PATENTS

      1421.  ------.  [I. G. FARBENINDUSTRIE, A. G.]  [Process for Producing Antiknock Gasoline.]  German Patent Appl. I 69,074. OZ 12,621, filed Mar. 7, 1941 (Cl. IV d-23 b).  FIAT Reel 165, frames 3,585-3,586; PB 66,693

            In an improvement of the process of the main German Patent Appl. I 62,611 for the production of antiknock gasoline from the gasolines produced from gas mixtures containing CO and H2 with Fe catalysts by passing them in vapor state over alumina or magnesia or Zn oxide or Al phosphate at temperatures 300º-400º, the temperatures are raised 400º-450º, suitably up to 440º.  Similar results are obtained as in the main patent.