764. GAMBURG, D. Y. [Iron Catalyst.] Russian Patent 68,429, May 31, 1947. Chem. Abs., vol. 43, 1949, p. 5135.

Patent Abstracts

Molten magnetite, together with activating additions, is cast into sheets. The latter are oxidized with steam and then reduced at a temperature not above 450º by the method of Russian Patent 54,406 (abs. 765).