Feasibility study on heap bioleaching of chalcopyrite  

作　　者：Bo-Wei Chen Jian-Kang 

机构地区：[1]National Engineering Laboratory of Biohydrometallurgy,General Research Institute for Nonferrous Metals

出　　处：《Rare Metals》2013年第5期524-531,共8页稀有金属（英文版）

基　　金：supported by the National High Technology Research and Development Program (Nos. 2012AA061501, 2012AA061502);the National Natural Science Foundation of China (No. 50934002)

摘　　要：Bioleaching of chalcopyrite often encountered the formation of passivation layer, which inhibited the leaching process and resulted in a low leaching rate. This inhibitory effect can be eliminated by thermophilic biole- aching. The industrial test of BioCOP technology based on thermophiles was successfully completed, which confirmed the feasibility of chalcopyrite bioleaching. However, industrial leaching rate of chalcopyrite heap bioleaching is lower. This paper described the development status and industrial test of chalcopyrite heap bioleaching technology. The reasons for the lower efficiency of chalcopyrite heap bioleaching were analyzed. The strategies for successful chalcopyrite heap bioleaching were proposed.Bioleaching of chalcopyrite often encountered the formation of passivation layer, which inhibited the leaching process and resulted in a low leaching rate. This inhibitory effect can be eliminated by thermophilic biole- aching. The industrial test of BioCOP technology based on thermophiles was successfully completed, which confirmed the feasibility of chalcopyrite bioleaching. However, industrial leaching rate of chalcopyrite heap bioleaching is lower. This paper described the development status and industrial test of chalcopyrite heap bioleaching technology. The reasons for the lower efficiency of chalcopyrite heap bioleaching were analyzed. The strategies for successful chalcopyrite heap bioleaching were proposed.

关 键 词：CHALCOPYRITE Heap bioleaching THERMOPHILES PYRITE FEASIBILITY 

分 类 号：TF811[冶金工程—有色金属冶金]