硫酸高铈催化合成乙酸丙酯  

Synthesis of propyl acetate catalyzed by ceric sulfate

作　　者：訾俊峰[1] 宋少堂[2] 

机构地区：[1]许昌学院化学化工学院,河南许昌461000 [2]河南省农科院烟草研究所,河南许昌461000

出　　处：《工业催化》2015年第2期156-158,共3页Industrial Catalysis

摘　　要：以硫酸高铈为催化剂,冰乙酸和正丙醇为原料,环己烷为带水剂合成乙酸丙酯,研究正丙醇与冰乙酸物质的量比、反应时间、催化剂用量及重复使用次数对酯化率的影响。经正交实验及单因素实验得到反应的最佳合成条件为:冰乙酸用量0.1 mol,醇酸物质的量比1.5,硫酸高铈用量1.1 g,反应时间2.0 h,此条件下,酯化率约为99%。该催化剂具有催化活性高、操作简单和不污染环境等优点。Using ceric sulfate as the catalyst,glacial acetic acid and n-propyl alcohol as raw materials and cyclohexane as water carrying agent,propyl acetate was synthesized by esterification reaction. The influence of molar ratio of n-propyl alcohol to glacial acetic acid,reaction time,ceric sulfate dosage and repeated use times on the esterification rate was investigated. The optimal condition of the esterification reaction was determined by orthogonal tests and single factor experiments. The results showed that the esterification rate of about 99% was attained under the optimal condition as follows：glacial acetic acid amount 0. 1 mol,molar ratio of n-propyl alcohol to glacial acetic acid 1. 5,ceric sulfate dosage 1. 1 g and reaction time 2. 0 h. The catalyst had the features of high activity,simple operation and little pollution.

关 键 词：精细化学工程 硫酸高铈 冰乙酸 正丙醇 乙酸丙酯 

分 类 号：TQ655[化学工程—精细化工] O643.36[理学—物理化学]