PATENTS 2868. ----- [RUHRCHEMIE, A. G.] [Catalyst Treatment.] Italian Patent 367,118, no date. Schmidt, J., Das Kohlenoxyd, Akad. Verlafsfesell., Leipzig, 1950, p. 154. Reduced catalysts are cooled in N2 to 30° and then stored in CO2. See French Patent 845,301 (abs. 3163) and German Patent 720,107 (abs. 2137). |