PATENT

3348. ----- [SIMA, G.] [Catalysts.]  Japanese Patent 94,998, Mar. 15, 1932.  Chem. Abs., vol. 27, 1933, p. 2771.

Catalysts are prepared by treating fine pieces of granules of Cu, Fe, Zn, or Ni or their alloys with a volatile acid (NHO₃HCl) or a solution of metallic salts (nitrate or chloride of Cu) and then heating the products at <300°.