3177. ----- [RUHRCHEMIE, A.G.] [Regenerating Catalysts.] German Patent Appl. R 101,354, filed Jan. 21, 1938 (Cl. iv d-12 o). PB Report 412, May 15, 1945.

PATENT

3177. ----- [RUHRCHEMIE, A.G.] [Regenerating Catalysts.] German Patent Appl. R 101,354, filed Jan. 21, 1938 (Cl. iv d-12 o). PB Report 412, May 15, 1945.

Spent catalyst, after being freed from paraffin, is discharged and revoked by initial solution of active components in ammonium carbonate solution instead of acid. This is stated to facilitate elimination of impurities, but details are not given.