HMBMPPT-TBP/氯仿对铀的协同萃取

Synergistic Extraction of U(Ⅵ) With HMBMPPT and TBP in Chloroform

摘要: 研究了以氯仿为溶剂时,4 (4 甲氧基) 苯甲酰基 2,4 二氢 5 甲基 2 苯基 3H 吡唑硫酮 3(HMBMPPT)与中性萃取剂磷酸三丁酯(TBP)在硝酸介质中对铀(Ⅵ)的协同萃取行为,考察了pH、萃取剂浓度和协萃剂浓度对分配比的影响。推测了协萃配合物的化学组成为:UO2NO3·MBMPPT·TBP和UO2(MBMPPT)2·TBP。

Abstract: The synergistic extraction of U(Ⅵ) from nitric acid solution with HMBMPPT \4-(4-methoxy)-benzoyl-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-thione\ and TBP (tributyl phosphate) in chloroform is studied including influences of pH, the concentrations of HMBMPPT and TBP on the distribution ratio. The synergistic extracted complexes are deduced as UO_2NO_3·MBMPPT·TBP and UO_2(MBMPPT)_2·TBP.