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金属矿山 ›› 2011, Vol. 40 ›› Issue (1): 75-77.

• 矿物工程 • 上一篇    下一篇

催化条件下低品位原生硫化铜矿细菌槽浸研究

张卫民1,2,谷士飞3,孙占学1,2   

  1. 1.东华理工大学;2.核资源与环境教育部重点实验室;3.广西壮族自治区地质环境总站
  • 出版日期:2011-01-15 发布日期:2011-01-06
  • 基金资助:

    科技部国际合作项目(编号:2008DFA71760),江西省教育厅重点科技项目(编号:GJJ08294)

Research on Vat Bioleaching of Low-grade Primary Copper Sulfide Ore Under Catalysis Conditions

Zhang Weimin1,2,Gu Shifei3,Sun Zhanxue1,2   

  1. 1.East China Institute of Technology;2 Key Laboratory of Nuclear Resources and Environment
    of Ministry of Education; 3 Geological Environmental Monitoring Station of Guangxi Zhuangzu Autonomous Region
  • Online:2011-01-15 Published:2011-01-06

摘要: 以活性炭、Ag+及Fe2+组合为催化剂,研究了催化条件下永平铜矿低品位原生硫化铜矿细菌槽浸的效果。研究结果表明,催化条件下低品位原生硫化铜矿细菌槽浸的效果良好,但充气量对浸出有较大的影响,其中25 mL/s的充气量最有利于铜的浸出,在浸出455 h后,铜的浸出率可达47.1%。酸化液可以代替9K+S培养液作为溶浸剂,用酸化液作溶浸剂时,在浸出335 h后,铜的浸出率可达41.8%,比9K+S培养液作溶浸剂高出1.7个百分点以上。

关键词: 细菌浸出, 低品位原生硫化铜矿, 槽浸, 催化效应

Abstract: Taking activated carbon,Ag+and Fe2+ as a combined catalyst, the vat bioleaching effect of low-grade primary copper sulfide ore from Yongping Copper Mine under catalysis conditions was investigated. The results showed that the vat bioleaching effect of low-grade primary copper sulfide ore was significant, but the aeration quantity had a great effect on the leaching. The aeration quantity of 25 mL/s was most beneficial to the leaching of copper, in this case, the leaching rate of copper reached 42.4% after 455 h leaching. The acid-treated solution can replace 9K+S medium as leaching agent, in this case, the leaching rate of copper reached 41.8% after 335 h leaching, which was increased more than 1.7% by using the acid-treated solution instead of 9K+S medium.

Key words:  Bioleaching, Low-grade primary copper sulfide ore, Vat leaching, Catalytic effect