文献类型：期刊文献

英文题名：Experimental and Kinetic Studies on a Homogeneous System for Diethyl Carbonate Synthesis by Transesterification

作者：Zhang, Yang[1];Ji, Zilong[1];Xu, Ruifeng[1];Fang, Yunjin[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2012

卷号：35

期号：4

起止页码：693

外文期刊名：CHEMICAL ENGINEERING & TECHNOLOGY

收录：;EI(收录号：20121414921785);WOS:【SCI-EXPANDED(收录号:WOS:000302069700018)】；

基金：The authors gratefully acknowledge the financial support of the China Petroleum & Chemical Corporation.

语种：英文

外文关键词：Diethyl carbonate; Kinetics; Propylene carbonate; Sodium ethoxide; Transesterification

摘要：A synthesis of diethyl carbonate through transesterification of propylene carbonate and ethanol, coproducing useful propylene glycol, was carried out in the presence of sodium ethoxide as catalyst. The effects of reaction parameters such as catalyst concentration, mole ratio of ethanol to propylene carbonate and reaction temperature on the transesterfication reaction were investigated. The results showed that the reaction is reversible with a propylene carbonate equilibrium conversion of about 64?% at an ethanol to propylene carbonate mole ratio of 8.0 and a reaction temperature of 303?K. A kinetic model was proposed based on the reaction mechanism. The model parameters were estimated by the Runge-Kutta method. The statistical test showed that the model calculation results were in good agreement with the experimental data.