Effect of alkyl chain length of o-hydroxyoxime on the extraction of copper.
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概要
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The solvent extraction of copper by use of the homologous series of o-hydroxyoxime with different alkyl chains was studied to elucidate the extraction mechanism. The physicochemical properties of hydroxyoxime required to evaluate the extraction rate, such as the distribution constant, interfacial properties, pKa and extraction constant, were measured. The forward and stripping extraction rates were measured by a Lewis-type transfer cell. The extraction rate of copper by a water-soluble, surface-inactive agent can be reasonably interpreted by considering the diffusion process with complex formation in the aqueous stagnant layer. Complex formation is limited by the rate of 1:1 complex formation. On the other hand, the extraction rate with an insoluble, surface-active reagent can be interpreted by the interfacial reaction, which is limited by the reaction rate between the adsorbed 1:1 complex and the dissolved reagent in the aqueous phase.
- 公益社団法人 化学工学会の論文
著者
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KATAYAMA Yuji
Department of Applied Chemistly, Faculty of Engineering, Kansai University
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Teramoto Masaaki
Department Of Chemistry And Material Technology Kyoto Institute Of Technology
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Miyake Yoshikazu
Department Of Chemical Energy And Environmental Engineering Faculty Of Environmental And Urban Engin
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KATAYAMA YUJI
Department of Industrial Chemistry, Kyoto Institute of Technology
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MIYAKE YOSHIKAZU
Department of Industrial Chemistry, Kyoto Institute of Technology
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IMANISHI YASUNOBU
Department of Industrial Chemistry, Kyoto Institute of Technology
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HAMATANI TOSHITSUGU
Department of Industrial Chemistry, Kyoto Institute of Technology
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TERAMOTO MASAAKI
Department of Chemical Engineering, Kyoto University
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