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자료유형
학술저널
저자정보
Lingyun Wang (Department of Advanced Materials Science & Engineering Institute of Rare Metal Mokpo National U) Man Seung Lee (Department of Advanced Materials Science & Engineering Mokpo National Universit)
저널정보
한국자원공학회 Geosystem Engineering Geosystem Engineering Vol.20 No.6
발행연도
2017.1
수록면
311 - 317 (7page)

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It is difficult to separate Co(II) and Ni(II) by extraction with single Cyanex 301 from acidic solution. The synergistic extraction of Co(II) over Ni(II) from aqueous chloride solutions was studied using a mixture of Cyanex 301 and LIX 63. A significant synergistic extraction of Co(II) with the synergistic enhancement factor of 191 was obtained by adding LIX 63 to Cyanex 301, while Ni(II) extraction was little affected. The highest separation factor of 10 was obtained at an optimum composition of the mixture. The extraction reactions with this mixture were proposed on the basis of slope analysis. The extracted species of Co(II) and Ni(II) was found to be Co(HA2)2·HB and Ni(HA2)2, respectively. Effective stripping of Co(II) and Ni(II) was attained by using different concentrations of HCl solution. It is feasible to apply this mixture for the separation of Co(II) and Ni(II) from the leach liquor of laterite ore.

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