pH对黄铜矿细菌浸铜的影响  

Effect of pH Value on Bioleaching of Chalcopyrite

作　　者：马鹏程 杨洪英[2] 王路平 杨培根 刘慧 

机构地区：[1]招金矿业股份有限公司,山东招远265400 [2]东北大学材料与冶金学院,沈阳110004

出　　处：《有色金属（冶炼部分）》2015年第3期1-4,共4页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家自然科学基金资助项目(51174062);国家高技术研究发展计划项目(2012AA061502)

摘　　要：通过摇瓶试验考察初始pH对黄铜矿细菌浸出的影响。结果表明,在初始pH为1.2～1.6时,细菌活性较好,亚铁离子的氧化速率快;初始pH为1.4时细菌对黄铜矿的浸出体系适应性较好;pH为1.2～1.4的浸出体系中黄钾铁钒生成量较少,铜浸出率较高,矿浆pH也是控制黄钾铁钒沉淀生成的主要因素。The effects of initial pH values on bioleaching of chalcopyrite were investigated in shaking flasks. The results show that better bacterial activity and fast oxidizing ratio of ferrous ion are obtained with pH value of 1.2～1.6. Bacterium has better adaptation at initial pH value of 1.4. Fewer jarosite is produced and higher copper leaching rate is obtained with initial pH value of 1.2～1.4. pH value is the key factor to control jarosite sediment.

关 键 词：PH 黄铜矿 细菌浸出 吸附 黄钾铁钒 

分 类 号：TF811[冶金工程—有色金属冶金]