1676. ------. [INTERNATIONAL HYDROCARBON SYNTHESIS CO.] Hydrocarbons. British Patent 536,912, May 30, 1941; appl. filed Jan. 24, 1940. Chem. Abs., vol. 36, 1942, p. 1759.

Hydrogenation of CO is effected in presence of catalysts produced by gradually precipitating a reducible Co compound from a solution of a Co salt during a period of at least 3 hr.