Results 241 to 250 of about 19,355 (297)

Binary Extraction in Hydrometallurgy

Mineral Processing and Extractive Metallurgy Review, 2000
Abstract Results obtained during technological application of binary extraction (extraction by salts of organic acids and organic bases) for recovery and separation of non-ferrous, rare, noble and associated metals are presented in the paper. The method of extraction of copper, especially from leaching solutions of oxidised ores, with the use of ...
G. L. Pashkov, A.I. Kholkin, Vera V. Belova   +2 more
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A short history of hydrometallurgy

Hydrometallurgy, 2005
Thousands 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, 1998
In 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, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
A. Aláčová, E. Godočíková, Marcela Achimovičová, Jana Ficeriová, Peter Baláž   +4 more
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Minimizing the Hydro in Hydrometallurgy

2018
One 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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Novel approach to recycling of valuable metals from spent lithium-ion batteries using hydrometallurgy, focused on preferential extraction of lithium

Journal of Cleaner Production, 2023
Jialin Qing, Xinsheng Wu, Li Zeng, Wenjuan Guan, Zuo-ying Cao, Qing-gang Li, Mingyu Wang, Guiqing Zhang, Shengxi Wu   +8 more
semanticscholar   +1 more source

Solvent Extraction in Hydrometallurgy

2004
The 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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Recent Developments in Pressnre Hydrometallurgy

International Materials Reviews, 1966
AbstractThe 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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Highly efficient recovery of waste LiNi_xCo_yMn_zO_2 cathode materials using a process involving pyrometallurgy and hydrometallurgy

Frontiers of Environmental Science and Engineering, 2023
Tianwei Zhang, Juanye Dao, Jinsong Wang, Yu-zhong Guo, Rundong Wan, Chengping Li, Xian Zhou, Zhengfu Zhang   +7 more
semanticscholar   +1 more source

Extraction columns in hydrometallurgy

Hydrometallurgy, 2005
Extraction 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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