2186. ------. [MCADAMS, D. R., AND SEGURA, M. A.] (Standard Oil Development Co.). Regeneration of Iron Type Hydrocarbon Synthesis Catalyst. United States Patent 2,487,159, Nov. 8, 1949; appl. filed Oct. 9, 1947, Serial No. 778,866; 6 claims (Cl. 260-449.6). Chem. Abs., vol. 44, 1950 p. 2205.

Fe catalyst is removed from the reactor before substantial deposition of C has occurred. The catalyst is treated with steam for 4-12 hr. at 800°-900° F. then heated in oxidizing atmosphere 825°-900° F. The treatments are controlled so as to prevent complete removal of the C but to increase the O content of the catalyst. The C content should be approximately 5%, the O content 25%. The catalyst is then returned to the reaction zone. Reduction, regrinding, and regrading are not necessary. 1 foreign patent and 2 United States patents cited.

MCALEVY, A. See abs. 873.

MCATEER, J. H. See abs. 2403, 2404.

MCGEE, R. V. J. See abs. 441, 442.