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E-pH diagram of ZnS-H2O system during high pressure leaching of zinc sulfide MU Wang-zhong(牟望重), ZHANG Ting-an(张廷安), LIU Yan(刘 燕), GU Yan(古 岩), DOU Zhi-he(豆志河), L? Guo-zhi(吕国志), BAO Li(鲍 丽..., the stable regions of S and Zn(II) in the E-pH diagrams become gradually larger, but the amplification decreases over 150 °C. The impacts of leaching parameters, such as temperature, liquid to solid ratio......
J. Cent. South Univ. Technol. (2009) 16: 0410-0415 DOI: 10.1007/s11771-009-0069-4 Kinetics of nickel leaching from roasting-dissolving residue of spent catalyst with sulfuric acid FENG Qi-ming...; Abstract: Sulfuric acid leaching......
Chemical leaching mechanism of chalcopyrite with difference mineralizationJing Bai,Jian-Kang Wen,Song-Tao Huang,Biao WuNational Engineering Laboratory of Biohydrometallury, General Research Institute for Nonferrous Metals摘 要:This paper presents the effect of mineralization on chalcopyrite chemical leaching in very simple H2SO4 solution systems at pH 1.0......
Kinetics of leaching refractory gold ores by ultrasonic-assisted electro-chlorinationPing Zhu1), Xin-jiong Zhang1), Kun-fang Li1), Guang-ren Qian1), and Ming Zhou2) 1) College of Environmental...="ChDivSummary">The resources of refractory gold ores are abundant, and their effective treatment can bring good economic benefits. This paper in-vestigated the kinetics of leaching gold from refractory gold ores......
Accelerating column leaching trial on copper sulfide oreWANG Hongjianga,WU Aixianga,b,ZHOU Xunb,WANG Shaoyonga,and ZHANG Jieb a Civil and Environment Engineering School,University of Science... to accelerate leaching sulfide ore are large spraying intensity,manual oxygen supply,temperature control,and acclimated bacteria.The indoor experiment accelerating sulfide ore leaching detected......
="ChDivSummary">The effect and mechanism of microwave irradiation on vanadium leaching were studied via a comparison between microwave heating and conventional heating. The results show a synergistic effect of microwave irradiation and calcium fluoride(Ca F2) on the vanadium leaching efficiency. It is confirmed that the vanadium leaching process can be improved by microwave irradiation when Ca F2 is present......
Mixed rare earth concentrate leaching with HCl-AlCl3 solutionMei Li1,2,Xiao-Wei Zhang1,2,Zhao-Gang Liu1,Mi-Tang Wang2,Jia Liu2,Jian-Ping Yang21. College of Materials Science and Engineering, Beijing... and Application of Rare摘 要:A method of Baotou mixed rare earth concentrate leaching was investigated. According to the principle of complex leaching, the quadratic......
Kinetic study on pressure leaching of high iron sphalerite concentrate XIE Ke-qiang(谢克强)1, YANG Xian-wan(杨显万)1, WANG Ji-kun(王吉坤)2, YAN Jiang-feng(阎江峰)2, SHEN Qing-feng(沈庆峰)2 1. Faculty...; Abstract: The kinetics of pressure leaching high iron sphalerite concentrate was studied. The effects of agitation rate, temperature, oxygen partial pressure, initial acid concentration, particle size......
Article ID: 1003-6326(2005)03-0697-05 Kinetics of oxidative leaching of ocean polymetallic nodules in molten potassium hydroxide medium WANG Yun-shan(王云山), LI Zuo-hu(李佐虎), LI Hao-ran(李浩然) (National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100080, China) Abstract: The kinetics of oxidative leaching of ocean......
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