PATENT

3372. ----- [SOCIETÀ ITALIANA RICERCHE INDUSTRIALI]  [Catalyst.]  Swiss Patent 162,460, Sept. 1, 1933.  Chem. Abs., vol. 28, 1934, p. 590.

Catalyst suitable for use in the synthesis of NH₂ is prepared by fusing natural or synthetic magnetite and reducing so that the product does not contain an excess of FeO over Fe₂O₃.