2-羟基-4-仲辛基-二苯甲酮肟与P_(204)对钯的协同萃取

Synergic extraction of palladium(Ⅱ) with P 204 and 2-hydroxyl-4-sec-n-octyl-diphenyloxime

本文研究了２－羟基－４－仲辛基－二苯甲酮肟（Ｎ５３０）与Ｐ２４０的氯仿溶液，从高氯酸介质中对钯的协同萃取。采用斜率法确定萃合物的组成为Ｌ·Ｐｄ·Ａ。协同萃取反应平衡常数为ｌｇＫ１２＝１．６８８，协同萃取配合物的生成常数为：β１２＝１．８７。计算了协同萃取反应的热力学函数值。

The synergic extraction of Pd(Ⅱ) from perchloric acid system with 2-hydroxyl-4-sec-n-octyl-diphenyloxime(N 530 ) and P 204 has been investigated. By the method of slope analysis, the composition of the synergic extracting complexes have been determined to be L·Pd·A. The mechanism of the synergic extraction of Pd(Ⅱ) has been proposed as follows: Pd 2+ (A) +H 2A (O) +1/2(HL) 2(O) \ =K 12 \ L·Pd·A (O) +3H + (A) Moreover, the equilibrium constants and the thermodynamic functions of the synergic reactions have been calculated.