化工进展2012,Vol.31Issue(5):1061-1064,4.
MgO/NaY催化甲醇与碳酸乙烯酯酯交换合成碳酸二甲酯
Efficient synthesis of dimethyl carbonate via the transesterification of ethylene carbonate with methanol over MgO/NaY catalyst
摘要
Abstract
MgO/NaY catalysts prepared via wet impregnation method have been investigated for the catalytic synthesis of dimethyl carbonate (DMC) by the methanol with ethylene carbonate (EC) . Several techniques, including CO2-TPD, TEM, were applied to characterize the structure and basic properties of the as-synthesized catalysts. The effects of MgO loading amount, reaction temperature, reaction time, and the ratio of methanol to EC on the catalytic performance have been studied. The results demonstrated that the MgO-loading amount played an important role on the dispersion of MgO species and the basic property of catalysts. The best catalytic performance was obtained over the 12% MgO/NaY catalyst under 70 ℃ with a ratio of methanol to EC of 8 : 1, affording a remarkable DMC yield of 89%.关键词
氧化镁/甲醇/碳酸乙烯酯/碳酸二甲酯Key words
MgO/methanol/ethylene carbonate/dimethylcarbonate分类
化学化工引用本文复制引用
倪蓓,许杰,薛冰,刘平,李永昕..MgO/NaY催化甲醇与碳酸乙烯酯酯交换合成碳酸二甲酯[J].化工进展,2012,31(5):1061-1064,4.基金项目
国家自然科学基金(21076027)、中国石油科技创新基金(2011D-5006-0508)及江苏省高校自然科学研究基金(11KJDl50001)项目. ()