常压气相羰基化合成碳酸二乙酯

Atmospheric vapor-phase carbonylation synthesis of diethyl carbonate

用积分反应器在固定床连续流动反应体系中进行CO气相催化合成碳酸二乙酯。研究了以各种活性炭为载体的钯催化剂、催化剂浸渍方法和不同催化剂组成对合成碳酸二乙酯催化活性和选择性的影响 ,得到了有发展前景的催化剂。结果表明 ,以逐滴浸渍法 ,使用M3 为助催化剂 ,反应温度 1 0 5～ 1 2 0℃时 ,催化剂有较好的活性和选择性。

The catalytic synthesis of diethyl carbonate in carbon monoxide vapor phase was conducted in the fixed-bed continuous flow system by using an integral reactor.Effects of palladium catalyst supported on different types of active carbon,impregnation methods of catalysts and different catalyst components on the catalytic activity and selectivity of diethyl carbonate were also studied.Catalysts with bright development prospect were developed.Results showed that catalysts made by drip dipping at a temperature of 105-120℃ with M 3 as assistant catalyst had the best properties.