3231. SAUTER, E., AND DENKER, H. ( Braunkohle-benzin A. G.). [Regeneration of Catalysts.] German Patent 738,813, July 29, 1943 (Cl. 12 g-4.01) Chem. Abs., vol. 39, 1945, p. 5461.

PATENT

3231. SAUTER, E., AND DENKER, H. ( Braunkohle-benzin A. G.). [Regeneration of Catalysts.] German Patent 738,813, July 29, 1943 (Cl. 12 g-4.01) Chem. Abs., vol. 39, 1945, p. 5461.

C- and tar-poisoned catalysts are generated by treatment with hot oxidizing gases.