METHOD AND DEVICE FOR PREPARING PHOSGENE

摘要

In the production of phosgene by reacting chlorine and carbon monoxide in the presence of an activated charcoal catalyst in a tube aggregate reactor with several reaction tubes surrounded by a coolant chamber, (a) the reaction tubes are cooled externally by evaporation cooling with water in the coolant chamber and (b) the reaction tubes operate at a pressure higher than that in the coolant chamber. An independent claim is also included for the plant used.