PATENTS

2784. -----[ROBERTS, G., JR.] (M.W. Kellogg Co) Catalyst Adapted for Use in the Synthesis of Hydrocarbons From Carbon Monoxide and Hydrogen.United States Patent 2,244,573, June 3, 1941; appl. filed July 18, 1938,Serial No.219,931; 4 claims (Cl. 252-253).Chem. Abs., vol. 35, 1941, p. 5660

        Method of preparing a co-on-kieselguhr catalyst associated with a Th oxide promoter involves forming a solution of Co nitrate from HNO₃ and Co, simultaneously forming Th hydroxide by the reaction or Th sulfate with NH3 treating Th hydroxide and HNO₃ to form Th nitrate with kieselguhr, precipitating Co carbonate and Th carbonate from the agitated mixture upon the kieselguhr, forming a corresponding amount of KNO₃ by addition of K₂CO₃ separating the kieselguhr and Co and Th carbonates precipitated thereon, passing the KNO₃ solution to a HNO₂-recovery operation, returning the HNO₃ to the process, drying the kieselguhr-Co carbonate-Th carbonate precipitate, heating it to decompose the Th and Co carbonates to form oxides, and subjecting the mixture of oxides on the kieselguhr to reduction to reduce the Co but not the Th.Describes arrangement of apparatus.