催化条件下低品位原生硫化铜矿细菌槽浸研究  

Research on Vat 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》2011年第1期75-77,127,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+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。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.

关 键 词：细菌浸出 低品位原生硫化铜矿 槽浸 催化效应 

分 类 号：TD952.1[矿业工程—选矿]