论文部分内容阅读
本文研究了1-苯基3-甲基4-苯甲酰吡唑酮-5(PMBP)与磷酸三丁酯(TBP)或二苯亚砜(DPSO)的苯溶液从硝酸介质中对U(Ⅵ)的萃取,实验发现有显著的二元协萃效应,并测定了二元协萃络合物的组成为 UO_2A_2·TBP或 UO_2A_2·DPSO,求得二元协萃平衡常数为1gβ_(12)=3.58,1gβ_(13)=3.61。 根据配位数饱和原理,我们预测有ABB类三元协萃络合物存在的可能性。本文以PMBP+TBP+DPSO 体系苯溶液从硝酸底液萃取U(Ⅵ),实验发现了三元协萃现象存在的条件,测定了三元协萃络合物的组成为UO_2A_2·TBP·DPSO,并首次提出三元协萃平衡常数的计算方法,测得1gβ_(123)=5.58。
In this paper, the effects of benzene solution of 1-phenyl 3-methyl 4-benzoylpyrazolone-5 (PMBP) and tributyl phosphate (TBP) or diphenyl sulfoxide (DPSO) Ⅵ). The results showed that there was a significant binary synergistic effect and the composition of the binary complex complex was determined to be UO_2A_2 · TBP or UO_2A_2 · DPSO. The equilibrium constant of binary extraction was 1gβ_ (12) = 3.58, 1gβ_ (13) = 3.61. According to the principle of coordination number saturation, we predict the existence of ABB class ternary complex compound possibility. In this paper, U (Ⅵ) was extracted from the nitric acid solution by benzene solution of PMBP + TBP + DPSO system. The conditions for the existence of ternary synergistic extraction were found. The composition of the ternary synergistic complex was determined as UO_2A_2 · TBP · DPSO, And for the first time proposed ternary synergistic equilibrium constant calculation method, measured 1gβ_ (123) = 5.58.