and the result of the esterification reaction is rectified to remove and recover unreacted propylene glycol methyl ether and acetic acid to obtain propylene glycol methyl ether acetate.

• 将酯化反应产物精馏，脱除并回收未反应的丙二醇甲醚和醋酸，得到丙二醇甲醚醋酸酯。