2020.  LAYNG, E. T. (Hydrocarbon Research, Inc.). Hydrocarbon Synthesis Using a Spent Ammonia Synthesis Catalyst. United States Patent 2,588,452, Mar. 11, 1952; appl. filed May 10, 1946, Serial No. 668,764; 4 claims (Cl. 260-449.6). Chem. Abs., vol. 46, 1952, p. 5295.

N₂ and H₂ are passed in contact with a particulate Fe catalyst comprising essentially Fe with about 3% Al₂O₃, 1.65% K₂O, 0.23% NaO, and 1.8% SiO₂, the catalyst particles being 200-mesh in size with 60% of the particles passing a 325-mesh screen. While passing the N₂ and H₂ over the catalyst, NH₃ is synthesized until the catalyst becomes inactive. The catalyst is then used without any intervening reducing treatment in the synthesis of liquid products by passing CO and H₂ through a fluidized mass of the catalyst at about 425°-700° F. and a superatmospheric pressure of 250 p. s. i. g. The feed gas comprises essentially 25% CO, 64% H₂, 7% CO₂, and 3.9% CH₄.