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Plant Practice of Roasting Technology for Low-sulfur Bearing Gold Concentrates with Circulating Fluid Bed |
Received:March 25, 2015 Revised:March 25, 2015 |
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DOI:Doi:10.3969/j.issn.1007-7545.2015.10.015 |
KeyWord:circulating fluid bed roasting; secondary floatation gold concentrates; low-sulfur bearing gold concentrates; two-stage roasting; gold extraction |
Author | Institution |
Li Yun |
北京矿冶研究总院 |
Liu Hongxiao |
新疆星塔矿业有限公司 |
Yang Hongzhong |
招远市招金贵合科技有限公司 |
Huang Haihui |
北京矿冶研究总院 |
Wang Yun |
北京矿冶研究总院 |
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Abstract: |
Low-sulfur bearing gold concentrates were floated to output secondary floatation gold concentrates bearing 25% sulfur and tailings of low-sulfur gold concentrates. Secondary floatation gold concentrates were two-stage roasted. The results show that gold-bearing sulfides react completely and inclusion gold is fully exposed after circulating fluidization roasting. Gold cyanidation leaching rate is improved by 3 percentage point after transformation. |
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