HEHEHP+TBPO体系对UO_2SO_4的协同萃取

SYNERGISTIC EXTRACTION OF URANYL SULFATE BY HEHEHP+TBPO SYSTEM

摘要: 本文研究了用HEHEHP+TBPO的甲苯溶液萃取UO_2SO_4,水相条件pH=2.00,硫酸根的总浓度为0.500M。实验结果表明,生成的萃合物组成为UO_2(HA_2)A·TBPO,1gβ_(12)=5.02±0.07。

Abstract: The synergistic extraction mechanism of uranyl sulfate by a binary extraction system HBHEHP + TBPO has been investigated. The condition of the aqueous phase is fixed, with a concentration of sulfate 0.500M and pH=2.00. The composition of synergistically extracted complex is UO2(HA2)·A·TBPO and the binary synergistic extraction equilibrium constant is determined to be