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Return to Abstracts of Patents Return to Abstracts of Patents 500-749 Patent Abstracts542. ------. [DREYFUS, H.] Methanol. United States Patent 1,738,989, Dec. 10, 1929; appl. filed May 27, 1926. Chem. Abs., vol. 24, 1930, p. 865. A gaseous mixture containing H2 and CO in about equimolecular proportions is subjected to the action of heat and pressure in the presence of ZnO as sole catalyst. |