3086. -----. [RUHRCHEMIE, A.G.] [Process for Regenerating Catalysts for Hydrogenation of Carbon Monoxide] German Patent Appl. R 103,713, PA 884,658, filed Nov. 7, 1938 (Cl.IV d-12 o). FIAT Reel B-196, frames 427-429; PB 83,253; PB Report 412, May 15, 194

PATENT

3086. -----. [RUHRCHEMIE, A.G.] [Process for Regenerating Catalysts for Hydrogenation of Carbon Monoxide] German Patent Appl. R 103,713, PA 884,658, filed Nov. 7, 1938 (Cl.IV d-12 o). FIAT Reel B-196, frames 427-429; PB 83,253; PB Report 412, May 15, 1945.

Regenerating synthesis catalyst in situ by continuing hydrogenation after completing wax removal but with increasing temperature. For example, treating for 2.5 hrs. at 200° C. with a mixture containing 25% N2 and 75% H2; raising the temperature to 350° C. during the period of 1/2 hr. and treating at this temperature for 1/2 hr.; treating 1/2 hr. at 400° C., and finally 2 hr. at 450° C. Original activity is stated to be restored by this procedure. Addition to German Patent Appl. R 97,394 (abs. 3175).