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功能化酸性离子液体催化合成丙酸异戊酯
引用本文:孙明霞,张中军,刘丹,桂建舟,钟巍.功能化酸性离子液体催化合成丙酸异戊酯[J].工业催化,2009,17(10):51-54.
作者姓名:孙明霞  张中军  刘丹  桂建舟  钟巍
作者单位:辽宁石油化工大学化学与材料科学学院,辽宁 抚顺 113001
基金项目:国家自然科学基金项目 
摘    要:研究了功能化酸性离子液体催化合成丙酸异戊酯的反应,考察了不同离子液体、反应温度、反应时间、离子液体与反应物物质的量比及催化剂重复使用次数等因素的影响。以功能化酸性离子液体[(CH2)4SO3HMIm]HSO4为催化剂,在60 ℃、n(丙酸)∶n(异戊醇)∶n(离子液体)=5∶5∶1和反应时间2 h的条件下,异戊醇转化率99.43%,丙酸异戊酯选择性100%。催化剂循环使用5次,催化活性基本不变。

关 键 词:催化化学    酸性离子液体  丙酸异戊酯  酯化反应    

Synthesis of isoamyl propionate catalyzed by acidic ionic liquids
SUN Mingxia,ZHANG Zhongjun,LIU Dan,GUI Jianzhou,ZHONG Wei.Synthesis of isoamyl propionate catalyzed by acidic ionic liquids[J].Industrial Catalysis,2009,17(10):51-54.
Authors:SUN Mingxia  ZHANG Zhongjun  LIU Dan  GUI Jianzhou  ZHONG Wei
Affiliation:School of Chemistry and Materials Science, Liaoning Shihua University, Fushun 113001, Liaoning, China
Abstract:Synthesis of isoamyl propionate catalyzed by acidic ionic liquids was investigated, including the influence of different ionic liquids, reaction temperature, reaction time and dosage of ionic liquid (reactant-to-IL mole ratio). Isoamyl alcohol conversion of 99.43% and selectivity to isoamyl propionate of 100% were obtained under optimum reaction condition as follows: (CH2 )4S03HMIm] HSO4 as the catalyst, n( propanoic acid) : n( isoamyl alcohol) : n (IL) = 5 : 5 : 1, 60 ℃, reaction for 2 h. The ionic liquid was repeatedly used for five cycles without apparent loss of catalytic activity.
Keywords:catalytic chemistry  acidic ionic liquid  isoamyl propionate  esterification
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