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The extraction of palladium(Ⅱ) from acidic media with cyclic sulfoxide deriva-tive-α-octyl-tetrahydrothiophene-Ⅰ-oxide (OTMSO) was investigated. The extraction efficiency of palla-dium(Ⅱ) with OTMSO is 97.1% at 0.3mol·L~(-1) OTMSO. The plots of the extraction efficiency for palla-dium(Ⅲ) appear to lie on a convex curve having a minimum of extraction efficiency at 1-2 mol·L~(-1) HCl. Theextraction reaction of palladium(Ⅱ) with OTMSO is endothermic, and ΔH_(OTMSO)~=12.2kJ·mol~(-1). The coor-dination number was studied with slope method. The result indicates that coordination number is 2. FT-IRspectra were used to analyze the structure of complex and coordinated atom in complex. Pd is coordinated withboth oxygen and sulfur atom in S=O group in OTMSO. The situation and intensity of peaks contributed bycomplex prepared from various acidity were different. The recovery of palladium(Ⅱ) with OTMSO from scrapcontaining palladium was discussed. After silver and bismuth were removed, the feed solution w
The extraction of palladium (II) with acidic medium with cyclic sulfoxide deriva-tive-α-octyl-tetrahydrothiophene-I-oxide (OTMSO) was investigated. The extraction efficiency of palla-dium · L -1 (-1) OTMSO. The plots of the extraction efficiency for palla-dium (Ⅲ) appear to lie on a convex curve having a minimum of extraction efficiency at 1-2 mol·L -1 HCl. Theextraction The coor-dination number was studied with the slope method. The result indicates that the coordination number is 2. FT- IRspectra were used to analyze the structure of complex and coordinated atom in complex. Pd is coordinated withboth oxygen and sulfur atom in S = O group in OTMSO. The situation and intensity of peaks contributed by complex prepared from various acidity were different. The recovery of palladium (II) with OTMSO from scrapcontaining palladium was discussed. After silver and bismuth were remo ved, the feed solution w