2-羟基-5-仲辛基-二苯甲酮肟与P_(507)对钯的协同萃取

Synergistic Extraction of Palladium(Ⅱ) with P 507 and 2 hydroxyl 5 sec n octyl diphenyloxime

通过２－羟基－５－仲辛基－二苯甲酮肟（Ｎ６１０）与Ｐ５０７的氯仿溶液，从高氯酸介质中对钯协同萃取的研究，采用斜率法确定了萃合物的组成为：Ｐ５０７ＰｄＮ５１０．协萃反应平衡常数为ｌｇＫ１２＝１．７００，协同萃取配合物生成常数为β１２＝３．５３．同时计算了协萃反应的热力学函数值．

The synergistic extraction of Pd(Ⅱ) from perchloric acid system with 2 hydroxyl 5 sec n octyl diphenyloxime(N 510 ) and P 507 has been investigated. By the method of slope analysis, the composition of the synergistically extracted complexes has been determined to be L·Pd·A. The mechanism of the synergistic extraction of Pd(Ⅱ) has been proposed as follows:Pd 2+ (A) +H 2A (0) +1/2(HL) 2(0) K 12 L·Pd·A (0) +3H + (A) . Moreover, the equilibrium constants and the thermodynamic functions of the synergistic reactions have been calculated.