795.    -------------.  [EIDUS, Y. T., AND ZELINSKII, N. D.]  [Reaction of Carbon Monoxide With Cobalt Catalysts Used in the Synthesis of Gasoline From Water Gas.]  Bull. Acad. Sci. U.R.S.S., Classe Sci. Chim., 1942, pp. 45-54; Chem. Zentralb., 1943, II, p. 1770; Chem. Abs., vol. 37, 1943, p. 2909.

     When CO is passed over a mixture of 100 parts Co, 18 parts ThO2, and 100 parts kieselguhr at 192-272, 2 reactions occur, forming, respectively, Co2C and C.  At 192-212, a carbide formation predominates; but, as the temperature rises, more free C is formed, and at 272, 5 gm.-atoms C form per gm. atom Co.  At this temperature, decomposition of Co2C also occurs.  Poisoning of the catalyst with SO2 also reduces Co2C formation.  Reduction of Co2C by H2 goes faster and at a lower temperature on this catalyst than on pure Co.