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| Effect of pH Value on Bioleaching of Chalcopyrite |
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Received:October 15, 2014
Revised:October 21, 2014
Accepted:October 22, 2014
Published Online:February 15, 2015
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| DOI：10.3969/j.issn.1007-7545.2015.03.001 |
| KeyWord:pH value; chalcopyrite; bioleaching; adsorption; jarosite |
| Author | Institution |
| MA Peng-cheng |
招金矿业股份有限公司 |
| YANG Hong-ying |
东北大学 材料与冶金学院 |
| WANG Lu-ping |
招金矿业股份有限公司 |
| YANG Pei-gen |
招金矿业股份有限公司 |
| LIU Hui |
招金矿业股份有限公司 |
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| Abstract: |
| The effects of initial pH values on bioleaching of chalcopyrite were investigated in shaking flasks. The results show that better bacterial activity and fast oxidizing ratio of ferrous ion are obtained with pH value of 1.2~1.6. Bacterium has better adaptation at initial pH value of 1.4. Fewer jarosite is produced and higher copper leaching rate is obtained with initial pH value of 1.2~1.4. pH value is the key factor to control jarosite sediment. |
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