The recovery of dimethylbenzene and butylacetate from industrial spent solvent oil by batch distillation was studied, and the batch distillation experiment was performed with pretreated material.

• 研究采用间歇精馏法从工业废溶剂油中回收二甲苯和醋酸丁酯，对预处理后的原料进行了间歇精馏工艺实验研究。