PATENTS

      1615.  ------.  [I. G. FARBENINDUSTRIE, A. G.]  [Working Up the Products of Hydrogenation.]  German Patent Appl. I 66,305. OZ 11,960, filed Jan. 18. 1940 (Cl. 23 b).  FIAT Reel 172, frames 97-98: PB 25,616.

            Hydrocarbon oils obtained by the pressure hydrogenation or extraction of coal or by synthesis from CO and H₂ are converted into high-grade fuels suitable for aviation gasoline by hydrogenation cracking or reforming at temperatures of 400º-500º and pressures of 15-100 atm. in the presence of catalysts consisting of the oxides or sulfides of metals of groups 6 and 8 such as Ni and W sulfides at a throughput of about 1 1. per 1. of catalyst per hr.