哈尔滨工程大学学报2023，Vol.44Issue(12)：2177-2184,8.DOI:10.11990/jheu.202309013
联吡啶二酰胺配体对U(Ⅵ)/Mo(Ⅵ)的萃取分离及机理
The study on the extraction separation and mechanism of U(Ⅵ)/Mo(Ⅵ)by bipyridine diamide ligands
摘要
Abstract
This study synthesized three bipyridine diamide ligands with different alkyl substituents to solve the prob-lem of U(Ⅵ)/Mo(Ⅵ)separation.Solvent extraction and spectroscopic analysis were employed to examine the effect of the ligand on the separation performance and extraction mechanism of U(Ⅵ)/Mo(Ⅵ),respectively.The results show that the three ligands have excellent separation effects on U(Ⅵ)/Mo(Ⅵ),and the separation factor reaches approximately 2 000 under the optimal condition.Three different stripping agents were designated to carry out the stripping experiments.The three stripping rates were approximately 100%,indicating that the newly fabri-cated ligands had excellent recycling potential.Relevant coordination chemistry and extraction mechanisms were further described through slope analysis,mass spectrometry titration,and infrared spectroscopy.The three ligands can realize high U(Ⅵ)/Mo(Ⅵ)separation efficiency.Moreover,this study provides an important reference for the design of U(Ⅵ)/Mo(Ⅵ)separation ligands.关键词
联吡啶/二酰胺/萃取/反萃/铀/钼/分离/配位机理Key words
dipyridine/diamide/extraction/stripping/uranium/molybdenum/separation/coordination mecha-nism分类
能源科技引用本文复制引用
修涛元,张萌,叶国安,矫彩山,袁立永,石伟群..联吡啶二酰胺配体对U(Ⅵ)/Mo(Ⅵ)的萃取分离及机理[J].哈尔滨工程大学学报,2023,44(12):2177-2184,8.基金项目
国家自然科学基金项目(U1967216,22076188,U20B2019,21876174). （U1967216,22076188,U20B2019,21876174）
