Patent ID: 6137000
Filing Date: 2000-10-24
Classification: C07C

Abstract:
Vapor-phase carbonylation method for producing esters and carboxylic acids from reactants selected from the group consisting of lower alkyl alcohols having from 1 to 10 carbon atoms, alkane polyols having 2 to 6 carbon atoms, alkyl alkylene polyethers having 3 to 20 carbon atoms and alkoxyalkanols having from 3 to 10 carbon atoms and mixtures thereof, said process comprising contacting the reactants with carbon monoxide in a carbonylation zone of a carbonylation reactor under vapor-phase conditions with at least one solid supported catalyst wherein said at least one catalyst comprises from about 0.01 weight percent to about 10 weight percent each of iridium and a second metal selected from the group consisting of metals having an atomic number of from 57 to 71.