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《Journal of Northeastern University(Natural Science)》 2001-03
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Functions of Ferric Irons on the Bioleaching of Sulfide Minerals

LI Xiu yan, ZHOU Jian min, WEI De zhou , ZHENG Long xi (School of Resource & Civil Engineering, Northeastern University,Shenyang 110004,China)  
The functions of ferric irons on the bioleaching of sulfide minerals using Thiobacillus ferrooxidans were discussed. In the initial stage of the bioleaching, when the bacteria are not active, the chemical oxidation of ferric irons to the solid sulfide minerals is primary; While in the whole course of the bioleaching, it is very limited; ferric irons inhibit the bacterial activity, lower the oxidational ability of the bacteria to ferrous irons in the liquid phase; ferric irons and their precipitations reduce the quantities of the attached bacteria and their activity, and have bad influence on the direct bioleaching action.
【Fund】: 国家自然科学基金!资助项目 ( 5 97740 10 )
【CateGory Index】: TF111.3
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