文献类型：期刊文献

中文题名：Ti(OC_4H_9)_4-PbO均相催化反应蒸馏合成碳酸二苯酯

英文题名：Synthesis of diphenyl carbonate in homogeneous catalyst Ti(OC_4H_9)_4-PbO under reactive distillation condition

作者：陶昭才[1];田恒水[2];朱云峰[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：2004

卷号：34

期号：2

起止页码：71

中文期刊名：山东大学学报（工学版）

外文期刊名：Journal of Shandong University（Engineering Science）

收录：CSTPCD

基金：安徽理工大学校人才基金项目 (DG5 43 )

语种：中文

中文关键词：碳酸二苯酯;碳酸二甲酯;酯交换

外文关键词：diphenyl carbonate; dimethyl carbonate; transesterification

摘要：通过对碳酸二甲酯与苯酚酯交换法反应蒸馏合成碳酸二苯酯的研究 ,筛选合适的催化剂和寻找最佳的工艺条件 ,为将来碳酸二苯酯的工业化打下基础 .实验结果表明 :在常压下 ,温度 132℃ ,原料中苯酚与碳酸二甲酯的摩尔配比为 2∶1,苯酚与催化剂的摩尔配比为 1∶0 .0 12 ,钛酸四丁酯与氧化铅的摩尔配比为 1∶1,反应时间 12h ,碳酸二甲酯总转化率为 4 5 .4 3% ,碳酸二苯酯产率为 2 6 .33% ,碳酸苯甲酯产率为 19.10 % ,碳酸二苯酯的选择性为 5 7.96 % ,且无苯甲醚和CO2 生成 .所选催化剂Ti(OC4H9) 4 PbO的催化性能明显优于二丁基二月桂酸锡和PbO .
By means of investigating synthesis of diphenyl carbonate with transesterification of dimethyl carbonate and phenol under reactive distillation condition, suitable catalyst was selected and optimum processing conditions were determind, providing a foundation for the industrialization of diphenyl carbonate. The results show that the molecular ratio of phenol and dimethyl carbonate is 2∶1 at atmospheric pressure, the molecular ratio of phenol and catalyst is 1∶0.012, the molecular ratio of Ti(OC 4H 9)4 and PbO is 1∶1, the reaction temprature is 132?℃, the reaction time is 12?h, the total coversion rate of DMC is 45.43% with DPC yield of 26.33% and selectivity of 57.96%. No anisole was observed in the product mixture. The catalysis performance of selected catalyst Ti(OC 4H 9) 4-PbO is prior to dibutyltin dilaurate and PbO obviously.