共搜索到6967条信息,每页显示10条信息,共697页。用时:0小时0分0秒401毫秒
Mechanism of electro-generating leaching of chalcopyrite-MnO2 in presence of Acidithiobacillus thiooxidans XIAO Li(肖 利)1, 2, LIU Jian-she(柳建设)3, FANG Zheng(方 正)1, QIU Guan-zhou(邱冠周)4 1. School... minerals in the electro-generating leaching(EGL) and the bio-electro-generating leaching(BEGL), respectively. The results showed that the dissolution rates for Cu2+ and Fe2+ in BEGL were almost 2 times......
J. Cent. South Univ. (2016) 23: 2935-2940 DOI: 10.1007/s11771-016-3357-9 Nonlinear chaotic characteristic in leaching process and prediction of leaching cycle period LIU Chao(刘超), WU Ai-xiang(吴爱祥... 100083, China Central South University Press and Springer-Verlag Berlin Heidelberg 2016 Abstract: A laboratory leaching experiment with samples of different grades was carried out, and an analytical......
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......
ores; magnesium; carbonatation; leaching; kinetics ____________________________________________________________________________________________ 1 Introduction Nickel laterite ores are formed... enriched, and the content of nickel oxide is improved from 1.41% to 2.96%. 3) The leaching kinetics of desiliconization slag in carbonatation process was investigated. The carbonatation leaching process......
......
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......
Silver dissolution in a novel leaching system: Reaction kinetics studyLi Xiao1,2,Pei-wei Han1,Yong-liang Wang1,Guo-yan Fu1,2,Zhi Sun1,Shu-feng Ye11. State Key Laboratory of Multiphase Complex Systems... thiosulfate-potassium ferricyanide leaching system. The reaction kinetics of silver dissolution in this system was investigated via the rotating disk electrode technology. The influences of important parameters......
Effect of mechanical activation on alkali leaching of chromite ore ZHANG Yang(张 洋)1, 2, ZHENG Shi-li(郑诗礼)1, DU Hao(杜 浩)1, XU Hong-bin(徐红彬)1, ZHANG Yi(张 懿)1 1. National Engineering Laboratory.... It is observed that the extraction ratio reaches 97% after leaching for 200 min when chromite ore is mechanically activated for 10 min, but only 34% if not activated. Mechanical activation can decrease......
for chalcopyrite leaching. Key words: chalcopyrite; kinetics; pressure oxidation; sodium chloride hydroxide medium; leaching  ..., DVORSCIKOVA J, LVANOVA Z. Sulphuric acid chalcopyrite leaching using ozone as oxidant [J]. Metal1, 1999, 53(1/2): 57-60. [11] ANTONIJEVIC M M, JANKOVIC Z D, DIMITRIJERIC M D. Kinetics of chalcopyrite......
; Abstract: The leaching kinetics of Tang-dan refractory low grade... kJ/mol. An equation was also proposed to describe the leaching kinetics. Key words: leaching kinetics; ammonia; ammonium chloride; low grade copper ore  ......