研究了２羟基４仲辛基二苯甲酮肟（Ｎ５３０）与２乙基已基２乙基已基膦酸（ＨＥＨＥＨＰ）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。协萃反应平衡常数为ｇ Ｋ１２＝ １６５８，协同萃取配合物的生成常数为β１２＝ １７４。计算了协同萃取反应的热力学函数值 The effects of 2-hydroxy-4-secoctyl-benzophenone oxime (N530) and 2-ethylhexyl 2-ethylhexylphosphonic acid (HEHEHP) in chloroform were studied. Synergistic extraction. Using slope method to determine the composition of the extract: L · Pd · A. The reaction equilibrium constant was g K12 = 1658, and the formation constant of the synergistic extraction complex was β12 = 174. The thermodynamic function values ​​of the co-extraction reaction were calculated