【摘要】 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Sc³⁺的回收率分别为99.6％和100％。更多还原

【Abstract】 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.更多还原