固-液萃取法研究1-苯基-3-甲基-4-苯甲酰基吡唑酮-[5]对钍、钪的萃取及钪的分析应用

Solid-liquid Extraction of Thorium and Scandium Complexes With 1-Phenyl-3-methyl-4-benzoyl-5-pyrazolone and its Analytical Application

本文以固体石蜡为溶剂,1-苯基-3-甲基-4-苯甲酰基吡唑酮-[5](HPMBP)为萃取剂,研究了钍、钪的萃取及反萃取条件。斜率比法示明石蜡中配合物组成分别为Th(PMBP)_4,Sc(PMBP)_3,人工合成钢铁样品的分析结果Sc^(3+)的回收率分别为99.6％和100％。

The extraction and back-extraction conditions of thorium and scandium with 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone (PMBP) in paraffin or ceresin have been studied. The composition of extracted complexes has been determined as Th(PMBP)_4 and Sc(PMBP)_3 by slope analysis. The spectrophotometric determination of Sc in steel has been developed by solid-liquid extraction. The recovery rate of Sc is 99.6％ and 100％, respectively.