Return to Abstracts of Patents Return to Abstracts of Patents 500-749 Patent Abstracts514. DREYFUS, H. Acetic Acid. British Patent 262,832. June 13, 1925. British Chem. Abs., 1927, B, p. 125. Chem. Abs., vol, 21, 1927, p. 3906. Equimolecular proportions of CO and H2 are passed under pressures of 50-200 atm. and at temperatures of 200°-300° or somewhat higher, but under 450°, over substances such as Cu oxide, Sn oxide, Ph oxide, Cu acetate, Al methylate, Sn methylate, or their mixtures. |