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| Discussion on polishing pretreatment method of coconut shell activated carbon in CIP |
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Received:October 14, 2013
Revised:October 24, 2013
Accepted:October 28, 2013
Published Online:April 20, 2015
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| DOI： |
| KeyWord:CIP; coconut shell activated carbon; polishing pretreatment; gold extraction |
| Author | Institution |
| MA Zhen-jia |
Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology |
| CHEN Wen |
Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology |
| ZHU Yun |
Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology |
| SHEN Qiang-hua |
Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology |
| ZHU Feng |
Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology |
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| Abstract: |
| Coconut shell activated carbon has been widely used in CIP process as adsorbing material in the world. When using coconut shell activated carbon adsorption, the main reason of loss gold-loaded carbon is the wear of surface. For this reason, we should take steps to polishing pretreatment before put activated carbon into agitation tanks, in order to reduce the fragile parts of activated carbon surface which can cause the loss of gold and silver. This paper compares several polishing pretreatment methods. The conclusion is that mix activated carbon with water; stir the mixture in a container which diameter is exactly twice the stirring paddle diameter. Using this method can obtain good effective activated carbon.Through the forecast of economic benefit analysis, found the appropriate polishing pretreatment is necessary. |
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