3486.     ---------------.  [TSUTSUMI, S.]  Catalysts for the Synthesis of Liquid Hydrocarbons From Carbon Monoxide and Hydrogen.  I.  Catalysts Prepared by the Precipitation Method.  (1).  Sci. Papers Inst. Phys. Chem. Research (Tokyo), vol. 35, 1939, p. 435-440; Jour. Chem. Soc. Japan, vol. 59, 1938, p. 140; Chem. Zentralb., 1939, I, p. 4752; Chem. Abs., vol. 33, 1939, p. 4747.

        In the synthesis of liquid hydrocarbons from CO and H₂, the rate of the consumption of CO with a U₃O₈ catalyst containing Co 5% and Cu 12%, which need not be reduced at a high temperature, was scarcely increased owing to the addition of kieselguhr.  The yield of liquid hydrocarbons increased gradually with an increase of the amount of kieselguhr.  This fact shows that the proper amount of kieselguhr added to the catalyst suppresses the too violent hydrogenating power of the catalyst for production of liquid hydrocarbons and retards formation of gaseous hydrocarbons and CO₂.