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Return to Abstracts of Patents Return to Abstracts of Patents 1250-1499 Patent Abstracts1324. ------. [I. G. FARBENINDUSTRIE A. G.] [Liquid Hydrocarbons.] French Patent 839,874, Apr. 13, 1939. Chem. Abs., vol. 33, 1939, p. 7814. Liquid hydrocarbons are prepared by polymerizing gaseous olefins using catalysts of the Friedel-Crafts type, using gases that contain more than 30%, preferably 40%, of gaseous olefins and in which the olefins are composed for the greater part of butylenes and/or amylenes, and subjecting the products to a hydrogenation and a treatment with superheated steam in the presence of caustic alkalies. |