2717.     ---------------.  [PLOTNIKOV, V. A., IVANOV, K. N., AND POSPEKHOV, D. A.]  [Synthesis of Methanol in Presence of Copper, Zinc Oxide, and Chromic Oxide Catalysts.]  Jour. Chem. Ind. (U.S.S.R.), vol. 8, 1931, pp. 119-126; Chem. Abs., vol. 25, 1931, p. 5661.

        Results of experiments show that the optimum proportions of ZnO:Cr₂O₃ with respect to activity are 11:1; to reach the highest activity they have to constitute 30% of the catalyst.  Conversion of CO into combustible liquids (mostly MeOH) is highest at ZnO:Cr₂O₃=3:1 and 60-70% Cu, but the quality of the products is highest at 55% Cu.  The velocity of the reaction increases with excess of H₂; the yield of MeOH and other combustible liquids also is increased, and the % CO₂ is decreased.  The best temperature is 265°; above 280° the quality of the products of reaction is lowered considerably; below 250° the velocity is too low.  The maximum of CO conversion, that of activity of the catalyst, and that of its stability, do not coincide.  The stability is increased by addition of Na₂SiO₃ but the catalytic qualities are lowered.

        PODGURSKI, H. H.  See abs. 2010.