3685.     WHITNER, T. C.  Review of Hydrogenation.  Oil and Soap, vol. 16, 1939, pp. 39-44; Chem. Abs., vol. 33, 1939, p. 2747.

        Brief review of hydrogenation as applied to hardening of vegetable oils, conversion of glycerides or other esters of fat acids into alcohols of high molecular weights, reduction of CO to hydrocarbons or to alcohols and hydrogenolysis of petroleum.  Some mention also is made of the types of catalysts, as well as the operating conditions employed in each instance.  A short outline of various methods for the commercial production of H₂ and its purification is included.