酯交换法合成碳酸二月桂酯的研究

Synthesis of Didodecyl Carbonate by Transesterification

杨肖嵘 李 剑

Yang Xiaorong Li Jian

(辽宁石油化工大学石油化工学院,辽宁抚顺113001)

School of Petrochemical Engineering，Liaoning Shihua University，Fushun Liaoning 113001, China

关键词: 碳酸二甲酯, 月桂醇, 酯交换, 碳酸二月桂酯

The synthesis of didodecyl carbonate was studied by transesterification progress using dimethyl carbonate and lauryl alcohol as the starting materials, and the prepared organotin compound as catalyst. Results indicated that the best synthetic condition were: the mole ratio of bay alcohol to dimethyl carbonate 2, heating temperature of 120 ℃, reaction time 3 h, mass fraction of catalyst to materials was 5% under atmospheric pressure using organotin as catalyst. Under the optimal synthetic conditions, the yield of DDC was 55.57%, the selectivity was 74.25%, and the total yield of carbonic acid esters of laurel was 75.16%.

辽宁省教育厅项目(LJQ2015062)。

10.3696/j.issn.1672-6952.2016.02.005