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| The Pretreatment and Production Practice of Refractory Gold Concentrate |
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Received:December 06, 2015
Revised:December 06, 2015
Accepted:December 11, 2015
Published Online:August 31, 2016
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| DOI： |
| KeyWord:Refractory;Gold Concentrate, Sodium;sulphide alkaline;leaching of;antimony, Two-stage;roasting, Cyanide;leaching |
| Author | Institution |
| Liu Peng |
Gansu Zhaojin Precious Metal Co Ltd |
| Wang Wei-zhen |
Beijing General Research Institute of Mining Metallurgy |
| Chen Xue-hui |
Gansu Zhaojin Precious Metal Co Ltd |
| Liu Wen-jun |
Gansu Zhaojin Precious Metal Co Ltd |
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| Abstract: |
| The refractory Gold Concentrate was pretreated by “Sodium sulphide alkaline leaching of antimony and Two-stage roasting” for arsenic and antimony removal. And then the calcine was cyanide leached for gold extraction. The effect of conditions of sodium sulphide alkaline leaching of antimony and two-stage roasting on arsenic and antimony removal rates were studied. The results showed that under the optimum conditions, the arsenic and antimony removal rates can reach 78.59% and 93.8%, respectively. The gold recovery of refractory Gold Concentrate pretreated increased to 92.3% from 48%. |
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