3859. WALKER, S. W. (Stanolind Oil &Gas Co.). Separation of Organic Oxygenated Compounds From Hydrocarbons. United States Patent 2,535,071, Dec. 26, 1950; appl. filed Aug. 12, 1948, Serial No. 43,947; 12 claims (Cl. 260-450).

Charging stock containing organic oxygenated compound and hydrocarbon is countercurrently contacted with aqueous extractant solution containing in excess of 30% by weight of the defined class of solubilizer salts, and a hydrocarbon reffinate is withdrawn containing a greatly reduced proportion of organic oxygenated compound. The resulting aqueous extract contains the organic oxygenated compound, heavily contaminated with hydrocarbon. This mixture is stripped from the extract and is then contacted with a 2d aqueous extractant solution containing < 30% by weight of the defined class of solubilizer salts. A 2d hydrocarbon raffinate-containing organic oxygenated compound is withdrawn and recycled to the 1^st extraction stage. The 2d aqueous extract contains the organic oxygenated compound in greatly purified form. It is withdrawn, and the depleted extractant is recycled to the 2d extraction stage. 2 United States patents cited.

See abs. 2314.