928. HANFORD, W. E. (M. W. Kellogg Co.). Dehydration of Organic Acids. United States Patent 2,578,698, Dec. 18, 1951; appl. filed Sept. 24, 1948, Serial No. 51,107; 13 claims (Cl. 260-450).

Patent Abstracts

928. HANFORD, W. E. (M. W. Kellogg Co.). Dehydration of Organic Acids. United States Patent 2,578,698, Dec. 18, 1951; appl. filed Sept. 24, 1948, Serial No. 51,107; 13 claims (Cl. 260-450).

Aqueous solution of a fatty organic acid obtained in the catalytic hydrogenation of CO is separated by contacting the solution with a solvent comprising a dialkyl amide of an organic acid to produce and extract phase and a raffinate phase and then separating the phases. Example: 100 cc. of an aqueous solution of acetic acid was admixed with 100 cc. of dimethylamide of oleic acid, the mixture was allowed to settle in an extract phase and a raffinite phase, and these were separated. The partition ratio used in judging the extraction efficiency (defined as the gm. of acetic acid per 100 cc of the extract, or solvent, layer, divided by the gm. of acetic acid per 100 cc. of the raffinate, or H₂), layer was found to be 1.18, whereas the % of H₂O present in the 2 phases were found to be 5.2 and 94.7% respectively. Gives other examples utilizing the dimethylamides of tolystearic and of phenylstearic acids.

HANISCH, F. See abs. 2815, 2816, 2819, 2820, 2821.