首页|Separation of Co(II) and Ni(II) from chloride leach solution of nickel laterite ore by solvent extraction with Cyanex 301
Separation of Co(II) and Ni(II) from chloride leach solution of nickel laterite ore by solvent extraction with Cyanex 301
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NSTL
Elsevier
A hydrometallurgical process was developed to recover Co(II) and Ni(II) from the chloride leach liquor of laterite ore. Most of Co(II) and Ni(II) together with a small amount of A1(III) were selectively extracted over other elements by Cyanex 301 from the feed solution at pH 1 which contained Co(II), Ni(II), Al(III), Ca(II), Mg(II) and Mn(II). From the loaded Cyanex 301, Co(II) and Al(lll) were selectively stripped by 3 M HCl solution, and then Ni(II) was completely stripped by 10 M HCl solution. The McCabe-Thiele plots for the extraction and stripping isotherms were constructed. Batch simulation experiments for the counter-current extraction and stripping indicated that the recovery percentage of Co(II) and Ni(II) was 92.6 and 95.7%, respectively. Moreover, the purity of Ni(II) in the stripping solution was reached 99.5%. A process flowsheet for the recovery of Co(II) and Ni(II) from the laterite leach liquor was proposed. (C) 2017 Elsevier B.V. All rights reserved.
NickelCobaltCyanex 301RecoveryLaterite ore
Lee, Man Seung、Wang, Ling Yun
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Mokpo Natl Univ, Inst Rare Met, Dept Adv Mat Sci & Engn, Channam 534729, South Korea
NSTL
Elsevier
