超临界CO_2直接合成碳酸二甲酯  

Direct synthesis of dimethyl carbonate under supercritical CO_2 condition

作　　者：张楠[1] 张文晶[1] 姜旭萍[1] 姜晓晴[1] 谷聪[1] 魏福祥[1] 

机构地区：[1]河北科技大学环境科学与工程学院,河北石家庄050018

出　　处：《河北科技大学学报》2012年第6期540-543,共4页Journal of Hebei University of Science and Technology

基　　金：河北省科技支撑计划资助项目(08230907Z-2)

摘　　要：考察了在高压反应釜中,以镁为催化剂,甲醇与CO2直接合成碳酸二甲酯的工艺过程。通过单因素试验和正交试验的研究,结果表明:合成碳酸二甲酯各因素的影响顺序为反应温度>反应时间>反应压力,最佳合成条件为反应温度180℃,反应时间7h,反应压力7.5MPa。The synthesis of dimethyl carbonate from phenol and CO2 was studied with magnesium as catalyst in high pressure reaction kettle. Through the single-factor and orthogonal experiments, it is showed that the successive order of different factors influencing the synthesis of dimethyl carbonate is reaction temperature〉 reaction time〉 reaction pressure. The optimal condi- tions are that the reaction temperature is 180 ℃, the reaction time is 7 h, and the reaction pressure is 7.5 MPa.

关 键 词：超临界CO2 合成 碳酸二甲酯 甲醇 

分 类 号：TQ320.2[化学工程—合成树脂塑料工业]