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Return to Abstracts of Patents Return to Abstracts of Patents 250-499 Patent Abstracts264. ------. BRUNER, F. H., HUSS, H. V., AND ARNOLD, G. B. (The Texas Co.). Separation of Oxygen-Containing Organic Compounds From Aqueous Mixtures. United States Patent 2,605,276. July 29, 1952; appl. filed Aug. 31, 1946; Serial No. 694,408; 1 claim (Cl. 260-450). Synthesis product obtained in the conversion of CO and H2 by contact with a synthesis catalyst is separated into a liquid hydrocarbon phase and a liquid H2O phase by cooling; the H2O phase usually containing the oxygenated compounds ranging mainly 2-8 or more C atoms per molecule and occurring in both the nonacidic aliphatic H2O-soluble form and the acidic aliphatic H2O-soluble form. To separate these 2 forms, the aqueous solution containing them is extracted countercurrently with naphtha at about 175º-300º and under a pressure of about 150 p. s. i. or more, by which means a solvent-rich phase comprising aliphatic alcohols, aldehydes, and ketones, and a H2O phase consisting essentially of H2O and organic acids are obtained. The constituents may then be separated and the individual compounds recovered. For example, the solvent-rich phase may be treated with Na bisulfite solution to remove aldehydes and ketones. Thereafter the solvent-rich phase is extracted with a secondary solvent such as ethylene glycol to separate the alcohols, which are then distilled to recover the individual alcohols. BRUNER, W. M. See abs. 876, 877. |