HPMBP与N_（1923）协同萃取钯（Ⅱ）的研究

Beheaviour of synergistic extraction palladium(Ⅱ)with HPMBP and N_(1923)

研究了１－苯基－３－甲基－４－苯甲酸吡哇酮－５（ＨＰＭＢＰ）和伯胺Ｎ１９２３的氯仿溶液从硝酸介质中协同萃取钯（Ⅱ）的平衡．结果表明，当［Ｎ１９２３］＞１．５０×１０－２ｍｏｌ·ｄｉｎ－３时，ＨＰＭＢＰ－Ｎ１９２３－ＣＨＣｌ３体系对钯（Ⅱ）出现反协草效应．应用对应溶液法原理探讨了ＨＰＭＢＰ与Ｎ１９２３在溶液中的缔合行为，解释了出现反协革效应的原因．

The behaviour of synergistic extraction palladium(Ⅱ) with HPMBP and primary amine N1923 from nitric acid solution has been studied. The results show that when [N1923]>1.50×10-2 mol din-3,since the interaction between HPMBP and N1923 anti-synergistic extraction is observed. According to the theory of correspondence solution, the composition of complex is determined. The reaction equation between HPMBP and N1923 is as follow βj HPMBP+N1923(o) HPMBP. N1923(o)βj stands for the ion association reaction equilibrium costant.