第 36 卷第 3 期 Vol. 36 No. 3 2006 年 6 月 Jun 2006

所属栏目：有机合成原料 阳离子交换树脂作催化剂合成乙酸乙酯的研究

李浔; 吴道新; 夏畅斌; 李丽峰(长沙理工大学化学与环境工程系; 湖南长沙)

摘　要：以DOWEX MARATHONC型强酸性阳离子树脂为催化剂,在常压液相下用乙酸和乙醇合成乙酸乙酯。考察了反应温度、反应时间、催化剂用量和反应物初始摩尔比等参数对反应体系的乙酸乙酯收率影响。通过正交实验得到优化反应条件:反应时间为55 min,反应温度为70℃,催化剂用量为110 g/L,醇与酸摩尔比为1.5∶1,乙酸乙酯收率可达62%。

关键词：阳离子交换树脂; 乙酸乙酯; 催化剂

中图分类号：TQ225.24　　文献标识码：A　　文章编号：1009-9212(2006)03-0055-04

Synthesis of Ethyl Acetate Using Cation Exchange Resin as Catalyst

LI Xun; WU Dao-xin; XIA Chang-bin; LI Li-feng（Department of Chemical and Environmental Engineering; Changsha University of Science and Technology; Changsha 410076; China）

Abstract：The esterification reaction of acetic acid and ethanol using cation exchange resin DOWEX MARATHON C as catalyst was investigated.The catalyst activity and the converting rate of process were discussed under experimental conditions of the reaction temperature,catalyst amount,initial reactants molar ratio and reaction time.The optimal conditions obtained by the orthogonal design experiment for the esterification reaction with the yield up to 62% is that reaction time 55 min,reaction temperature 70℃,catalyst a...

Key words：cation exchange resin; ethyl acetate; catalyst

基金项目：湖南省教育厅高校科研一般项目(05C229)

收稿日期：2006-05-10

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