Mechanochemistry in hydrometallurgy of sulphide minerals

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• 作者：Bal脙脙脙脙 ; P. ; Al脙脙脙脙ov脙脙 ; A. ; Achimovi脛脛ov脛脛 ; M. ; Ficeriov脙脙 ; J. ; Godo脛脛脛脛kov脛脛 ; E.
• 关键词：Mechanochemistry ; Hydrometallurgy ; Sulphide ; Zinc ; Bismuth ; Lead ; Nanocrystal
• 刊名：Hydrometallurgy
• 出版年：2005
• 期刊代码：38_0304386x
• 类别：ce
• 出版时间：April, 2005
• 卷：77
• 期：1-2
• 页码：9-17
• 文件大小：310 K

摘要

The paper handles with the impact of mechanochemistry on hydrometallurgy of sulphide minerals. Mechanochemistry is a branch of solid-state chemistry dealing with the processes which take place within solids as a result of the application of mechanical energy. The application of mechanochemistry to hydrometallurgy is illustrated with short theoretical background and selected examples involving selective leaching of Zn from sphalerite ZnS, Zn sorption on pyrrhotite Fe_1芒芒芒XS, acid leaching of ZnS nanoparticles and selective Bi leaching from PbS concentrate. It is demonstrated that mechanochemical treatment of the sulphides leads to increased reaction rate, improved leaching selectivity and sorption efficiency and shows the enhanced leachability of nanocrystals.