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| Comprehensive Recovery of Cu and Au from Copper Oxide Gold Deposit by High Sodium Cyanide and Alkali |
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Received:August 16, 2019
Revised:August 20, 2019
Accepted:August 23, 2019
Published Online:December 18, 2019
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| DOI：doi：10.3969/j.issn.1007-7545.2020.01.004 |
| KeyWord:copper oxide gold deposit; high alkali and high cyanide; acidification; copper concentrate |
| Author | Institution |
| Chen_qinggen |
1、低品位难处理黄金资源综合利用国家重点实验室 |
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| Abstract: |
| Comprehensive recovery of Cu and Au from a copper-oxide gold mine was studied under condition of high sodium cyanide and alkali. The results show that gold leaching rate is 89.67% with charcoal gold grade of 313.20 g/t and copper grade of 1 304.48 g/t under the conditions including ore fineness of -0.074 mm of 93.54%, sodium cyanide concentration of 1 000 mg/L, pulp density of 40.00%, leaching time of 48 h, and carbon dosage of 10 g/L. Cyanide recovery is 99% above and copper grade in copper concentrate is 60% above from CIL poor liquid by acidification process. |
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