Abstract − Analytical Sciences, 15(4), 333 (1999).
Solvent Extraction of Transition Metals by an in situ Extractant Formation Method. Utilization of an Easily-Solidifying Solvent
Kaoru FUJINAGA*, Mihoko FUKAI, Yasushi SEIKE and Minoru OKUMURA
Department of Material Science, Faculty of Science and Engineering, Shimane University, Nishikawatsu, Matsue 690-8503, Japan
Carbon disulfide and pyrrolidine containing p-xylene was proved to be useful and convenient for metal extraction. The procedure involved forming pyrrolidine dithiocarbamic acid during the course of extraction and solidifying the organic phase by cooling in a centrifuge. Metal ions such as Cd2+, Ni2+, Co2+, and Zn2+ could be extracted into the organic phase without using any chelate extractant. (Keywords: in situ extractant formation method, easily-solidifying solvent, pyrrolidinedithiocabamic acid, cooling centrifuge)
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