1725. ------. [INTERNATIONAL HYDROGENATION PATENTS CO., LTD.] [Catalytic Compositions.] French Patent 818,078, Sept. 17, 1937. Chem. Abs., vol. 32, 1938, p. 2304.

Powdered composition consisting of or containing a catalytic material is formed into separate pieces by strong compression, and the pieces are heated to 850° or above, preferably to > 920° , to yield products of high mechanical strength suitable for use at temperatures > about 480° . The powdered starting material must have a melting point > the temperature used in the subsequent heating, or must be converted during the heating stage into a substance having such a melting point. Preferably a powdered catalyst, such as a mixture of a metal of the Fe group with a difficultly reducible basic oxide, is heated with a minor proportion of a substance; for example, an acidic oxide with which it reacts to form a compound of high melting point, and the mixture is heated, crushed, and treated, as described above. Gives examples and numerous details. The process may be applied in the preparation of catalysts for use in reactions such as the destructive hydrogenation of carbonaceous materials, the manufacturer of MeOH from CO and H₂ and the dehydrogenation of hydrocarbons.