低品位次生硫化铜矿的细菌浸出研究  

The Research of Bioleaching Low Grade Secondary Copper Sulphide Ore

作　　者：路殿坤[1] 蒋开喜[2] 王春[2] 刘大星[2] 

机构地区：[1]东北大学,沈阳110006 [2]北京矿冶研究总院,北京100044

出　　处：《有色金属（冶炼部分）》2002年第5期2-5,共4页Nonferrous Metals（Extractive Metallurgy)

摘　　要：在硫酸体系中 ,对含有辉铜矿、蓝辉铜矿和铜蓝的低品位次生硫化铜矿的Fe3+ 浸出和细菌浸出进行了研究 ,通过对浸出过程的动力学进行分析 ,揭示了次生硫化铜矿的浸出过程和细菌浸出的作用机理 ,得出了细菌浸铜主要以间接机理进行的结论 ,提出了加快铜浸出速率的 2条途径。The leaching behavior of low grade copper sulphide ore containing chalcocite, digenite and covellite using Fe 3+ and bacteria in sulfuric acid aqueous solution has been researched. The detailed leaching process and bacteria leaching mechanism of low grade secondary copper sulphide ore have been demonstrated after dynamic study. The results show that the bioleaching of copper sulphide is mainly by indirect mechanism. According to the research, two paths for increasing copper leaching rate are presented.

关 键 词：低品位次生硫化铜矿 辉铜矿 铜蓝 细菌浸出 动力学 氧化还原电位 

分 类 号：TF811[冶金工程—有色金属冶金] TF18