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《Journal of Chengdu University of Technology》 2001-02
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THE INFLUENCE OF VARIOUS METALLIC IONS ON THE BIOLEACHING OF COMPLEX METAL SULPHIDES

JIANG Jin long, WANG Mo hui, WANG Kang lin (Chengdu University of Technology, China)  
This paper studies the catalytic effect of various metallic ions (Ag +, Bi 3+ , Hg 2+ ) in the bioleaching of complex metal sulphides. The cations studied increase the copper and cobalt dissolution from complex metal sulphides , and Ag + is prominent with an extraction efficiency of 99.99% and 31.79%, respectively, compared with 30.27% and 19.10% recovery in the absence of a catalyst. The order of influence of different cations on the final recovery of Cu from the ore is Ag + Hg 2+ Bi 3+ . However, it is Ag + Bi 3+ Hg 2+ for Co. The difference of the catalytic effect of metallic ions (Ag +, Bi 3+ , Hg 2+ ) in the bioleaching is because the poison of metallic ions affects the living of bacteria.
【CateGory Index】: TF111.31
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