文献类型：期刊文献

中文题名：碳酸苯甲酯歧化反应动力学的研究

英文题名：Study on the disproportionation reaction kinetics of methyl phenyl carbonate

作者：陶昭才[1];田恒水[2];朱云峰[2];刘纪昌[2]

机构：[1]安徽理工大学化学工程系,安徽淮南232001;[2]华东理工大学化工学院,上海200237

年份：2003

卷号：23

期号：4

起止页码：56

中文期刊名：安徽理工大学学报（自然科学版）

外文期刊名：Journal of Anhui University of Science and Technology:Natural Science

收录：CSTPCD

语种：中文

中文关键词：碳酸苯甲酯;歧化反应;动力学;碳酸二苯酯;中间产物

外文关键词：methyl phenyl carbonate;disproportionation reaction; kinetics.

摘要：碳酸二甲酯(DMC)与苯酚酯交换反应合成碳酸二苯酯(DPC)技术,已逐渐成为有机合成工业中的热门课题之一,而碳酸苯甲酯(MPC)既是该反应的中间产物又是主要副产物,其本身又发生歧化反应生成DPC和DMC。碳酸苯甲酯歧化反应的速率和转化率直接影响碳酸二苯酯的产率。研究碳酸苯甲酯歧化反应动力学,不仅有助于对DMC与苯酚酯交换反应规律的深入了解,而且可以从理论上指导该反应催化剂的筛选。实验结果表明,碳酸苯甲酯歧化反应动力学方程为:rMPC=0.0146CMPC-0.0577CDMC(mol·L-1·min-1),说明正、逆反应均为一级。
The technology of synthesizing diphenyl carbonate (DPC) by transesterification of dimethyl carbonate(DMC) with phenol has been becoming one of the popular issues in organic synthetic industry. In this technology, methyl phenyl carbonate(MPC) is both the middle and main by-product of the reaction. The rate and conversion of the disproportionation reaction of MPC affect directly the yield of DPC. Studying the disproportionation reaction kinetics of MPC not only can deepen the knowledge of the regularity of transesterification of dimethyl carbonate with phenol, but also guide in theory the selection of the catalyst for the reaction. The result shows that the disproportionation reaction kinetics of methyl phenyl carbonate is as follows: r_(MPC) =0.0146C_(MPC)-0.0577C_(DMC),mol/(L·min),which illuminates that the order of positive and reverse is one.