2185. MCADAMS, D. R., AND SEGURA, M. A. (Standard Oil Development Co.). Process for the Preparation of Catalysts for the Conversion of Carbon Oxides With Hydrogen. United States Patent 2,565,977, Aug. 28, 1951; appl. filed May 12, 1948, Serial No. 26,554;

PATENTS

2185. MCADAMS, D. R., AND SEGURA, M. A. (Standard Oil Development Co.). Process for the Preparation of Catalysts for the Conversion of Carbon Oxides With Hydrogen. United States Patent 2,565,977, Aug. 28, 1951; appl. filed May 12, 1948, Serial No. 26,554; 10 claims (Cl. 252-474).

Fe-type catalysts for the catalytic conversion of CO with H₂ are prepared by mixing subdivided sintered Fe pyrite ashes with about 2-8% C and 3-10% H₂O, subjecting the mixture to combustion with an oxidizing gas at about 2,200°-2,500° F. for about 0.5-2 min., then reducing the Fe oxide with H₂ at about 600°-1,100° F. Before the combustion treatment an alkali metal compound promoter such as K₂CO₃ is added. Besides exhibiting improved physical strength and selectivities comparable to other catalysts, this catalyst is much cheaper to prepare, the cost being about $0.03 per lb. at present, compared with $0.60 for synthetic NH₃ catalyst. Diagram and examples.