568. DUFTSCHMID, F. (I. G. Farbenindustrie A. G.). [Iron Catalysts for the Conversion of Carbon Monoxide With Hydrogen.] German Patent Appl. I 74,468. OZ 14,034. filed Mar. 2. 1943 (Cl. IV d-12 o). FIAT Reel 172, frames 365-366; PB 25,616.

Patent Abstracts

568. DUFTSCHMID, F. (I. G. Farbenindustrie A. G.). [Iron Catalysts for the Conversion of Carbon Monoxide With Hydrogen.] German Patent Appl. I 74,468. OZ 14,034. filed Mar. 2. 1943 (Cl. IV d-12 o). FIAT Reel 172, frames 365-366; PB 25,616.

Fe catalysts are made from natural Fe ore of predominantly oxide character or from Fe ore that, by roasting or heating with reducing gases at >300º-350º, is converted into the oxide. Example: A magnetic Fe ore is treated with H₂ (0.2 N m.³ per kg. of ore). Through the catalyst thus formed is passed a synthesis gas (CO:H₂=55:45) together with recycled products of a previous operation in the liquid phase at 260º-280º and about 25 atm. About 50% of the synthesis gas is converted, with a yield of 120 gm. of multibranched hydrocarbons per N m.³ of converted synthesis gas, of which about 60% is in the boiling range of gasoline and 30-35% of hydrocarbons with 3 and 4 C atoms.