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| Research Status and Prospect of Pyrometallurgical Treatment of Cyanide Residue from Gold Smelting |
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Received:September 26, 2020
Revised:October 09, 2020
Accepted:October 10, 2020
Published Online:December 19, 2020
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| DOI：doi：10.3969/j.issn.1007-7545.2021.01.016 |
| KeyWord:cyanidation slag; pyrometallurgical process; chloridizing roasting; roasting - magnetic separation; collaborative smelting |
| Author | Institution |
| LIU Zhi-jian |
东北大学 |
| JIN Zhe-nan |
东北大学 |
| WANG Bao-ren |
东北大学 |
| YANG Hong-ying |
东北大学 |
| DONG Zhun-qin |
山东恒邦股份有限公司 |
| CHEN Tao |
山东恒邦股份有限公司 |
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| Abstract: |
| Calcined cyaniding tailings are solid wastes produced by cyaniding of gold bearing sulfide ore, accounting for more than 50% of total cyanide slag. Gold is wrapped by iron ore and vein stone, which can be recovered effectively only by pyrometallurgical process. Current pyrometallurgical processes include gold and silver recovery by chlorination volatilization roasting, iron recovery by reduction roasting and magnetic separation, and gold and iron recovery by cyanide slag-copper concentrate combined smelting. The cooperative cyanide residue - copper concentrate smelting method has the advantages of high efficiency, economy and environmental protection, and has a broad prospect. |
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