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| Slurry electrolysis of As-rich antimonic gold concentrate ores |
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Received:February 18, 2014
Revised:August 25, 2014
Accepted:February 19, 2014
Published Online:October 30, 2014
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| DOI： |
| KeyWord:antimonic gold concentrate ores; slurry electrolysis; antimony |
| Author | Institution |
| Yang Yong-qiang |
Beijing General Research Institute of Mining Metallurgy |
| Wang Cheng-yan |
Beijing General Research Institute of Mining Metallurgy |
| Chen Yong-qiang |
Beijing General Research Institute of Mining Metallurgy |
| Zhang Yong-lu |
Beijing General Research Institute of Mining Metallurgy |
| YIN Fei |
Beijing General Research Institute of Mining Metallurgy |
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| Abstract: |
| The application of slurry electrolysis in the treatment of As-rich antimonic gold concentrate ores was studied. The results show that the optional leaching technique of concentrate is determined as follows: the electric quantity of 1.2 times the theoretical antimony, the temperature of 60℃, the time of 6h, the hydrochloric acid concentration of 30g/L, the ammonia chloride concentration of 200g/L, the iron ion concentration of 3g/L, the liquid to solid ratio of 20:1. Under these conditions, the comprehensive and pilot tests demonstrated that the leaching rate of antimony is up to 99%, meanwhile, gold and arsenic are remained in leached residue. The contents of antimony, arsenic and gold in the electrodeposition are Sb 98.5%, As 0.11%, Au 0.12g/t. The slurry electrolysis process is further proved to be effective and stable. |
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