3490.     ---------------.  [TSUTSUMI, S.]  Catalysts for the Synthesis of Liquid Hydrocarbons From Carbon Monoxide and Hydrogen.  V.  Selection of Catalysts for the Synthesis.  (1).  Sci. Papers Inst. Phys. Chem. Research (Tokyo), vol. 36, 1939, pp. 178-182; Chem. Abs., vol. 33, 1939, p. 8034.

        Ni catalysts containing 10% of various oxides were prepared by roasting the nitrates and reducing Ni in H₂ at temperatures 300°-700°.  Their activities in the hydrogenation of C₆H₆ at 190° were compared.  The loss of activity resulting from elevation of the reduction temperature was least for Ni-Al₂O₃, followed by Ni-ThO₂, Ni-SiO₂, and Ni-MgO.  The loss for Ni-CuO, Ni-Fe₂O₃ and Ni-ZnO was less than for a Ni catalyst at 300°-550°, but greater at 550°-600°.  Ni-MnO and Ni-CaO lost their activity rapidly as the reduction temperature increased.  The activities of the Ni-metallic oxide catalysts for the synthesis of liquid hydrocarbons from CO and H₂ were only 20% of that of Ni-10% Al₂O₃ catalyst at 210°.