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TTA与中性磷试剂(B)对钍的协同萃取,存在着两种不同的协萃机理:在盐酸介质中为加成反应;在硝酸介质中为取代反应。毛家骏曾报道用1-苯基-3-甲基-4-苯甲酰基吡唑啉酮-[5](PMBP)与DIAMP或TBPO的苯溶液从硝酸介质中对钍的协同萃取,测得协萃物的组成为ThA_3(NO_3)·B及ThA_2(NO_3)_2·2B(A表示PMBP的阴离子)。PMBP
TTA and neutral phosphorus reagent (B) Synergistic extraction of thorium, there are two different synergistic extraction mechanism: addition reaction in hydrochloric acid medium; in the nitric acid medium for the substitution reaction. Mao Jiajun has reported the synergistic extraction of thorium from nitric acid media with 1-phenyl-3-methyl-4-benzoylpyrazolone- [5] (PMBP) and DIAMP or TBPO in benzene Extracts are composed of ThA_3 (NO_3) .B and ThA_2 (NO_3) _2.2B (A represents the anion of PMBP). PMBP