硫酸氢钠催化合成丙二醇甲醚醋酸酯的研究  

Synthesis of Propylene Glycol Monomethyl Ether Acetate by Using Sodium Bisulfate Catalyst

作　　者：黄家龙 HUANG Jia-long(Pionmi Innovation&Technology(Guangzhou)Co.,Ltd.,Guangdong Guangzhou 510663,China)

机构地区：[1]柏安美创新科技(广州)有限公司,广东广州510663

出　　处：《广州化工》2022年第18期86-88,共3页GuangZhou Chemical Industry

摘　　要：以醋酸和丙二醇甲醚为原料,硫酸氢钠为催化剂,环己烷为带水剂合成丙二醇甲醚醋酸酯,考察了原料醇酸配比、催化剂用量、带水剂用量、反应时间等因素对转化率的影响。通过实验结果分析对比,得到较佳实验反应条件:在原料酸醇配比为1.5,催化剂用量为原料总质量的3%,带水剂用量为原料总质量的15%,反应时间为3 h的工艺条件下,丙二醇甲醚的转化率达到96%以上。The process of esterification of propylene glycol monomethyl ether(PM) with acetic acid to synthesize propylene glycol monomethyl ether acetate(PMA) was investigated using NaHSOas catalyst and cyclohexane as water-carrying agent.The effects of the molar ratio of acid to PM,the amount of catalystd and water-carrying agent and reaction time on the conversion were studied.Through the analysis and comparison of the experimental results,it was found that the conversion of PM will be over 96% with the optimum conditions:molar ratio of acetic acid to PM was 1.5,weight of catalyst was 3 wt% of the total raw material,weight of water-carrying agent was 15 wt% of the total raw material,and reaction time was 3 h.

关 键 词：醋酸 丙二醇甲醚 丙二醇甲醚醋酸酯 硫酸氢钠 催化合成 

分 类 号：TQ223.2[化学工程—有机化工]