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Effect of high intensity conditioning on aggregate size of fine sphalerite SUN Wei(孙 伟), XIE Ze-jun(谢泽军), HU Yue-hua(胡岳华), DENG Mei-jiao(邓美姣), YI Luan(易 峦), HE Guo-yong(何国勇) School of Mineral... of fine sulphide particle flotation. The effect of impeller design, mechanical energy input, and agitation speed on aggregate size of fine sphalerite was tested. The aggregate size of fine sphalerite......
for the bio-electro-generative leaching was set up. The effects of grain size and temperature on rate of zinc extraction from sphalerite under the conditions of presence and absence... is an important part of the output electric quantity. Key words: sphalerite mineral; electro-generative leaching; bio-oxidation; activation energy  ......
system was applied to study anodic and cathodic self-corrosion current, which was inappreciably compared with the galvanic current between sphalerite and MnO2. The accumulated sulfur on the surface...-leaching; sphalerite 闪锌矿是自然界中常见的硫化矿,闪锌矿的浸出过程实质上是矿物与氧化剂之间的放热氧化还原反应.采用发电浸出技术,硫化矿解离......
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with sphalerite concentrate as a reducing agent was performed. It was found that leaching of zinc ferrite in the presence of sphalerit concentrate was a viable process that effectively extracted zinc and indium... presented lower extraction values. Key words: reductive leaching; zinc ferrite; zinc; indium; sphalerite concentrate 1 Introduction Indium is an important metal used in electrical industries......
标识码: A Selective adsorption of Nocardia on surface of pyrite and sphalerite WEI De-zhou1, SHEN Yan-bai1, LI Xiao-an2, ZHU Yi-min1, JIA Chun-yun1, SU Xiu-juan1, QIN Yu-chun1 (1. School...: The selective adsorption of Nocardia on the surface of pyrite and sphalerite was studied under various conditions. The results show that the maximum growth quantity of Nocardia can be achieved after......
Bioleaching of Zn(Ⅱ) and Pb(Ⅱ) from Nigerian sphalerite and galena ores by mixed culture of acidophilic bacteria Alafara A. BABA1, Folahan A. ADEKOLA1, Rasaq F. ATATA2, Risikat N. AHMED3, Sandeep... November 2010; accepted 25 August 2011 Abstract: Zn(Ⅱ) and Pb(Ⅱ) from Nigerian sphalerite and galena ores were bioleached by a mixed culture of acidophilic bacteria. The influences of pH and ferric......
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高铁闪锌矿精矿高氧催化氧化氨浸工艺试验王书民1,2,樊雪梅2,张国春2,郑行望-1(1.陕西省西安市陕西师范大学化学与材料科学学院2.陕西省商洛市商洛学院化学与化学工程系)摘 要:采用L25(56)正交设计表,研究高铁闪锌矿精矿高氧催化氧化氨浸工艺的最佳工艺条件.结果表明,在25℃,氧分压为600kPa,液固比为7.0条件下,以碳铵-氨水-双氧水-催化剂体系氧化浸出高铁闪锌矿精矿8h,锌,铜,镉的浸出率分别可以达到93%,94%,91%,浸取液中不含铁.关键词:冶金技术; 铁闪锌矿; 催化氧化; ......
Effect of vacancy defects on electronic properties and activation of sphalerite (110) surface by first-principles CHEN Jian-hua(陈建华)1, CHEN Ye(陈 晔)2, LI Yu-qiong(李玉琼)2 1. College of Resources...: The electronic properties of sphalerite (110) surface with Zn-vacancy and S-vacancy were calculated by using density-functional theory, and the effects of vacancy defect on the copper activation of sphalerite were......