简单、快速、清洁合成高纯度二烷基咪唑四氟硼酸离子液体(英文)  

Simple,Rapid and Clean Synthesis of Dialkylimidazolium Tetrafluoroborate ionic Liquids with high Purity

作　　者：王瑞峰[1,2,3] DENG You-quan 张庆华[1] 刘士民[1] 李作鹏[1] 李健[1] 陈正件[1] 邓友全[1] 

机构地区：[1]中国科学院兰州化学物理研究所绿色化学研究发展中心,甘肃兰州730000 [2]兰州大学应用有机国家重点实验室,甘肃兰州730000 [3]中国科学院研究生院北京100039

出　　处：《分子催化》2009年第1期1-6,共6页Journal of Molecular Catalysis(China)

基　　金：the National Natural Science Foundation of China for the financial support(No.20225309 and 20533080)

摘　　要：通过三烷基钖四氟硼酸盐与烷基咪唑作用一步合成了一系列二烷基咪唑四氟硼酸离子液体,所有反应在室温下5～120分钟内完成,产率均>99%.对以上离子液体中可能含有的主要杂质进行了测定,结果表明,通过一步法合成的离子液体中卤素离子、Na+和卤代烷的含量均低于检出限,烷基咪唑的含量在0～0.53wt%范围内.此方法具有简单、快速、清洁等优点,是一种制备高纯度离子液体可行方法.Ionic liquids （ILs） are more and more applied in academic research and industry as electrolyte and solvent substitutes. Recently, these liquids have also been used as lubricants, heat transfer agents, performance additives in paints,process fluids for separation processes, catalyzts and in analytical devices.With the in-depth development of IL research, a salient point emerging from several recent studies concerns the purity of ILs. The previous literatures showed that possible impurities in conventional ILs such as dialkylimidazolium BF4 and PF6 salts were unreacted alkylimidazoles, alkyl halides, Br^-, Cl^-, and water etc. ,

关 键 词：离子液体 一步法 高纯度 合成 绿色化学 

分 类 号：O643.3[理学—物理化学]