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J. Cent. South Univ. Technol. (2008) 15: 824-829 DOI: 10.1007/s11771-008-0152-2 Selective leaching of chromium-containing slag by HCl YANG Zhi-hui(杨志辉), CHAI Li-yuan(柴立元), WANG Yun-yan(王云燕... of Cr(Ⅵ) concentration leached out from chromium-containing slag with HCl as leaching agent, and to study influences of pH, ratio of solid mass to solution volume, flow velocity and temperature on Cr......
Study of spent battery material leaching process LI Jin-hui(李金辉)1, 2, LI Xin-hai(李新海)1, ZHANG Yun-he(张云河)1, HU Qi-yang(胡启阳)1, WANG Zhi-xing(王志兴)1, ZHOU You-yuan(周友元)1, FU Fang-ming(符芳铭)1 1... of 120 μm for the exhausted scraps, molar ratio of H2O2 to MeS of 2, leaching temperature about 60 ℃, ratio of liquid to solid of 8, and leaching time of 2 h. The NixCoyMnz precursor for cathode material......
. Leaching gold ores by lime-sulphur- synthetic-solution with alkali-catalyzed process[J]. Chinese Journal of Rare Metals, 2013, 37(1): 123-129. [16] 袁金华, 王有乐. 清水充氧实验中饱和溶解氧值确定方法的探讨[J]. 水资源保护, 2008, 24(2... is 0.40V, which indicates that theoretically oxygen in the air is an economical oxidant for alkali thiourea Au-leaching system. The use of oxygen as oxidant is negatively impacted due to the low......
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Pressure leaching technique of smelter dust with high-copper and high-arsenic XU Zhi-feng(徐志峰), LI Qiang(李 强), NIE Hua-ping(聂华平) School of Materials and Chemical Engineering, Jiangxi... _____________________________________________________________________________________________________ Abstract: The application of pressure leaching technology in the treatment of high-copper and high-arsenic dust was studied. The pressure leaching technique was determined as follows......
Evolvement of permeability of ore granular media during heap leaching based on image analysis YANG Bao-hua(杨保华)1, 2, WU Ai-xiang(吴爱祥)3, JIANG Huai-chun(江怀春)4, CHEN Xue-song(陈学松)1 1. School...; Abstract: The column leaching experiment of ore granular media was carried out with the home-made multi-functional experimental apparatus and the pore structure......
J. Cent. South Univ. Technol. (2010) 17: 924-929 DOI: 10.1007/s11771-010-0578-1 Wettability and surfactivity of sodium phosphate surfactants in strong alkali solutions CHEN Sheng-hui(陈胜慧)1, 2.... A complex alkali resistant phosphate surfactant with good permeability was prepared. The wettability of surfactants was investigated by measuring the immersion time, sinking time and capillary effects......
process, the effects of alkali-to-dust ratio, sodium sulfide addition, leaching temperature, leaching time and liquid-to-solid ratio on metals leaching efficiencies were investigated. The results show that the arsenic can be effectively separated from other metals under the optimum conditions of alkali/dust mass ratio of 0.5, sodium sulfide addition of 0.25 g/g, leaching temperature of 90 °C, leaching......
on leaching process of sintered powder in extracting alumina from fly ash SUN Pei-mei, TONG Jun-wu, XU Hong-yan, ZHAO Zhe, XUE Bing, ZHANG Jiao-yang (School of Chemical and Environmental Engineering, China University of Mining and Technology(Beijing), Beijing 100083, China) Abstract: The Na2CO3 solution leaching process of sintered powder obtained from sintering process of fly ash and limestone......
