3255.----- .SCHEELINE, H. W., ETHERINGTON, L. D. , AND MORGAN, J. P. (Standard Oil Development Co.). Recovery of Fatty Acids From Dilute Aqueous Solutions. United States Patent 2,526,508, Oct. 17, 1950; appl. filed Aug. 19, 1948, Serial No. 45,036; 5 c

PATENT

3255.----- .SCHEELINE, H. W., ETHERINGTON, L. D. , AND MORGAN, J. P. (Standard Oil Development Co.). Recovery of Fatty Acids From Dilute Aqueous Solutions. United States Patent 2,526,508, Oct. 17, 1950; appl. filed Aug. 19, 1948, Serial No. 45,036; 5 claims (Cl. 260-540).

This invention deals with a solvent extraction process for concentration of a lower fatty acid or a mixture of lower fatty acids present in the dilute aqueous solution. A high-boling polar organic solvent is used as extractant. such solvents are methyl cyclohexanone, b. p. 165° C: furfural, b. p. 162° C: isophorone, b. p. 215° C: the cresols and C₅—C₁₂ carboxylic acids. 1 literature ref. and 10 United States patents cited.