| 催化剂组合对低品位原生硫化铜矿细菌浸出的催化效应 |
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| 引用本文： | 张卫民,谷士飞,孙占学.催化剂组合对低品位原生硫化铜矿细菌浸出的催化效应[J].矿业研究与开发,2009(2):45-48. |
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| 作者姓名： | 张卫民 谷士飞 孙占学 |
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| 作者单位： | 核资源与环境教育部重点实验室（东华理工大学）;东华理工大学土木与环境工程学院;广西壮族自治区地质环境总站; |
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| 基金项目： | 科技部国际合作项目(2008DFA71760);;江西省教育厅重点科技资助项目(GJJ08294) |
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| 摘 要： | 通过摇瓶实验,研究了活性炭、Ag+及Fe2+组合对低品位原生硫化铜矿细菌浸出的催化效应。研究表明:在细菌浸出的初始阶段,添加活性炭、Ag+及Fe2+组合可以进一步提高铜的浸出速度及浸出率,其浸出效果比单独添加活性炭或Ag+要好,其中浸出效果最好的是3.0 g/L活性炭+2.0mg/L Ag++8.0 g/L Fe2+组合,在浸出168 h后,铜的浸出率可达到83%,其次是3.0 g/L活性炭+2.0 mg/L Ag+组合,浸出310 h后,铜的浸出率可达到80%。而单独添加3.0g/L活性炭或2.5 mg/L Ag+,在浸出310 h时,铜的浸出率分别为62%和20%。控制550~640 mV的低氧化还原电位条件有利于细菌浸出低品位原生硫化铜矿中的铜。
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| 关 键 词： | 细菌浸出 低品位原生硫化铜矿 活性炭 银离子 催化效应 |
Catalytic effect of the Combination of Catalysts on Bioleaching of Low-grade Primary Copper Sulfide Ore |
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| Zhang Weimin,Gu Shifei and Sun Zhanxue.Catalytic effect of the Combination of Catalysts on Bioleaching of Low-grade Primary Copper Sulfide Ore[J].Mining Research and Development,2009(2):45-48. |
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| Authors: | Zhang Weimin Gu Shifei and Sun Zhanxue |
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| Affiliation: | 1.Key Laboratory of Ministry of Education for Nuclear Resources and Environment;East China Institute of Technology;Nanchang;Jiangxi 330013;China;2.School of Civil and Environmental Engineering;Fuzhou;Jiangxi 344000;3.General Station of Geological Environment Monitoring of Guangxi Zhuang Autonomous Region;Guilin;Guangxi 541004;China |
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| Abstract: | Through shaking flasks experiment,the catalytic effect of the combination of activated carbon,Ag+and Fe2+on improving the bioleaching efficiency of the low-grade primary copper sulfide ores from Yongping Copper Mine was investigated.The results showed that the addition of the combination of activated carbon,Ag+and Fe2+could further accelerate the dissolution velocity and rate of copper at the initial stage of the bioleaching,and the leaching effect was better than that achieved when only activated carbon or... |
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| Keywords: | Bioleaching Low-grade primary copper sulfide ore Activated carbon Silver ion Catalytic effect |
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