反应详情

Adding 1,4-pentanediol carbonate and ethanol in a tubular ester exchange reactor; then adding the prepared metal-rare earth oxide composite catalyst, uniformly mixing and performing an ester exchange reaction, then distilling the reaction product to obtain diethyl carbonate, wherein the mole ratio of 1,4-pentanediol carbonate to ethanol is 1:10, and the weight ratio of the metal-rare earth oxide composite catalyst to the total weight of 1,4-pentanediol carbonate and ethanol is 1:100; the ester exchange reaction is performed at a temperature of 180° C. and under an absolute pressure of 2 MPa for 10 minutes; in the ester exchange reaction, the conversion rate of 1,4-pentanediol carbonate is 100%, and yield of diethyl carbonate is 95%.

1. additionuniformly mixing
2. distillationdistilling the reaction product