PATENTS
The product of the hydrogenation of CO is cooled to effect substantial condensation of normally liquid components to form a gas phase, an oil-product liquid phase, and a H2O product liquid phase. The phases are separated, and the oil-product liquid phase is extracted, with an aqueous liquor including dissolved organic oxygenated compounds to produce a raffinate comprising hydrocarbons and an aqueous extract comprising additional H2O-soluble oxygenated organic compounds. The H2O and oxygenated organic compounds contained in the aqueous extract are combined with the H2O product liquid phase to produce a mixture comprising organic acids and nonacidic organic compounds. The acids are separated from the non-acidic components of the mixture. See also United States Patent 2,533,675 (abs. 2135). |