催化反应精馏制备乙酸乙酯  

Preparation of Ethyl Acetate by Catalytic Reactive Distillation

作　　者：盛奎龙 李国红 杜兰英 

机构地区：[1]中石化南阳石蜡精细化工厂,南阳473132

出　　处：《精细石油化工进展》2007年第1期26-28,共3页Advances in Fine Petrochemicals

摘　　要：利用反应精馏装置研究了乙酸和乙醇直接酯化法合成乙酸乙酯的转化条件:加热温度200℃,浓硫酸质量占混和物总质量0.6%,回流比为3∶1,乙酸与乙醇的摩尔比为1.15∶1。以反应精馏方式进行时,乙醇转化率、乙酸乙酯收率分别为94.09%和60.45%,明显高于普通蒸馏法,而乙醇转化为乙酸乙酯的选择性变化不大。The synthesis of ethyl acetate by reactive distillation was conducted experimentally. The optimum conditions were as follows ： the temperature 200 ℃, the mass ratio of sulfuric acid as catalyst to the mixture 0.6 %, the reflux ratio 3 ： 1, the molar ratio of acetic acid to ethanol 1.15 ： 1. The results showed that the conversion rate of ethanol was 94.09 %, the yield of ethyl acetate was 60.45 %, obviously higher than conventional synthesis method, while the selectivity varied slightly.

关 键 词：反应精馏 直接酯化法 转化率选择性 收率 

分 类 号：TQ225.24[化学工程—有机化工]