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| THE RESEARCH ONCOPPER REMOVAL EXPERIMENT BY PRESSURE ACID LEACHINGIN HIGH-COPPER DESORPTION OF DEPLETED CARBON |
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Received:December 20, 2016
Revised:December 24, 2016
Accepted:December 27, 2016
Published Online:June 05, 2017
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| DOI： |
| KeyWord:high-copper,desorption;of depleted;carbon,pressurized;acid leaching,decoppering |
| Author | Institution |
| Gan Yin |
Yunnan Gold Mining Group - Beiya Mining Co. Ltd. Dali,Yunnan,china. |
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| Abstract: |
| This paper that was aimed at the present situation of the high-copper desorption of depleted carbon and Low copper removal rate in the atmosphere acid ,launched the experimental study on the removal of copper by pressurized acid leaching in a gold plant in Yunnan.The results showed that the best experimental conditions for oxygen pressure 0.2MPa, hydrochloric acid mass fraction 3, acid leaching time 5% hours, liquid carbon ratio 6:1, in this experimental conditions, the rate of removal of copper up to 90.49%, the powdered carbon rate of 1.9%.The method can short effectively the pickling time and achieve satisfactory removal of copper and not addadditional additives. |
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