PATENTS

      28.            ARMIT, J. W., WAINWRIGHT, G. E., AND IMPERIAL CHEMICAL INDUSTRIES, LTD, Purification of Alcohols.  British Patent 350,502, Dec. 1929.  Chem. Abs., vol. 26, 1932, p. 5309.

Alcohols, such as those produced by catalytic hydrogenation of Co, are purified by catalytic hydrogenation of Co, are purified by preliminary distillation with caustic alkali (which may be mixed with brine) followed by the addition of small quantities of a primary amine (such as aniline or its homologs) having a boiling point above the distillation temperature of the alcoholic mixture.  Sulfanilic acid and H₃PO₄ or H₂SO₄ may be added to the material also, and it may be refractionated.

ARNOLD. G. B. See abs. 264, 1043, 1044, 1045, 1046, 1047.