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一、引言本文研究HDBP(磷酸二丁酯)+TBPO(三丁基氧磷)体系协萃U(Ⅵ)的机理,实验中采用单浓度递变法及等摩尔系列法确定协萃物组成为UO_2A_2(HA)_2B,并测得协萃平衡常数lgβ_(12)=6.89.文中用锥角模型提出的“配位体立体角系数和”稳定规律解释了上述结果,并从温度对萃
I. INTRODUCTION In this paper, the mechanism of synergistic extraction of U (Ⅵ) by HDBP (dibutyl phosphate) + TBPO (tributylphosphine) system was studied in this paper. The concentration of UO_2A_2 (HA) _2B, and the equilibrium equilibrium constant lgβ_ (12) = 6.89 was measured.The above results were explained by the “solid angle coefficient and stability law of ligand” proposed by the cone angle model,