However, the yield of dimethylbenzene and butylacetate was 75% and 100%, respectively, by heterogeneous azeotropic batch distillation when oil-water rate was 1:1 and reflux was 5.

• 在水和废溶剂油为1:1、回流比为5时，采用非均相共沸间歇精馏二甲苯和醋酸丁酯在馏出液中的收率分别达到75%25和100%25。