合成材料老化与应用2026，Vol.55Issue(2)：21-25,95,6.
酯酯交换合成碳酸甲乙酯和碳酸二乙酯的新工艺
A New Process for the Synthesis of Methyl Ethyl Carbonate and Diethyl Carbonate via Transesterification
摘要
Abstract
Methyl ethyl carbonate and diethyl carbonate were synthesized by ester-ester exchange using dimethyl carbonate and ethyl acetate as raw materials,methanol solution of sodium methoxide as catalyst,at room temperature and pressure.The conversion rate of raw material dimethyl carbonate can reach about 65％.After filtering out the catalyst,the clear liquid can be separated by distillation to obtain battery grade products.Unreacted raw materials are recycled,and the by-product methyl acetate is also a common organic solvent.The utilization rate of raw materials is 100％.Compared with the existing ester-alcohol exchange method using dimethyl carbonate and ethanol as raw materials,it shortens the reaction time of ester exchange significantly,prevents the precipitation and scaling on the equipment wall by the catalyst conversion products,and solves the problem of difficult product separation and purification caused by product azeotrope in the ester-alcohol exchange process.It is expected that this new process can replace the old process of the current ester-alcohol exchange.关键词
碳酸甲乙酯/碳酸二乙酯/酯交换反应/锂电池电解液Key words
methyl ethyl carbonate/diethyl carbonate/transesterification reaction/lithium battery electrolyte分类
化学化工引用本文复制引用
郑知勤..酯酯交换合成碳酸甲乙酯和碳酸二乙酯的新工艺[J].合成材料老化与应用,2026,55(2):21-25,95,6.基金项目
福建省莆田市科技项目(2022GM001). （2022GM001）
