924. HALE, C. H. (Standard Oil Development Co.). Iron Removal From Aldehyde Synthesis Process. United States Patent 2,604,491, July 22, 1952; appl. filed Apr. 1, 1949, Serial No. 84,878; 14 claims (Cl. 260-598).

Patent Abstracts

924. HALE, C. H. (Standard Oil Development Co.). Iron Removal From Aldehyde Synthesis Process. United States Patent 2,604,491, July 22, 1952; appl. filed Apr. 1, 1949, Serial No. 84,878; 14 claims (Cl. 260-598).

In the 3-stage process for conversion of CO, H₂, and olefins to oxygenated organic compounds, the products of the 1^st step containing dissolved salts and the carbonyls and molecular complexes of the metal catalyst are treated in the 2d step to remove the dissolved catalyst material form the mixture before the 3d or hydrogenation step. To accomplish this the primary reaction product, from which the bulk of the dissolved metal has been removed by heat treatment and stripping, is treated in a reflux zone with an aqueous alkaline treating agent at temperatures ranging from room temperature to the boiling point of the effluent, whereby a precipitate of Fe and Co hydroxide is obtained with recovery of a liquid product comprising oxygenated organic compounds substantially free of dissolved and dispersed Co and Fe. The alkaline treating agent may be an alkali metal hydroxide or carbonate, or an organic derivative of NH₃, such as tetra-alkyl ammonium hydroxide.