975. ------. [HEMMINGER, C. E.] (Standard Oil Development Co.). Hydrocarbon Synthesis and Method of Preparing the Catalyst. United States Patent 2,527,130, Oct. 24, 1950; appl. filed Sept. 22, 1948, Serial No. 50,671; 4 claims (Cl. 260-449.6). Chem.

Patent Abstracts

975. ------. [HEMMINGER, C. E.] (Standard Oil Development Co.). Hydrocarbon Synthesis and Method of Preparing the Catalyst. United States Patent 2,527,130, Oct. 24, 1950; appl. filed Sept. 22, 1948, Serial No. 50,671; 4 claims (Cl. 260-449.6). Chem. Abs., vol. 45, 1951, p. 1326.

Carbonization tendency of Fe catalysts may be depressed by adding small amounts of Si, preferably 3-15% by weight of the Fe. Conventional promoter, 0.1-10% by weight of the total catalyst also may be used. The Si is fused with the other components and the fused ,as cooled, sized, and, if desired reduced, or powdered Si may be mixed with powdered Fe in metallic form and the promoter added by dry mixing or impregnation. The catalyst may be reduced with H₂ at 600º-1,200º F. until 60%-90% of the O₂ is removed. 2 United States patents cited.