3443. SPICER, W. E., AND MCADAMS, D. R. (Standard Oil Development Co.). [Iron Catalyst for Production of Hydrocarbons From Carbon Monoxide and Hydrogen.] French Patent 969,523, Dec. 21, 1950; appl. filed July 24, 1948. Chem. Zentralb., 1951 I, p. 267

PATENT

3443. SPICER, W. E., AND MCADAMS, D. R. (Standard Oil Development Co.). [Iron Catalyst for Production of Hydrocarbons From Carbon Monoxide and Hydrogen.] French Patent 969,523, Dec. 21, 1950; appl. filed July 24, 1948. Chem. Zentralb., 1951 I, p. 2675.

Roasted pyrite material, such as pyrite, marcasite, or pyrrhotite is pulverized, mixed with an alkaline activating agent, and reduced at 370°-538° in a H₂ atm. with H₂. The temperature is then raised to 870°, and the material treated several hours at this temperature. About 3% of K₂CO₃ is added as the activating agent.