咪唑型功能离子液体合成及其对铀(Ⅵ)的萃取  

Synthesis of Imidazole-type TSIL and Extraction for Uranium(Ⅵ)

作　　者：李宏宇[1,2] 申利红[1] 张乐[1] 李培佑[2] 

机构地区：[1]邯郸学院邯郸市有机小分子材料重点实验室,河北邯郸056005 [2]核工业北京化工冶金研究院,北京101149

出　　处：《原子能科学技术》2014年第3期390-394,共5页Atomic Energy Science and Technology

基　　金：国家自然科学基金资助项目(50774031)

摘　　要：通过在阳离子结构中引入铀酰离子萃取剂磷酸三丁酯(TBP)的功能结构,设计合成了两种咪唑型离子液体,使该离子液体在硝酸介质中萃取铀酰离子时,既是稀释剂又具有萃取剂功能。利用傅里叶红外光谱(FTIR)、核磁共振(1 H NMR)和元素分析,对合成的离子液体结构进行了确认,并对硝酸介质中萃取铀酰离子进行了初步研究。结果表明:室温条件下,所合成的具有特定功能的离子液体可在硝酸介质中萃取铀酰离子,萃取率可达90%以上。Two imidazole-type task-specific ionic liquids （TSILs） were designed and synthesized through the introduction of tributyl phosphates （TBP） functional structure in cationic of the TSILs .They also can be as solvent and extractive agent for extracting uranyl ion in nitric acid media . Their structures were confirmed by using Fourier transform infrared spectrometer （ FTIR ） , nuclear magnetic resonance spectrum （1 H NMR） and element analysis . The extractive performances of these TSILs for uranyl ion in nitric acid medium were studied . Results show that these TSILs synthesized above can be used to extract uranyl ion in nitric acid media under room temperature ,and the extraction rate can reach more than 90% .

关 键 词：特定功能离子液体 铀酰离子 磷酸三丁酯 萃取 

分 类 号：TL922[核科学技术—核燃料循环与材料]