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Abstract Solvent extraction experiments were performed to separate Au(III), Pt(IV) and Pd(II) in the HCl concentration ranged from 0.5 to 9 M. Cyanex 272 extracted only Au(III) among the three metals,… Click to show full abstract
Abstract Solvent extraction experiments were performed to separate Au(III), Pt(IV) and Pd(II) in the HCl concentration ranged from 0.5 to 9 M. Cyanex 272 extracted only Au(III) among the three metals, while both Au(III) and Pd(II) was extracted by LIX 63 in the experimental ranges. The Au(III) in the loaded Cyanex 272 and LIX63 was stripped by either (NH4)2S2O3 or (NH2)2CS. The concentration ratio of Au(III) to Pd(II) affected the extraction behavior of Au(III) and Pd(II) by LIX 63. The characteristic vibration bands of Cyanex 272 and LIX 63 were proposed by analyzing the FT-IR.
Journal Title: Journal of Industrial and Engineering Chemistry
Year Published: 2017
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