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Chemical Processing: Hydrometallurgy
2016Innovative development of a sustainable hydrometallurgical process requires economic and environmental considerations, and the application of knowledge and experience gained in a variety of chemical processing steps. Over the past decades, technological innovations have occurred largely in changes to exploit lower grade ores and continually reduce the ...
Vaikuntam I. Lakshmanan +2 more
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A short history of hydrometallurgy
Hydrometallurgy, 2005Thousands of years ago people had learned how to build furnaces and use fire to melt rocks and produce metals but the use of aqueous solutions for ore processing came much later, mainly at the time of the alchemists when acids and alkalies became known and used. Modern hydrometallurgy, however, can be traced back to the end of the 19th century when two
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Separation methods in hydrometallurgy
JOM, 1998In this symposium, there was an emphasis to replace metal cementation methods, which are used in various hydrometallurgical processes for impurity removal, by selective solvent-extraction or ion-exchange methods. This may be due to the added advantage of these processes to recover impurity metal as a marketable by-product.
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Mechanochemistry in Hydrometallurgy of Sulfide Minerals
ChemInform, 2005AbstractFor Abstract see ChemInform Abstract in Full Text.
A. Aláčová +4 more
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Solvent Extraction in Hydrometallurgy
2004The use of solvent extraction as a unit operation in hydrometallurgy now extends to a wide range of metals from a variety of feed materials including low-grade ores, scrap and waste, and dilute aqueous solutions. The technology was pioneered in the 1940s for the extraction of uranium from its ores and, later, for the treatment of wastes from spent ...
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Minimizing the Hydro in Hydrometallurgy
2018One of Society’s major concerns with hydrometallurgical processing is the large amount of water that is quintessential to its nature. This is especially troubling in arid areas, where the population struggles to procure potable water for their daily needs.
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Jarosites and Their Application in Hydrometallurgy
Reviews in Mineralogy and Geochemistry, 2000The alunite supergroup consists of more than 40 minerals with the general formula DG 3( T O4)2(OH,H2O)6, wherein D represents cations with a coordination number greater or equal to 9, and G and T represent sites with octahedral and tetrahedral coordination, respectively (Smith et al. 1998). The supergroup is commonly subdivided into various groups, but
John E. Dutrizac, John L. Jambor
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Recent Developments in Pressnre Hydrometallurgy
International Materials Reviews, 1966AbstractThe basic advances in the field of inorganic chemistry made early in the 20th Century, the extremely rapid development of kinetic and thermodynamic information that followed, and the unprecedented progress of materials engineering since the second World War, have combined to bring pressure hydrometallurgy from the realm of theoretical ...
V. N. Mackiw, T. W. Benz, D. J. I. Evans
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Review of the hydrometallurgy of chalcopyrite concentrates
Canadian Metallurgical Quarterly, 1972AbstractA critical appraisal has been made of methods that have been proposed for the hydro metallurgical treatment of chalcopyrite concentrates. Those methods in which the primary breakdown of chalcopyrite is effected by leachants are discussed. Methods in which leaching is preceded by pyrometal-lurgical decomposition of the mineral include selective ...
K.N. Subramanian, P.H. Jennings
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Extraction columns in hydrometallurgy
Hydrometallurgy, 2005Extraction columns are highly efficient and can be used in hydrometallurgy with modern liquid ion exchangers exhibiting fast chemical kinetics. Zinc extraction with di(2-ethylhexyl) phosphoric acid refers as an example for a basic design involving mass transfer and reactive equilibria.
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