用1-苯基-3-甲基-4-苯甲酰基-5-吡唑啉酮萃取<sup>46</sup>Sc的研究

用1-苯基-3-甲基-4-苯甲酰基-5-吡唑啉酮萃取⁴⁶Sc的研究

摘要: 用1-苯基-3-甲基-4-苯甲酰基-5-吡唑啉酮(PMBP)做萃取剂，氯仿和环己烷为稀释剂，观察了在HCl介质中46Sc的溶剂萃取行为。实验结果表明从10-310-2 mol/ L的HCl溶液中用PMBP－氯仿（或环己烷）能高效地萃取46Sc。另外，对PMBP从 HCl溶液中萃取46Sc 和234Th的结果也做了比较，结果表明，通过控制水溶液中HCl的酸度，能实现Th与 Sc的分离。

Abstract: The solvent extraction of 46Sc has been investigated in the HCl medium using 1-phenyl-3-methyl-4-bonzoyl-5-pyrazone (PMBP) as extractant and chloroform or cyclohexane as diluent. The experimental results reveal that PMBP is an effective extractant for Sc from dilute HCl solutions. The solvent extraction of 46Sc is compared with that of 234Th in the HCl medium by PMBPCHCl3. It is found that 234Th can be separated from Sc by control of the HCl acid concentration.