PATENT

3647.  STORCH, H. H. (E. I. du Pont de Nemours & Co.).  Copper containing Catalyst Suitable for Use in Methanol Synthesis From Hydrogen and Carbon Monoxide.  United States Patent 1,937,728, Dec. 5, 1933; appl. filed may 16, 1927.  Chem. Abs., vol. 28, 1934, p. 1058.

Cuprammonium salt such as the sulfate or nitrate is treated, as by heating with NaOH, to form a Cu-O compound, and the latter is reduced at a temperature below the melting point of Cu.