α-亚磺酰基-N,N-二正丁基乙酰胺萃取U(Ⅵ)的研究

STUDY ON EXTRACTION OF U(Ⅵ) WITH α-SULFINYL-N,N-DIBUTYLACETAMIDE

摘要: 合成了α 亚磺酰基 N ,N 二正丁基乙酰胺 (SDBAA) ,研究了溶剂 ,水相酸度 ,盐析剂、萃取剂浓度等对硝酸铀酰的萃取性能的影响 ,并与TBP作了比较。结果表明 ,α 亚磺酰基 N ,N 二正丁基乙酰胺系列化合物都可以有效地从硝酸溶液中萃取UO2 2 + ,当取代基为正丁基和 2 乙基己基时 ,其萃取性能优于TBP。

Abstract: New extractants, α sulfinyl N,N dibutylacetamides, are synthesized. Study of extraction of U(Ⅵ) with these compounds is performed by selecting diluents, changing the concentrations of the nitric acid and extractants and salting out agent in the aqueous phase. The abilities of all compounds synthesized for extraction of U(Ⅵ) are compared to TBP. The results show that all these compounds can efficiently extract UO 2 2+ from nitric acid. With substituents 2 ethylhexyl and n butyl, the abilities of extraction of U(Ⅵ) are better than TBP.