PROCESS FOR PRODUCING GLYOXAL

摘要

Glyoxal is produced in a high yield by bringing a gaseous mixture of ethylene glycol and molecular oxygen diluted with an inert gas into contact with a silver catalyst at high temperatures in the presence of phosphorus or a phosphorus compound to conduct gas phase oxidation. In this process, the use of powdery silver particles having a diameter of 1 x 10<-3> mm or less as at least part of the silver catalyst serves to depress production of a reaction intermediate of glycolaldehyde and increase stability of the reaction.