2500. NARAGON, E. A., VERGILIO, J. H., AND MILLENDORF, A. J. (The Texas Co.). Regenerating Cobalt Catalysts by Oxidation. United States Patent 2,626,246, Jan. 20, 1953; appl. filed Jan. 29, 1949, Serial No. 73,533; 7 claims (Cl. 252-416).

PATENTS

2500. NARAGON, E. A., VERGILIO, J. H., AND MILLENDORF, A. J. (The Texas Co.). Regenerating Cobalt Catalysts by Oxidation. United States Patent 2,626,246, Jan. 20, 1953; appl. filed Jan. 29, 1949, Serial No. 73,533; 7 claims (Cl. 252-416).

Co catalysts that have been used in conversion of CO, H₂, and olefins to carbonylic products can be regenerated by contact with an O₂-N₂ mixture at 100°-400° F. for at least 4 hr. The O₂-N₂ mixture has a composition of 1-25% O₂ and 75-99% N₂. Air makes a good regenerating gas. The regeneration may be done in situ. 4 United States patents cited.