| 铜镍尾矿细菌浸出的试验研究 |
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| 引用本文： | 俞娟,杨洪英,佟琳琳,陈森.铜镍尾矿细菌浸出的试验研究[J].东北大学学报(自然科学版),2008,29(12):1746-1749. |
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| 作者姓名： | 俞娟 杨洪英 佟琳琳 陈森 |
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| 作者单位： | 东北大学材料与冶金学院,辽宁沈阳110004 |
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| 基金项目： | 国家自然科学基金资助项目(5067402950274024); 国家高技术研究发展计划项目(2006AA06Z127); 教育部高等学校博士学科点专项科研基金资助项目(20060145015); 辽宁省自然科学基金资助项目(20052030) |
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| 摘 要： | 通过正交试验研究了pH值、矿浆质量分数、矿石粒度、细菌接种量、表面活性剂吐温20用量对铜镍矿尾矿细菌浸出的影响.试验结果表明,铜浸出的最佳条件:pH值为1.5,矿石粒度为小于0.074 mm,接种量(体积分数)为50%以及不添加表面活性剂;镍浸出的最佳条件:pH值为1.0,矿石粒度为大于0.147mm,接种量(体积分数)为25%及不添加表面活性剂.细菌氧化后,铜和镍的浸出率分别达到63.41%和91.74%.
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| 关 键 词： | 尾矿 铜镍矿 细菌浸出 浸出率 铜 镍 正交试验 |
Experimental Investigation on Bio-leaching Cu-Ni Ore Tailings |
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| YU Juan,YANG Hong-ying,TONG Lin-lin,CHEN Sen.Experimental Investigation on Bio-leaching Cu-Ni Ore Tailings[J].Journal of Northeastern University(Natural Science),2008,29(12):1746-1749. |
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| Authors: | YU Juan YANG Hong-ying TONG Lin-lin CHEN Sen |
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| Institution: | YU Juan,YANG Hong-ying,TONG Lin-lin,CHEN Sen(School of Materials & Metallurgy,Northeastern University,Shenyang 110004,China.) |
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| Abstract: | The effects of pH value,mass fraction of pulp,ore particle size,inoculation concentration and dose of the surfactant Tween 20 on the bio-leaching rates of copper and nickel in Cu-Ni ore tailings were investigated through orthogonal test.The experimental results showed that the optimum conditions for copper extraction by bio-oxidation of Cu-Ni ore tailings are pH value 1.5,particle size less than 0.074 mm,inoculation concentration 50%,with no use of the surfactant Tween 20.And the optimum conditions for nick... |
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| Keywords: | tailing Cu-Ni ore bio-leaching leaching rate copper nickel orthogonal test |
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