Chemical Research in Chinese Universities ›› 1985, Vol. 1 ›› Issue (1): 15-20.

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Synergic Extraction of Uranium Thiocyanate by the Ternary System of ABC Species Composed of PMBP-TBP-(C6H5)4AsCI

Yi Min, Chen Dingfong, Mou Xiru, Wang Wenqing   

  1. Department of Technical Physics, Peking University, Beijing
  • Received:1984-05-08 Online:1985-06-24 Published:2011-09-07

Abstract: The synergic extraction of uranyl thiocyanate with binary system of 1-phenyl-3-methy1-4-benzoylpyrazolone-5(PMBP)and tributyl phosphate(TBP)or tetraphenylarsonium chloride [(C6H5)4AsCl] and ternary system of PMBP-TBP-(C6H5)4AsCl was studied.There was an obvious synergic effect of uranium (VI)from thiocyanate medium in binary and ternary systems.The formation of a ternary extracted complex,(C6H5)4AsUO2(NCS)A2TBP,was confirmed by the slope method.Amethod was first proposed for the calculation of the equilibrium constant of ternary synergic reaction.