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| Experiment of gold and silver extraction from cyanide tailings by melting chlorination |
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Received:April 26, 2019
Revised:May 21, 2019
Accepted:May 21, 2019
Published Online:December 24, 2019
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| DOI： |
| KeyWord:cyanide tailings; molten chlorination; calcium chloride; calcium oxide; evaporation rate |
| Author | Institution |
| SUN Yanwen |
BGRIMM Technology Group |
| YUAN Chaoxin |
BGRIMM Technology Group |
| GUO Chihao |
BGRIMM Technology Group |
| LI Dajiang |
BGRIMM Technology Group |
| LI Yibin |
BGRIMM Technology Group |
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| Abstract: |
| The amount of calcium chloride, the time of chlorination and the way of adding calcium chloride were studied by using the raw material of cyanide tailings in this paper, and the experiment of decreasing the chlorination temperature was also carried out. Results show that the addition amount of CaCl2 is 7%, which is added in five times, and the chlorination time is 15min, calcium content was 5%, the melting temperature of 1450 ℃. The gold volatile rate was 95.69%, and the gold content of slag was 0.54g /t. The volatile rate of silver was 77.06%, and the silver content of slag was 4.20g /t. |
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