1887. ------. [KLEMM, R., AND LINCKH, E.] (I. G. Farbenindustrie A. G.). [Iron Catalyts.] German Patent Appl. I 62,893, filed Nov. 12, 1938 (Cl. IV b-12 g). OZ 11,123. Bureau of Mines Transl. T-433, January 1948.

PATENTS

1887. ------. [KLEMM, R., AND LINCKH, E.] (I. G. Farbenindustrie A. G.). [Iron Catalyst.] German Patent Appl. I 62,893, filed Nov. 12, 1938 (Cl. IV b-12 g). OZ 11,123. Bureau of Mines Transl. T-433, January 1948.

Shaped Fe oxides are mixed with activating substances and treated with H₂-containing steam at high temperature, preferably > 600°, and finally reduced (spinel structure).