2106.     LEVI, M. G., PADOVANI, C., AND BUSI, M.  [Synthesis of Hydrocarbons From Carbon Monoxide and Hydrogen at Ordinary Pressure.]  Atti cong. nazl. chim. pura applicata, 3d Cong., 1930, pp. 718-729; Studi ric. comb., vol. 2, 1927-1929, p. 213; Chem. Zentralb., 1931, I, p. 3632; Chem. Abs., vol. 25, 1931, p. 3309.

        Experiments were carried out with a carefully prepared mixture of H₂ and CO under well-controlled conditions.  Following Fischer’s suggestions (abs. 950 and 1021), mixed catalysts were used such as Fe, Co with oxides of Mn or Cr.  The yields of liquid hydrocarbon obtained at 257°-285° are of the order of magnitude of those reported by Fischer.  The predominant formation of low-boiling hydrocarbons is emphasized.  No solid products and comparatively small quantities of gaseous hydrocarbons are formed.  The catalysts become less active if reused in several consecutive runs.  If the unreacted gas mixture of previous experiments is used for a new run, only liquid hydrocarbons are formed.

        LEVIN, H.  See abs. 3392.

        LEVINE, R.  See abs. 3652, 3653.