Return to Abstracts of Patents Return to Abstracts of Patents 750-999 Patent Abstracts804. ------. [GIESEN, J., HANISCH, H., AND DALLY, M.] (I. G. Farbenindustrie A. G.). Purifying Synthetically Produced Alcohols. United States Patent 2,099,475, Nov. 16, 1937. Chem. Abs., vol. 32, 1938. p. 191. In the purification of crude anhydrous alcohols separated from the mixture of alcohols obtained by the catalytic hydrogenation of C oxides, and alcohol of lower boiling point, such as MeOH, is added to the crude alcohol, and the resulting mixture is subjected to fractional distillation. |