Method of producing a hydrogenation catalyser

B - Operations – Transporting – 01 – J

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260/562, 252/63

B01J 25/00 (2006.01) B01J 37/00 (2006.01) C07B 31/00 (2006.01) C07C 253/30 (2006.01) C07C 255/24 (2006.01)

Patent

CA 2208720

The invention concerns the production of a hydrogenation catalyser based on an aluminium/transition metal alloy. The proposed method involves producing a kneadable material from the alloy and an auxiliary agent, moulding the kneadable material into moulded articles, calcinating these articles and then treating them with an alkali metal hydroxide, using (a) polyvinyl alcohol and water or (b) stearic acid as the auxiliary agent. The invention also concerns methods of hydrogenation and hydrogenolysis, in particular the partial hydrogenation of aliphatic .alpha.,.omega.-dinitriles to .alpha.,.omega.- aminonitriles; and the use of the catalysers thus produced for hydrogenation and hydrogenolysis.

L'invention concerne un procédé de fabrication d'un catalyseur d'hydrogénation à base d'un alliage d'aluminium et d'un métal transitoire. Ce procédé consiste à fabriquer, à partir de l'alliage et d'un adjuvant, une matière pétrissable qui est façonnée pour donner un corps moulé, à calciner ce corps moulé, et à traiter ce corps moulé calciné avec un hydroxyde de métal alcalin, en utilisant comme adjuvant (a) de l'alcool polyvinylique et de l'eau ou (b) de l'acide stéarique. L'invention concerne également un procédé d'hydrogénation et d'hydrogénolyse, en particulier d'hydrogénation partielle de dinitriles alpha, oméga, aliphatiques pour donner des aminonitriles alpha, oméga, aliphatiques. L'invention concerne en outre l'utilisation des catalyseurs produits selon le procédé de l'invention, pour l'hydrogénation et l'hydrogénolyse.

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