Return to Abstracts of Patents Return to Abstracts of Patents 500-749 Patent Abstracts501. DODGE , B. F. (S. Karpen & Bros.). Catalysts for Methanol Manufacture. United States Patent 1,908,696, May 16, 1933; appl. filed Jan. 16, 1930. Chem. Abs., vol. 27, 1933, p. 3724. Stable highly active catalyst is prepared by reducing Cu carbonate admixed with Zn carbonate in the proportions of at least 2 atoms of Zn to 1 atom of Cu, producing a product containing ZnO and a stable purplish free Cu. |