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Return to Abstracts of Patents Return to Abstracts of Patents 1000-1249 Patent Abstracts1215. ------. [I. G. FARBENINDUSTRIE A. G.] [Cracking Hydrocarbons.] French Patent 852,269, Jan. 27, 1940. Chem. Abs., vol. 36, 1942, p. 3036. Hydrocarbons rich in H (containing 15 gm. H for 100 gm. C) are cracked in presence of known very active catalysts, the activity of which has been diminished by a previous cracking of hydrocarbons poor in H in liquid or vapor phase. |