REACTIONS CO/H2 EN PHASE LIQUIDE. SYNTHESE DE PRECURSEURS DE L'ETHANOL PAR HOMOLOGATION DU METHANOL. I. INFLUENCES DE LA TEMPERATURE ET DE LA PRESSION

Article abstract of DOI:10.1016/0022-328X(83)80086-2

The CO/H2 homologation of methanol to acetaldehyde and subsequently to its dimethyl acetal in the presence of cobalt acetate promoted by iodine was examined under various conditions.Temperature and pressure were found as critical parameters.High pressures (140 MPa) and low temperatures (160-170 deg C) give optimal yields and selectivity to acetaldehyde.According to pressure, temperature, contact time, gas ratio and ligand/catalyst ratio, the reaction is oriented towards acetaldehyde, its dimethyl acetal or methyl acetate.