878. GRESHAM, W. F., Brooks, R. E., AND DU PONT DE NEMOURS. E. I., & CO. Catalytic Production of Aldehydes. Acetals and Alcohols. British Patent 637,999. May 31, 1950. Chem. Abs., vol. 44. 1950, p. 9473.

Patent Abstracts

CO, Ni, and Fe carbonyls are effective and recoverable catalysts for the liquid-phase reaction of an olefin, CO and H₂. Ketones are inhibited at pressures >375 atm., and the products are mainly aldehydes. H₂, CO, and C₂H₄ in a molar ratio 1 : 2 : 1 led through a CU-lined tube concurrently with 2% Co carbonyl in xylene at 140º and 700 atm. gave 48.5% conversion of C₂H₄; yield of propionaldehyde 3.15 lb. per. hr. per ft.³.