Return to Abstracts of Patents Return to Abstracts of Patents 500-749 Patent Abstracts515. ------. [DREYFUS, H.] Acetic Acid. United States Patent 1,896,224, Feb. 7, 1933; appl. filed May 27, 1926. Serial No. 112,166. Chem. Abs., vol. 27, 1933. P. 2458. Mixture of about equimolecular proportions of H2 and CO is heated under pressure to 100°-450° in the presence of a contact mass containing a metal acetate or a metal compound capable of forming an acetate decomposable at temperatures < 450°. |