화학공학소재연구정보센터
Journal of Industrial and Engineering Chemistry, Vol.31, 118-123, November, 2015
Solvent extraction of vanadium(V) from sulfate solutions using LIX 63 and PC 88A
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Extraction of V(V) by LIX 63 and PC 88A was investigated from sulfate solutions under initial pH 1.2-6. Equilibrium pH had a profound effect on the extraction of V(V) by the two extractants. The extraction of V(V) by PC 88A occurred by a cationic exchange, while that by LIX 63 changed as the equilibrium pH increased. The cationic exchange reaction of VO2 + by LIX 63 occurred at pH < 2.5, while solvating reaction occurred in the equilibrium pH range of 2.5-5.4. The extraction reactions of V(V) by PC 88A and LIX 63 were identified by applying a slope method.
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