3856.  WALDEN, G.H., PIERCE, J.A., AND SEGURA, M.A. (Standard Oil Development Co.). Preparation and Regeneration of a Hydrocarbon Synthesis Catalyst. United States Patent 2,488,150, Nov. 15, 1949; appl. filed Nov. 8, 1946, Serial No. 708,630; 6 claims (Cl. 260-449.6). Chem. Abs., vol. 44, 1950, p. 1673.

Catalyst particularly suitable for use un hydrocarbon synthesis process is prepared by mixing finely powdered Al₂O₃ with Fe powder. The mixture is impregnated with a solution of K carbonate so as to obtain 3% alumina and 1% K₂CO₃ on the Fe. The mixture is passed through the flame of an O₂ torch and sintered. The powder is separated from the combustion gases and cooled. Effective flame temperature is 2,500° -3,500° F. If spheres are desired, the flame temperature must be above the fusion point of the fusible powder used. 2 foreign patents and 12 United States patents cited.