发明名称 |
Hydrometallurgical process for the recovery of precious metal values from precious metal ores with thiosulfate lixiviant |
摘要 |
A hydrometallurgical process for the recovery of precious metal values from refractory precious metal ore materials containing preg-robbing carbon by leaching with a thiosulfate lixiviant, the process comprising a. providing a body of particles and/or particulates of an ore material having precious metal values and preg-robbing carbonaceous components; b. contacting the body of particles and/or particulates with a thiosulfate lixiviant solution at conditions conducive to the formation of stable precious metal thiosulfate complexes; c. recovering the thiosulfate lixiviant from the body of particles and/or particulates after a period of contact which is sufficient for the lixiviant solution to become pregnant with precious metal values extracted from the ore material; and d. recovering the precious metal values from the lixiviant solution. In a preferred embodiment, the refractory ore materials are low grade precious metal ore materials. |
申请公布号 |
ZA9307288(B) |
申请公布日期 |
1994.04.25 |
申请号 |
ZA19930007288 |
申请日期 |
1993.09.30 |
申请人 |
NEWMONT GOLD CO.;NEWMONT MINING CORPORATION |
发明人 |
RONG-YU WAN;MARC LEVIER;CLAYTON RICHARD B. |
分类号 |
C22B11/00;C22B3/00;C22B3/06;C22B3/08;C22B3/42;C22B11/08 |
主分类号 |
C22B11/00 |
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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