291. BURTON, W. P., MCGRATH, H. G., AND RUBIN, L. C. (M. W. Kellogg Co.). Separation of Organic Acids From Alcohols. United States Patent 2,580,403, Jan. 1, 1952: appl. filed Apr. 30, 1947, Serial No. 745,004; 13 claims (Cl. 260-450).

Patent Abstracts

291. BURTON, W. P., MCGRATH, H. G., AND RUBIN, L. C. (M. W. Kellogg Co.). Separation of Organic Acids From Alcohols. United States Patent 2,580,403, Jan. 1, 1952: appl. filed Apr. 30, 1947, Serial No. 745,004; 13 claims (Cl. 260-450).

Describes a process for separating H₂O-insoluble organic acids from their mixture with H₂O-insoluble alcohols and other oxygenated organic compounds present in the oil or nonaqueous liquid product obtained in the hydrogenation of CO at elevated temperatures. The process comprises the steps of neutralizing such mixtures with a strong alkaline solution to convert the organic acids to their corresponding organic salts, diluting the alkali to obtain desired concentrations, and separating these salts from other oxygenated organic compounds by extracting the latter with a H₂O-insoluble liquid organic or inorganic solvent. Such H₂O-insoluble liquid solvents may be used as SO₂, ethyl acetate, and diethyl ketone. The insolubility of the solvent in the aqueous salt solution and its natural solubility with the layer of oxygenated organic compounds causes the phase separation to take place. The addition of pentane to the acid-oxygenated chemicals mixture enhances the phase separation.

BÜTTNER, A. See abs. 2326,2627,2328.

BUYERS, T. B. See abs. 773.