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J. Cent. South Univ. Technol. (2011) 18: 1074-1079 DOI: 10.1007/s11771-011-0806-3 Extracting indium and preparing ferric oxide for soft magnetic ferrite materials from zinc calcine reduction... for soft magnetic ferrite material was developed. Using reduction lixivium from high-acid reductive leaching of zinc oxide calcine as raw solution, copper and indium were firstly recovered by iron powder......
on them in recent years. Leaching zinc sulphide concentrate by concentrate ammonium chloride has been used in industry[6]. YANG et al[7] researched the treatment of zinc oxide ore for producing zinc...J. Cent. South Univ. Technol. (2008) 15: 679-683 DOI: 10.1007/s11771-008-0126-4 Leaching kinetics of low grade zinc oxide ore in NH3-NH4Cl-H2O system WANG Rui-xiang(王瑞祥)1, 2, TANG Mo-tang(唐谟堂)1......
J. Cent. South Univ. (2017) 24: 2266-2274 DOI: https://doi.org/10.1007/s11771-017-3637-z Extracting reaction mechanism analysis of Zn and Si from zinc oxide ore by NaOH roasting method CHEN Bing(陈兵... Central South University Press and Springer-Verlag GmbH Germany 2017 Abstract: The orthogonal test was used to optimize the reaction conditions of roasting zinc oxide ore with NaOH aiming......
Indium recovery from zinc oxide flue dust by oxidative pressure leaching LI Xuan-hai(黎铉海)1, ZHANG Yan-juan(张燕娟)1, QIN Quan-lun(覃全伦)1, YANG Jian(阳 健)1, WEI Yan-song(韦岩松)2 1. School... 2009 ____________________________________________________________________________________________ Abstract: Indium was recovered from zinc oxide flue dust (ZOFD) with sulfuric acid by oxidative......
Leaching of low grade zinc oxide ores in Ida2--H2O system DOU Ai-chun, YANG Tian-zu, YANG Ji-xing, WU Jiang-hua, WANG An School of Metallurgical Science and Engineering, Central South University. Changsha 410083, China Received 31 March 2010; accepted 2 June 2011 Abstract: Ida2--H2O system (iminodiacetate aqueous solution) was used to leach a low grade zinc oxide ore for Zn extraction......
Pressure acid leaching of zinc sulfide concentrate GU Yan(古 岩), ZHANG Ting-an(张廷安), LIU Yan(刘 燕), MU Wang-zhong(牟望重), ZHANG Wei-guang(张伟光),DOU Zhi-he(豆志河), JIANG Xiao-li(蒋孝丽) Key...; accepted 30 December 2009 ____________________________________________________________________________________________ Abstract: Effects of particle size of the zinc sulfide concentrate, leaching......
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contained in the spent catalyst was powerful, part of zinc was still adsorbed in the pores of activated carbon and it was hardly to be desorbed completely. Otherwise, the zinc oxide discomposed from... increased the effective contact area between leaching agent and spent catalyst. When the microwave pretreated temperature reached a certain value, zinc acetate was decomposed into zinc oxide gradually......
% silica dissolution are obtained. The main minerals in leaching residue are quartz and small amounts of undissolved oxide minerals of iron, lead and aluminum are associated with quartz. Key words: zinc... sulfide ores because sulfides are easy to separate from gangue and to concentrate by conventional flotation techniques. With declining of global reserves of zinc sulfides as well as the restriction......
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......
