| 柠檬酸强化黄铜尾矿的生物浸矿 |
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| 引用本文： | 李东伟,梁志蓉,焦斌权,李斗.柠檬酸强化黄铜尾矿的生物浸矿[J].重庆大学学报(自然科学版),2012,35(11):117-121. |
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| 作者姓名： | 李东伟 梁志蓉 焦斌权 李斗 |
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| 作者单位： | 重庆大学 资源及环境科学学院，重庆 400044;重庆大学 资源及环境科学学院，重庆 400044;重庆大学 资源及环境科学学院，重庆 400044;重庆大学 资源及环境科学学院，重庆 400044 |
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| 基金项目： | 国家自然科学基金面上项目资助项目(51274262)；笹川良一优秀青年奖学基金资助项目(SYLFF) |
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| 摘 要： | 通过摇瓶试验研究混合硫杆菌浸出黄铜矿尾矿砂，并初步探讨不同矿浆质量浓度和柠檬酸质量浓度对浸提实验的影响。研究结果表明，添加柠檬酸在一定质量浓度范围内对黄铜矿尾矿砂的硫杆菌浸提有促进作用。在整个浸提实验中，浸矿效率最高达到44.8%，溶液中柠檬酸质量浓度和矿浆质量浓度都会直接影响细菌的氧化活性和浸矿效果。
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| 关 键 词： | 黄铜尾矿砂 细菌浸出 柠檬酸质量浓度 矿浆质量浓度 |
Addition of citric acid to enhance the bioleaching chalcopyrite tailings |
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| LI Dongwei,LIANG Zhirong,JIAO Binquan and LI Dou.Addition of citric acid to enhance the bioleaching chalcopyrite tailings[J].Journal of Chongqing University(Natural Science Edition),2012,35(11):117-121. |
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| Authors: | LI Dongwei LIANG Zhirong JIAO Binquan and LI Dou |
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| Institution: | College of Resource and Environmental Science, Chongqing University, Chongqing 400044, China;College of Resource and Environmental Science, Chongqing University, Chongqing 400044, China;College of Resource and Environmental Science, Chongqing University, Chongqing 400044, China;College of Resource and Environmental Science, Chongqing University, Chongqing 400044, China |
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| Abstract: | The effect of mixed sulphur bacilli on the bioleaching of chalcopyrite tailings in shake flask and the effect of different citric acid concentrations and slurry densities on leaching tailings are studied. The results show that the concentration of citric acid in a certain range can promote chalcopyrite tailings bioleaching, and the highest of leaching rate is 44.8%. The citric acid concentration and slurry density directly affect the oxidation activity of bacteria and the effect of leaching. |
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| Keywords: | chalcopyrite tailings bioleaching citric acid concentration slurry density |
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