催化条件下低品位原生硫化铜矿的搅拌细菌浸出  

Agitation Bioleaching of Low-grade Primary Copper Sulfide Ore under Catalysis Conditions

作　　者：张卫民[1,2] 谷士飞 孙占学[1,2] 

机构地区：[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　　处：《金属矿山》2009年第4期40-42,49,共4页Metal Mine

基　　金：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)

摘　　要：以活性炭、Ag+及Fe2+为组合催化剂,研究了催化条件下永平铜矿低品位原生硫化铜矿的搅拌细菌浸出效果。试验结果表明:催化条件下永平低品位原生硫化铜矿的搅拌细菌浸出效果良好,但搅拌速度对浸出有较大的影响。搅拌速度为240r/min时,浸出456h后铜的浸出率可达83%。酸化液可以代替9K+S培养基作为溶浸剂。用酸化液作溶浸剂时,浸出335h后铜的浸出率可达81.58%,比用9K+S培养基作溶浸剂时高出6个多百分点。Activated carbon, Ag ^＋ and Fe^2＋ were used as a combined catalyst. The bioleaching effect for low-grade primary copper sulfide ore from Yongping Copper Mine under catalysis conditions was investigated through an agitation leaching test. Good results were achieved and the agitation speed had a great effect on the leaching＇. At a 240 r/min agitation speed, the 456 h leaching rate of copper reached 83%. Acid-treated solution can replace 9K ＋ S medium as leaching agent, which can achieve a 335 h copper leaching rate of 81.58%, more than 6 percentage points higher than that when 9K ＋ S medium is used.

关 键 词：低品位原生硫化铜矿 细菌浸出 搅拌浸出 催化 

分 类 号：TD952.1[矿业工程—选矿] TF811[冶金工程—有色金属冶金]