Return to Abstracts of Patents Return to Abstracts of Patents 1250-1499 Patent Abstracts1287. ------. [I. G. FARBENINDUSTRIE A. G.] Hydrocarbons and Their Oxygenated Derivatives. British Patent 469,618, July 29, 1937. Chem. Abs., vol. 32, 1938, p. 586. In the conversion of oxides of C with H2 particularly for the production of hydrocarbons or their oxygenated derivatives, wet steam is used as an indirect heat-exchange medium for regulating the temperature. |