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and mineral dissolution, ancient fluids in the minerals are observed to be a new source of metal ions. In this study, significant amounts of ancient fluids were found to exist in Cu–Zn sulfide..., this concentration was 0.62 × 10-6mol/L and 0.44 × 10-6 mol/L, respectively. As a result, the ancient fluid is a significant source of copper ions compared to mineral dissolution under the same experimental......
Trans. Nonferrous Met. Soc. China 31(2021) 1103-1112 Separation and recovery of copper in Cu-As-bearing copper electrorefining black slime by oxidation acid leaching and sulfide precipitation Mei... conditions using sulfide-to-copper ratio of 2.4:1, time of 1.5 h and temperature of 25 °C. Key words: copper electrorefining black slime; oxidation acid leaching; selective sulfide precipitation; leaching......
oxide could be leached out easily and copper silicates are difficult to leach out. Part of the phase of copper containing sulfide can also be leached out. References [1] PEACEY J, GUO Xian-jian... Dissolution kinetics of low grade complex copper ore in ammonia-ammonium chloride solution LIU Wei(刘 维), TANG Mo-tang(唐谟堂), TANG Chao-bo(唐朝波), HE Jing(何 静), YANG Sheng-hai(杨声海),YANG Jian-guang(杨建......
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With the high speed of economic improvement, the demand of copper in the rapid rush is becoming more and more urgent, but the reserves of copper mineral resources are facing serious challenge nowadays... method to be mainly malachite, chrysocolla and bornite, corresponding to free copper, copper silicate and secondary copper sulfide, respectively. Gangue contains high-grade calcium magnesium carbonate......
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mineral dissolution in the presence of acidophilic microoganisms: Implications for heap bioleaching [J]. Hydrometallurgy, 2009, 96: 288-293. [12] WATLING H R. The bioleaching of nickel-copper sulfides... Leaching of nickel-molybdenum sulfide ore in membrane biological reactor CHEN Jia-wu1, 2, GAO Cong-jie1, ZHANG Qi-xiu1, XIAO Lian-sheng1, ZHANG Gui-qing1 1. School of Metallurgical Science......
J. Cent. South Univ. (2016) 23: 3284-3292 DOI: 10.1007/s11771-016-3394-4 Nonlinear characteristics of induced spontaneous combustion process of sulfide ores PAN Wei(潘伟)1, WU Chao(吴超)1, LI Zi-jun(李孜军... combustion tendency of sulfide ores, nine different sulfide ore samples were taken from a pyrite mine in China, and induced spontaneous combustion experiment was carried out in the laboratory. Different stages......
that the structure and electronic properties of sulfide minerals surfaces have been influenced in presence of H2O molecule. The adsorption of the flotation reagent at the interface of mineral-water would... reagent with sulfide mineral surface will attract more attention.Key words:sulfide minerals surfaces; H2O molecule; relaxation; electronic properties; density-functional theory (DFT) calculation......
