对甲基苯甲酸乙酯的酯化合成工艺改进

Improved Process of p-Methyl Ethylbenzoate Esterification Synthesis

以对甲基苯甲酸为原料 ,用硫酸提供酸性条件 ,采用精馏脱水工艺 ,提高了酯化收率 5 %～ 8% ,反应时间缩短了 10h。

p-Methylbenzoic acid as raw material and sulphur as acid condition,the article discusses a systhesis process of rectification dehydrating esterification,which can not only get a higher conversion of 5%～8% but also shorten the reaction time by 10 hours.