880. GRIFFIN, L. I., Jr. (Standard Oil Development Co.). Catalyst Purification. United States Patent 2,487,867. Nov. 15, 1949; appl. Filed July 11, 1945, Serial No. 604,349; 6 claims (Cl. 260-449.6). Chem. Abs., vol. 44, 1950. p. 1673.

Patent Abstracts

880. GRIFFIN, L. I., Jr. (Standard Oil Development Co.). Catalyst Purification. United States Patent 2,487,867. Nov. 15, 1949; appl. Filed July 11, 1945, Serial No. 604,349; 6 claims (Cl. 260-449.6). Chem. Abs., vol. 44, 1950. p. 1673.

Catalyst contaminated in the reaction of CO and H₂ is reactivated by destructive hydrogenation of the contaminants and treatment with a wash solvent. The temperature for the hydrogenation is 450°-750° F. and the pressure up to 750 p. s. i. The synthesis catalyst also promotes the hydrogenation. 9 United States patents cited.