PATENT

3163. -----[RUHRCHEMIE, A.G.] [Protection of Catalysts From Air.] French Patent 845,301, Aug. 18, 1939. Chem Abs., vol. 35, 1941, p. 1196.

Catalysts used in organic reactions, especially those for the synthesis of hydrocarbons from CO and H₂, are protected against the action of air by impregnating them with CO₂ at a temperature below 30°.