摘要
在双组分催化剂的作用下 ,由CO2 、甲醇和环氧烷烃直接合成碳酸二甲酯 (DMC)。研究了反应条件对反应的影响 ,得到最佳反应条件为 :反应时间 2h ,温度 1 60℃ ,加入无机碱 7.5g和Lewis酸 5 .0g ,在此条件下DMC的收率达 1 1 .75 %。
Dimethyl carbonate can be directly synthesized from CO2, methanol and epoxide by using a two-component catalyst. Influences of reaction conditions on the yield of DMC were studied, and the optimal conditions were gotten as follows: reaction time 2 h, temperature 160°C, 7.5 g alkali and 5.0 g Lewis acid, then the yield of DMC can reach 11.75%. Reaction mechanism was also studied by changing composition of the catalyst.
出处
《现代化工》
EI
CAS
CSCD
北大核心
2002年第7期30-33,共4页
Modern Chemical Industry
基金
国家自然科学基金资助项目 (2 0 0 72 0 0 5)
关键词
双组分催化剂
碳酸二甲酯
直接合成
环氧烷烃
二氧化碳
Carbon dioxide
Catalysts
Composition
Optimization
Reaction kinetics
Synthesis (chemical)
