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자료유형
학술저널
저자정보
Chang Jun (College of Material and Chemical Engineering Tongren University Tongren P.R. China) Jia Fukang (College of Material and Chemical Engineering Tongren University Tongren P.R. China) Mumford Kathryn A. (Department of Chemical and Biomolecular Engineering The University of Melbourne Melbourne Austral) Yang Xiaohong (College of Material and Chemical Engineering Tongren University Tongren P.R. China) Xie Zinan (College of Material and Chemical Engineering Tongren University Tongren P.R. China)
저널정보
한국자원공학회 Geosystem Engineering Geosystem Engineering Vol.23 No.5
발행연도
2020.1
수록면
251 - 264 (14page)

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This work describes the separation of Ni and Co from a real feed solution in chloride media with high Ni content. The extractant used was P507 (2-ethylhexyl phosphoric acid-2-ethylhexyl ester) in a laboratory scale Impinging Stream–Rotating Packed Bed (IS-RPB) contactor. Key variables including feed solution pH, extractant concentration, saponification degree, high gravity level and total volumetric flow rate of fluids amongst other variables were examined. A McCabe–Thiele diagram of the extraction stage predicted that at a total volumetric flow rate of 90 L/h, feed solution pH of 5, saponified P507 concentration of 25% and high gravity of 83, almost 99% of cobalt, would be extracted within three stages. With regard to the scrubbing results, the co-extracted nickel was scrubbed efficiently from the loaded organic solution using a mixture of 0.02 M CoCl2 and 0.5 M hydrochloric acid solution, The purified Co solution was achieved after stripping the loaded-organic phase with 1 M HCl. The maximum value of the overall volumetric mass transfer coefficient for the IS-RPB extractor was found to be 0.16 s−1 which was superior to that of conventional extractors such as mixer-settler and centrifugal extractors, providing strong confidence for its industrial application.

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