强酸性阳离子交换树脂催化合成丙酸异丁酯  

Synthesis of isobutyl propionate catalyzed by strong acidic cationic exchange resin

作　　者：刘素环[1] 李继红 

机构地区：[1]商丘职业技术学院,河南商丘476000 [2]河南省医药学校,河南开封475001

出　　处：《应用化工》2009年第3期357-358,362,共3页Applied Chemical Industry

基　　金：河南省教育厅自然科学研究计划项目(2008A150002)

摘　　要：采用强酸性阳离子交换树脂为催化剂合成了丙酸异丁酯,考察了催化剂用量、醇酸物质的量比、反应时间、催化剂重复使用性及带水剂等因素对收率的影响。确定最佳反应条件为:醇酸物质的量比1∶3,催化剂2.4 g,反应时间70 min,环已烷用量5 mL。结果表明,该催化剂具有催化活性高,易分离回收,重复使用性良好,废液排放量少等优势。最佳反应条件下收率87.6%。By using strong acidic cationic exchange resin as the catalyst, propionic acid and isobutyl alcohol reacted to form isobuty｜ proplonate. The time and water-carrying agent and so on on yield were discussed. The optimal reaction condition as follow ： mole ratio of material was 1 ： 3, amount of catalyst was 2.4 g, reaction time was 70 min. ues level of cyclohexane was 5 mL. Experimental results showed that it was the efficient, economic and environmental friendly catalyst, its yield could reach 87.6% under the best conditions.

关 键 词：丙酸异丁酯 强酸性阳离子交换树脂 催化 合成 

分 类 号：O623.624[理学—有机化学]