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本文研究了1-苯基-3-甲基-4-苯甲酰基吡唑啉酮-5(PMBP)与丁基膦酸二丁酯(DBBP)或磷酸三丁酯(TBP)的氯苯溶液在硝酸介质中对铽(Ⅲ)的协同萃取。测得了萃合物的组成及其萃取平衡常数,讨论了萃合物的可能结构式及协同萃取机理。
In this paper, the chlorobenzene solution of 1-phenyl-3-methyl-4-benzoylpyrazolone-5 (PMBP) and dibutylbutylphosphonate (DBBP) or tributyl phosphate Synergistic extraction of terbium (Ⅲ) in nitric acid medium. The composition of the extract and the equilibrium constant of its extraction were measured. The possible structure of the extract and the mechanism of its synergistic extraction were discussed.