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《Hydrometallurgy of China》 2012-01
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Experiment and Condition Optimization on Microbial Desulfurization of Sulfide Ore

WANG Hong-jiang1,LUO Fei-xia1,WU Ai-xiang1,ZHANG Xu1,AI Chun-ming1,CHEN Jia-sheng2,SHI Liang-gui2 (1.School of Civil and Environmental Engineering,University of Science and Technology Beijing,Beijing100083,China; 2.Tongling Chemical Industry Group Co.,Ltd.,Tongling244023,China)  
The content of sulfur in the sulfide ore can be decreased by microbial desulfurization.The effects of pH,inoculum concentration,pulp density and original Fe2+ concentration on desulfurization have been investigated by shake flask experiment.Regression analysis was used for solution potential and desulfurization degree.The results show that pH has the largest contribution to desulfurization.The optimization condition of microbial desulfurization were pH of 1.5,pulp density of 5%,original Fe2+ concentration of 0,inoculum concentration of 10%.At the conditions,the maximum expected value of solution potential was 804 mV,and desulfurization was 22.7%.
【Fund】: 国家自然科学基金资助项目(50774011);; 国家重点基础研究发展计划基金资助项目(2004CB619206);; 国家新世纪人才计划基金资助项目(NCET-07-0070)
【CateGory Index】: TD925.5
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