693. ------. [FISCHER, F., AND ROELEN, D.] (Studien- und Verwertungs-G. m. b. H.). [Hydrocarbons From Carbon Monoxide and Hydrogen-Temperature Regulation.] German Patent 672,731, Mar. 9, 1939; appl. St. 51,786 filed Feb. 3, 1934 (Cl. 12 o-1.03) : FIAT

Patent Abstracts

693. ------. [FISCHER, F., AND ROELEN, D.] (Studien- und Verwertungs-G. m. b. H.). [Hydrocarbons From Carbon Monoxide and Hydrogen-Temperature Regulation.] German Patent 672,731, Mar. 9, 1939; appl. St. 51,786 filed Feb. 3, 1934 (Cl. 12 o-1.03) : FIAT Reel AASS, frames 03,424-03,427; PB 70,273: Chem. Abs., vol. 33, 1939, p. 6338.

In the catalytic reduction of CO by H₂ to form branched-chain hydrocarbons, the temperature is regulated by heated oil flowing in tubes embedded in the catalyst. Apparatus is indicated.