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Leaching process of rare earths from weathered crust elution-deposited rare earth ore TIAN Jun(田 君)1, 2, CHI Ru-an(池汝安)3, YIN Jing-qun(尹敬群)2 1. School of Resources Processing and Bioengineering...; Abstract: In order to strengthen the leaching procedure, the chemical processes of leaching rare earths (RE......
; 文献标识码:A Electro-generative mechanism for simultaneous leaching of chalcopyrite-MnO2 in presence of Acidithiobacillus thiooxidans XIAO Li1, 3, QIU Guan-zhou2, FANG Zheng1 (1...+, Fe2+ and Mn2+ ratio in the process of electro-generative simultaneous leaching (EGSL) and bio-electro-generative simultaneous leaching (BEGSL). The results show that the dissolved Cu2+ and Fe2+ ratios......
J. Cent. South Univ. (2018) 25: 2380-2386 DOI: https://doi.org/10.1007/s11771-018-3922-5 Leaching of chalcopyrite: An emphasis on effect of copper and iron ions YANG Cong-ren(杨聪仁)1, 2, JIAO Fen(焦芬... Abstract: Many researchers found that the Fe2+ together with less amount of Cu2+ can accelerate the leaching of chalcopyrite. In this work, the leaching of chalcopyrite with Cu2+ was investigated......
验条件如下: pH值1.0~2.0,常温,转速400 r/min,时间3.0 h,液固比L/S=6,活性炭浓度为80 g/L ,Fe3+浓度3~5 g/L,鼓入空气,考察硫脲浓度对金浸出率的影响,结果见图2. 图2 硫脲浓度对金浸出率影响 Fig. 2 Effect of thiourea concentration on Au leaching efficiency 从... 初始条件如下:pH值11.0~11.5,常温,转速400 r/min,液固比L/S=6,活性炭浓度为80 g/L,时间3.0 h,鼓入空气,考察非氰浸金剂多硫化物浓度对金浸出率的影响,结果见图3. 图3 多硫化物浓度对金浸出率影响 Fig. 3 Effect of polysulfide concentration on Au leaching efficiency 从图......
; 文章编号:1672-7207(2019)04-0939-07 Law of weakening mechanical properties of rare earth ore with leaching CHEN Xun1, QI Yan1, 2, YIN Shenghua1, LI Xiwen1, XIE Fangfang3, LIU... characteristics of rare earth ore during different leaching time, with the aid of self-made simulated leaching device, the direct shear test was carried out on the ore samples after different leaching time......
extraction from black shale by acidic oxidizing pressure leaching LI Cun-xiong, WEI Chang, LI Min-ting, FAN Gang, DENG Zhi-gan (School of Material and Metallurgical Engineering, Kunming University of Science and Technology,Kunming 650093, China) Abstract: The effect of ferrous sulfate on the leaching rate of vanadium by one step leaching process was carried out. The results show......
J. Cent. South Univ. Technol. (2010) 17: 765-769 DOI: 10.1007/s11771-010-0554-9 Extraction of valuable metals from low-grade nickeliferous laterite ore by reduction roasting-ammonia leaching method... nickeliferous laterite ore using a reduction roasting-ammonia leaching method. The reduction roasting-ammonia leaching experimental tests were chiefly introduced, by which fine coal was used......
J. Cent. South Univ. Technol. (2009) 16: 0936-0941 DOI: 10.1007/s11771-009-0156-6 Technological conditions and kinetics of leaching copper from complex copper oxide ore SUN Xi-liang(孙锡良)1, 2...; Abstract: The kinetic behavior of leaching copper from low grade copper oxide ore was investigated. The effects of leaching temperature, H2SO4......
)09-2929-07 Suspended roasting of high sulfur bauxite and leaching performance of roasted ore ZHAO Bo, CHEN Yanxin, JIU Shaowu, HAN Ding, YANG Pan (School of Materials and Mineral Resources, Xi..., the digestion temperature is 260 ℃; the digestion time is 60 min; the lime content is 9%; the caustic concentration is 236 g/L and the stripping liquid molecular ratio is 1.50; the relatively leaching ratio......
Trans. Nonferrous Met. Soc. China 24(2014) 257-262 Recovery of indium by acid leaching waste ITO target based on neural network Rui-di LI, Tie-chui YUAN, Wen-bo FAN, Zi-li QIU, Wen-jun SU, Nan-qian ZHONG State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China Received 4 June 2013; accepted 23 October 2013 Abstract: The optimized leaching techniques were studied......