室温离子液体催化合成碳酸丙烯酯  

Formation of Propylene Carbonate Catalyzed by Room Temperature Ionic Liquids

作　　者：彭家建[1] 邓友全[1] 

机构地区：[1]中国科学院兰州化学物理研究所羰基合成与选择氧化国家重点实验室生态与绿色化学研究中心,兰州730000

出　　处：《催化学报》2001年第6期598-600,共3页

基　　金：人事部择优基金项目

摘　　要：In the presence of room temperature ionic liquids based on 1 butyl 3 methylimidazolium salt and butylpyridinium salt, cycloaddition of propylene oxide and carbon dioxide without any additional organic solvents was investigated. It was found that both cations and anions of the room temperature ionic liquids have strong influence on the catalytic activity. The better catalytic performance was achieved with 1 butyl 3 methylimidazolium tetrafluoroborate as a catalyst. A suitable CO 2/propylene oxide molar ratio is needed for the reaction, and the conversion of propylene oxide increases with the increase of reaction temperature. The ionic liquid as a catalyst for such reaction can be recycled.In the presence of room temperature ionic liquids based on 1-butyl-3-methylimidazolium salt and butylpyridinium salt, cycloaddition of propylene oxide and carbon dioxide without any additional organic Solvents was investigated. It was found that both cations and anions of the room temperature ionic liquids have strong influence on the catalytic activity. The better catalytic performance was achieved with 1-butyl-3-methylimidazolium tetrafluoroborate as a catalyst. A suitable CO2/propylene oxide molar ratio is needed for the reaction, and the conversion of propylene oxide increases with the increase of reaction temperature. The ionic liquid as a catalyst for such reaction can be recycled.

关 键 词：环氧丙烷 二氧化碳 环加成反应 碳酸丙烯酯 离子液体 催化合成 催化剂 

分 类 号：TQ413.2[化学工程]