181. BEWLEY, T,. AND BRAMWYCHE, P. L. (Distillers Co., Ltd.). Hydrogenation Catalysts by Reduction. British Patent 662,907, Dec. 12, 1951. Chem. Abs., vol. 46, 1952, p. 11513.

Improved hydrogenation catalysts are prepared by the H reduction of a kieselguhr-supported Cu or Ni compound suspended in a liquid containing an organic polysiloxane, preferably polydimethylsiloxane.