PATENTS

      26.       ------.  [ANGLO-IRANIAN OIL CO., LTD.]  Improvements Relating to the Preparation of Catalysts.  British Patent 640,965.  Aug. 2, 1950.  Chem. Abs., vol. 45, 1951. p. 288.

Describes preparation of catalysts for use in hydrogenation of catalysts of the Co molybdate type.  A Co molybdate catalyst is prepared by mixing an aqueous solution of a Co salt with an aqueous solution of a salt of molybdic acid in the presence of NH₃, thereby precipitating Co molybdate and adding more NH₃ to redissolve the precipitate.  The resulting solution is mixed with a support-selected from the class consisting of anhydrous porous Al₂O₃ and mixtures of boehmite, so that the solution is absorbed wholly or in part by the porous Al₂O₃, evaporating to dryness, and heating the impregnated support above 1,000° F. to convert the complex into the desired catalytic form.  The invention attempts to create a catalyst of high activity without using specially prepared Al₂O₃, so that any commercially available porous Al₂O₃ may be used in the preparation of the catalyst.

See abs. 188

APPLIED CHEMICALS, INC.  See abs. 2625.