A combined chemical and biological heap leaching of an oxide goldbearing ore
Publication date: 1999-01-01
Physicochem. Probl. Miner. Process. 1999;33(1):55-61
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ABSTRACT
A heap consisting of an oxide gold-bearing ore containing 3.5 g/t of gold and 14.0 g/t of silver was leached by solutions containing amino acids of microbial origin and thiosulphate as gold- complexing agents. 68.4% of the gold and 53.6% of the silver were leached within 20 days in this way. The pregnant solutions after leaching were treated by cementation with metallic zinc. Mixed gold-bearing concentrates containing also zinc and copper as valuable components were the products from the cementation.
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| eISSN: | 2084-4735 |
| ISSN: | 1643-1049 |
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