A New Catalytic Transesterification for the Synthesis of Ethyl Methyl Carbonate
A New Catalytic Transesterification for the Synthesis of Ethyl Methyl Carbonate
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DOI：
10.1023/b:catl.0000006318.45345.da
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发表时间：
2003-11
影响因子：
2.8
通讯作者：
Zhenlu Shen;X. Jiang;W. Zhao
中科院分区：
文献类型：
--
作者：
Zhenlu Shen;X. Jiang;W. Zhao
以碳酸二甲酯和碳酸二乙酯为原料，在固体碱催化剂的存在下，在液体和气相中进行了一种新的酯交换反应制备碳酸甲酯。在所考察的催化剂中，氧化镁是活性最高的催化剂。用程序升温脱附法测定了固体催化剂的基本性质。结果表明，催化剂上的中等碱性中心对催化性能起着至关重要的作用。
A new transesterification for preparing ethyl methyl carbonate from dimethyl carbonate and diethyl carbonate was carried out in the presence of solid basic catalysts both in the liquid and the vapor phase. Among the catalysts examined, MgO is the most active catalyst. Basic properties of the solid catalysts were measured by temperature-programmed desorption of CO2. The results revealed that the moderately basic sites on the catalysts play a crucial role in catalytic performance.