2107. MANN, A., AND LORENZ, W. (Braunkohle-Benzin A. G.). [Catalytic Synthesis of Hydrocarbons From Carbon Monoxide and Hydrogen.] German Patent 710,128, Sept. 4, 1941; appl. B 181,294, filed Dec. 29, 1937 (Cl. 12 o-1.03). Chem. Abs., vol. 37, 1943, p. 35

PATENTS

2107. MANN, A., AND LORENZ, W. (Braunkohle-Benzin A. G.). [Catalytic Synthesis of Hydrocarbons From Carbon Monoxide and Hydrogen.] German Patent 710,128, Sept. 4, 1941; appl. B 181,294, filed Dec. 29, 1937 (Cl. 12 o-1.03). Chem. Abs., vol. 37, 1943, p. 3589.

Reaction is catalyzed by reduced metals of the Fe group, especially Co. The metal is reduced, then passivated by prolonged treatment with CO₂ at room temperature, followed by careful oxidation with air at room temperature, so that the temperature rise is at the most 3°-7°.