工业生产中醋酸甲酯回收技术的研究进展  

Research Progress of Purification and Recycling of Methyl acetate

作　　者：孙井智[1] 王业[1] 潘勇[1] 汪洋[2] 

机构地区：[1]南京化工职业技术学院化学工程系,江苏南京210048 [2]中国石化扬子石油化工有限公司,江苏南京210048

出　　处：《河北化工》2011年第12期35-37,共3页Hebei Chemical Industry

摘　　要：综述了聚乙烯醇和精对苯二甲酸生产过程中分离回收醋酸甲酯的主要方法,并对加盐萃取精馏等盐效分离方法、催化精馏方法和萃取精馏方法进行比较研究。结果表明,加盐萃取精馏方法能分离出高纯度醋酸甲酯,且生产工艺简单,有较好的应用前景。As main purification and recycling methods for methyl acetate from production of pure terephthalic acid and the polyvinyl alcohol,catalytic distillation,extractive distillation,and some separation adding salt such as alt extractive distillation were reviewed and compared in this paper.Furthermore,it could be concluded that the liquid-liquid extraction process could refine high purity methyl acetate and had better prospect due to its simplicity and low energy consumption.

关 键 词：醋酸甲酯 加盐萃取精馏 催化精馏 萃取精馏 

分 类 号：TQ225.242[化学工程—有机化工]