Return to Abstracts of Patents Return to Abstracts of Patents 500-749 Patent Abstracts700. ------. [FISCHER, F., AND TROPSCH, H.] [Hydrocarbons.] German Patent 531,004, Aug. 7, 1931; appl. F 59,533, filed Aug. 7, 1925. FIAT Reel AA88, frames 3,738-3,739; PB L70,278: Chem. Abs., vol. 25, 1931, p. 5432. In preparing hydrocarbons from H2 and oxides of C, as described in German Patent 484,337 (abs. 699), mixtures of metals with oxygenated compounds of metals are used as the catalysts; for example, a mixture of Co and ZnO. |