Abstract: The aim of this work is to simulate and examine a batch extractive distillation process for purification of dimethyl carbonate (DMC) from the DMC-MEOH azeotropic system. The extractive solvent ethylene carbonate (EC) was used, which was also one of the reagents to synthesize DMC. The results of simulation were compared with examination in the following fields: reflux ratio, temperature of solvent, flow rate of solvent etc. The products could be separated under the following operation condition: reflux ratio in extractive distillation 0.8—1.2, reflux ratio in the distillation of EC-DMC 2—2.5; optimum temperature of solvent 65 ℃, flux rate of solvent to the azeotrope 1.85—1.95. The obtained results could be possibly used as the theoretical and practical basis for industrial equipment.