PATENTS

      1490.   ------.  [I. G. FARBENINDUSTRIE, A. G.]  [Production of     Low-Boiling Liquid Hydrocarbons.]  German Patent Appl. I 63,778. OZ 11,353. filed Feb. 11, 1932 (Cl. 12 o-1.03).  FIAT Reel K 30. 7,620-7,623: PB 73,587.

            Catalysts are produced by gradual precipitation from Co salt solutions over a precipitation time of >3 hr.