HPMBP和DAM协同萃取Ln^(3+)的研究

Synergistic Extraction of Ln 3+ with HPMBP and DAM

研究了１－苯基－３－甲基－４－苯甲酰基吡唑酮－５（ＨＰＭＢＰ）和二安替吡啉甲烷（ＤＡＭ）的氯仿溶液从硝酸介质中对Ｌｎ３＋（Ｌｎ＝Ｌａ，Ｐｒ，Ｎｄ，Ｇｄ）的协同萃取，测定了其半萃取ｐＨ值，结果分别为４．３８（Ｌａ３＋）、３．９７（Ｐｒ３＋）、３．９２（Ｎｄ３＋）和３．８２（Ｇｄ３＋）。通过斜率法确定了协萃合物的组成为Ｌａ（ＰＭＢＰ）３（ＤＡＭ），并合成了固态萃合物。

The synergistic extraction of Ln 3+ (Ln=La,Pr,Nd,Gd) from nitric acid solutions with 1 phenyl 3 methyl 4 benzoyl pyrazolone 5 (HPMBP) and diantipyrinylmethane (DAM) have been studied.The composition of synergistic extracted compound La(PMBP) 3(DAM) is determined by the method of slop The pH values of half an extraction rate for La 3+ ,Pr 3+ ,Nd 3+ and Gd 3+ are 4.38,3.97,3.92 and 3.82 respectively.