温控两相体系中离子液体催化果糖脱水的研究  

Study on Dehydration of Fructose Catalyzed by Ionic Liquid in Thermoregulated Biphasic System

作　　者：刘小兵[1] 钟路平[1] 胡玉林[2] 

机构地区：[1]井冈山大学化学化工学院,江西吉安343009 [2]盐城师范学院化学化工学院,江苏盐城224002

出　　处：《广东化工》2015年第11期42-43,共2页Guangdong Chemical Industry

基　　金：江西省教育厅科技计划项目(GJJ13535);井冈山大学博士科研启动基金(JZB1322)

摘　　要：研究了双阳离子型酸性离子液体[TMEDAPS][HSO4]和正丁醇组成温控两相催化体系,催化果糖脱水制备5-羟甲基糠醛。该催化体系具有良好的催化性能,在反应温度为110℃,反应时间为120 min,离子液体用量为5 m L时,5-HMF的收率达到91.3%。离子液体[TMEDAPS][HSO4]经过真空干燥除水后,重复使用五次,其催化性能没有明显的变化,可以保持稳定的5-HMF的收率。In the paper, dehydration of fructose to 5-hydroymethylfurfural catalyzed by dicationic acidic ionic liquid [TMEDAPS][HSO4]/n-butanolcomponent thermoregulated biphasic system has been described. The results indicated that the catalytic system presented the highest catalytic activity in the case of 110℃ and 120 min and 5-HMF yield of 91.3 % can be obtained when ionic liquid dosage is 5 mL. The ionic liquid [TMEDAPS][HSO4] can be recycled for five times without obviously decreasing the catalytic activity after vacuum drying dehydration and the stability of the yield of 5-HMF can be maintained.

关 键 词：果糖 离子液体 温控两相体系 

分 类 号：TQ[化学工程]