文献类型：期刊文献

中文题名：超临界CO_2与甲醇直接合成碳酸二甲酯

英文题名：Direct Synthesis of Dimethyl Carbonate from Carbon Dioxide and Methanol under Supercritical CO_2 Condition

作者：曹发海[1];刘殿华[1];柯思明[1];房鼎业[1]

机构：[1]华东理工大学化学工程系,上海200237

年份：2000

卷号：26

期号：3

起止页码：248

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;国家哲学社会科学学术期刊数据库;EI(收录号：2000095318262);Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

基金：中国石化集团公司科技研究项目! (× 5980 13);高等学校博士学科点专项基金!资助课题 (970 2 510 5)

语种：中文

中文关键词：碳酸二甲酯;甲醇;超临界二氧化碳;直接合成

外文关键词：carbon dioxide; dimethyl carbonate; methanol; supercritical reaction; reaction mechanism

摘要：以碳酸钾和碘甲烷为催化剂 ,在 CO2 的临界点附近研究了由 CO2 与甲醇直接合成碳酸二甲酯 ( DMC)的新工艺 ,考察了反应温度及反应压力对合成 DMC的影响 ;根据超临界 CO2 所具有的性质 ,讨论了该反应的机理。
The new route of synthesis of dimethyl carbonate by the reaction of methanol with carbon dioxide in the presence of K_2CO_3 and CH_3I near the critical point of CO_2 was studied. The reactions were carried out in a stainless steel autoclave with inner volume of 500 mL provided with a magnetic stirrer and an electric heater. The products were analyzed by means of GC with a thermal conductivity detector. The influences of reaction temperature and pressure on the production of DMC were investigated, respectively. From the viewpoint of the unique characteristic of supercritical CO_2, the reaction mechanism was discussed.