PATENTS

      1589.  ------.  [I. G. FARBENINDUSTRIE, A. G.]  [Synthesis of Hydrocarbons From Carbon Monoxide and Hydrogen.]  German Patent Appl. -. no date.  German Patent Abridgments, vol. 64, 1943. p. 936: British Coal Utilization and Research Assoc., Monthly Bull., vol. 8, 1944. abs. 8,306.

            Reaction is preferably carried out in narrow tubes, with the catalyst occupying substantially the center of the tubes.