LOROESCH, JUERGEN;ZIEGLER, ANNETTE |
分类号 |
C22B11/08;(IPC1-7):C22B11/08 |
主分类号 |
C22B11/08 |
代理机构 |
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