不同稀释剂中二苯亚砜萃取铀(Ⅵ)的研究

STUDIES ON EXTRACTION OF URANIUM(Ⅵ) WITH DIBENZ SULFOXIDE(DPSO) IN VARIOUS DILUENTS

研究了不同稀释剂中二苯亚砜对铀（Ⅵ）的萃取，其萃取能力在不同稀释剂中按苯＞甲苯＞四氯化碳＞氯仿的顺序变化，求出了萃取反应的焓变，并建立了萃取平衡常数与稀释剂物理参数间的经验方程．

The extraction of uranium(Ⅵ) with DPSO in different diluents was studied.The decreasing order of extraction ability of DPSO is as follows:bebzene,toluene,tetrachloride and chloroform.The effect of temperature on extraction equilibrium was also investigated and the enthalpy of the extraction was obtained.The relationship between the extraction equilibrium constants K ex ,and the physical parameters of diluents can be derived.