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 1349.    HAMAI, S., HAYASHI, S., AND SHIMAMURA, K.  Physicochemical Investigations of Catalytic Mechanisms.  VIII.  Fischer-Tropsch Synthesis of Hydrocarbons With Special Reference to the Durability of Catalyst.  Bull. Chem. Soc. Japan, vol. 17, 1942, pp. 451-461; Chem. Abs., vol. 41, 1947, p. 4367.

       Reaction (I), CH₂→C₂H₄, is faster than (II), CH₂→CH₄.  In the normalized reaction (I) is predominant under various conditions of stage of reaction, temperature, etc., whereas (II) is predominant at the initial stage and as the reaction becomes normalized.  (II) must be prohibited when the reaction mixture, CO+H₂=(1:2), is passed through the catalysts, Co+15% ThO₂+100% kieselguhr or Co+12% U₃O₈+2.8% Cu+100% kieselguhr, each separately at 190°-250°.