PROCESS FOR PRODUCING AN ALKYLENE CARBONATE

摘要

A process for producing an alkylene carbonate, which comprises reacting an alkylene oxide with carbon dioxide in the presence of a catalyst in a reactor to obtain a reaction mixture containing an alkylene carbonate, the reactor communicating with a process-side channel of a heat exchanger through a piping to form a circulation circuit, wherein the process is characterized in that it further comprises, during or after the reaction, flowing a process liquid through the circulation circuit including the reactor and the process-side channel of the heat exchanger while flowing a heat exchange medium having a temperature of from 140 °C to 200 °C through the heat exchange-side channel of the heat exchanger, thereby maintaining the inner temperature of the process-side channel at 135 °C to 200 °C.