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Patent Abstracts

      571.  ------.  DUFTSCHMID, F., LINCKH, E., AND WINKLER, F. (I. G. Farbenindustrie A. G.).  [Conversion of Carbon Monoxide With Hydrogen.]  German Patent Appl. I 64,241. OZ 11,661. filed Mar. 31, 1939 (Cl. IV d-12 o): APC TC 1,225.  TOM Reel 134, frames 495-497; Bureau of Mines Transl. T-433, January 1948.

            In the hydrogenation of CO to hydrocarbons with recycling of liquid hydrocarbons through the catalyst bed, the relatively high boiling hydrocarbon products are withdrawn from the system instead of being recycled, preferably by separation from the hot gases directly at the outlet of the reaction zone.