| 含砷低品位硫化铜矿生物堆浸工业试验 |
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| 引用本文： | 温建康,姚国成,武名麟,阮仁满,陈景河,邹来昌.含砷低品位硫化铜矿生物堆浸工业试验[J].北京科技大学学报,2010,32(4). |
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| 作者姓名： | 温建康 姚国成 武名麟 阮仁满 陈景河 邹来昌 |
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| 作者单位： | 1. 北京有色金属研究总院生物冶金国家工程实验室,北京,100088
2. 紫金矿业集团股份有限公司,上杭,364200 |
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| 基金项目： | “十五”国家科技攻关计划资助项目(No.2004BA615A-14);;国家重点基础研究发展计划资助项目(No.2004CB619205) |
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| 摘 要： | 福建紫金山含砷低品位硫化铜矿年产300tCu和1000tCu生物堆浸工业试验结果表明:铜浸出率随着矿石粒度的减小而提高,矿石粒度为-30mm,浸出周期为270d,铜的浸出率达到80.58%;铜萃取率和电积电流效率随着浸出液pH值的降低和电积液中铁的质量浓度的增加而降低,当浸出液pH值下降到1.19时,铜萃取率下降到了50%;通过增加堆高、定期中和萃余液、增加负载有机相洗涤和活性炭+沙滤+气浮塔脱除电积原液中有机物等工艺改进后,降低了萃取剂、煤油和电能的消耗量,提高了铜的浸出速率,浸出周期为200d,铜浸出率为81.31%,铜萃取--电积的耗电量为2679.98kW.h.t-1,高纯阴极铜生产成本1.05万元.t-1.
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| 关 键 词： | 硫化铜矿 生物堆浸 萃取--电积 工业试验 紫金山铜矿 |
Industrial heap bioleaching of arsenic-bearing low-grade copper sulfide ore |
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| WEN Jian-kang,YAO Guo-cheng,WU Ming-lin,RUAN Ren-man,CHEN Jing-he,ZOU Lai-chang.Industrial heap bioleaching of arsenic-bearing low-grade copper sulfide ore[J].Journal of University of Science and Technology Beijing,2010,32(4). |
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| Authors: | WEN Jian-kang YAO Guo-cheng WU Ming-lin RUAN Ren-man CHEN Jing-he ZOU Lai-chang |
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| Abstract: | Industrial heap bioleaching tests of 300 t Cu and 1000 t Cu per year were done for low-grade copper sulfide ore bearing arsenic from Zijinshan Copper Mine in Fujian Province,China.The results of the industrial tests indicate that the copper leaching rate increases with the decrease of ore grain size and the leaching rate of 80.58% is obtained during the leaching cycle of 270 d at the particle size of-30 mm.The copper extraction rate and electrowinning current efficiency reduce with the decrease in pH values... |
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| Keywords: | copper sulfide ore heap bioleaching solvent extraction-electrowinning industrial test |
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