PATENTS

      1483.  ------.  [I. G. FARBENINDUSTRIE, A. G.]  [Production of Antiknock Gasoline from the High Boiling Oils of Carbon Monoxide Hydrogenation.]  Italian Patent 385,590, Oct. 25, 1940.  Chem. Zentralb., 1942, II. p. 1202.

            These oils are first passed at 200º-450º without essential cracking over dehydrogenating and isomerizing catalysts.  For this purpose catalysts are advantageously used that have already served for the cracking of previously treated products.  As cracking catalysts natural or artificial bleaching earths are preferably used.