浓硫酸改性膨润土催化酯化反应研究  

The research of catalytic performance of bentonite modified by concentrated sulfuric acid on esterification reaction

作　　者：裴强[1] 金春雪[1] 谢云[1] 

机构地区：[1]信阳师范学院化学化工学院,河南信阳464000

出　　处：《化学研究与应用》2013年第10期1408-1411,共4页Chemical Research and Application

基　　金：信阳师范学院青年教师基金项目(201205)资助

摘　　要：以浓硫酸改性膨润土为催化剂，催化冰乙酸（脂肪酸）、苯甲酸（芳香酸）、丙烯酸（a，β-不饱和酸）与不同醇的酯化反应，得到10个相应的化合物。该方法操作简单，催化剂用量少（1．5g），时间短（0．5h），产率较高（43．7％～88．7％）。催化剂重复使用5次，对产率的影响不大。Acetic acid, benzoic acid and acrylic acid underwent esterification reaction with different alcohols in the presence of ben tonite modified by concentrated sulfuric acid, to afford 10 corresponding esters. This method provided several advantages such as simple work-up procedure, less amount of catalyst（ 1.5 g）, high yield （ 43.7 % - 88.7% ）, shorter reaction time （ 0. 5 h ）. In addi tion,the catalyst could be reused in 5 times, and had little influence on yields.

关 键 词：硫酸 改性 膨润土 酯化 

分 类 号：O621.3[理学—有机化学]