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462. ---------------.[CHAKRAVARTY, K. M., AND GHOSH, J. C.] Catalytic Formation of Methane From Carbon Monoxide and Hydrogen. III. Study of Various Catalysts. Quart. Jour. Indian Chem. Soc., vol. 4, 1927, pp. 431-436; Chem. Abs., vol. 22, 1928, p. 1085. Catalysts as follows were invested at 300° on asbestos: Ni(OH)2, Ni(OH)2 and Mn(OH)2, Ni(OH)2 on Mn(OH)2, MnO2 on Ni(OH)2, Ni(OH)2 and Mg(OH)2, Ni(OH)2 on Mg(OH)2, Mg(OH)2 on Ni(OH)2, Ni(OH)2 and Zn(OH)2, Ni(OH)2 on Zn(OH)2, Ni(OH)2 and Pb(OH)2, NH4VO3 on Ni(OH)2, Cr(Oac)3 on Ni(OH)2, (NH4)2MoO4 on Ni(OH)2, Ni(OH)2 and Al(OH)3, Ni(OH)2 on Al(OH)3, Al(OH)3 on Ni(OH)2, Ni(NO3)2 on Al(OH)3. Those with Al were most promising. A rapid fall of activity occurred in all cases. The pumice-sugar carbon-Ni catalyst at 400° did not show marked increase of activity with Ni about 10:2:0.65. Loss of activity was slow, but C always deposited on the catalyst. |