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.