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Study on Behavior and Mechanism of Extraction of Palladium(Ⅱ)with Unsymmetrical Sulfoxide BSO
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    Abstract:

    The behavior and mechanism of extraction of Palladium(Ⅱ)with unsymmetrical sulfoxide BSO were studied. The results show that the percentage extraction of Pd(Ⅱ) achieves 99.8% from 0.1 mol·L-1 HCl media with 0.3 mol·L-1 BSO-kerosene (their phase ratio 1:1) as an extractant after 5 min extraction vibration. The structure of the complex was discussed by slope analysis method and FT-IR spectra. When HCl concentration is less than 0.3 mol·L-1, BSO acts as a neutral ligand coordinated with Pd(Ⅱ) and the composition of complex is [PdCl2·2BSO](0). When HCl concentration ranges from 1.0 mol·L-1 to 4.0 mol·L-1 , the reaction of extracting of Pd(Ⅱ) is acid ion association extraction and the composition of complex may be [H+·hH2O·(BSO)2]2·[PdCl42- ] (0)

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[Chen Zhuhui, Gu Guobang, Liu Lin, Xu Zhiguang, Wu Songpin. Study on Behavior and Mechanism of Extraction of Palladium(Ⅱ)with Unsymmetrical Sulfoxide BSO[J]. Rare Metal Materials and Engineering,2012,41(8):1367~1370.]
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  • Received:August 16,2011
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