FIELD: physical or chemical processes.
SUBSTANCE: present invention relates to a composite catalyst comprising carbon as a continuous phase and Raney alloy particles as a dispersed phase. Described is a composite catalyst used after activation as Raney catalyst, including carbon as a continuous phase and Raney alloy particles as a dispersed phase, in which Raney alloy particles are dispersed in the continuous carbon phase and in which carbon as a continuous phase is obtained by carbonising at least one carbonisable organic substance, which is an organic polymer, and the Raney alloy includes at least one Raney metal selected from the group consisting of nickel, cobalt, copper and iron and at least one leachable element selected from the group consisting of aluminium, zinc and silicon. Also described is a method of activating said catalyst, comprising treating the composite catalyst with an aqueous alkaline solution with a concentration of 0.5 to 50 % by weight. Described is Raney activated catalyst suitable for hydrogenation, dehydrogenation, amination, dehalogenation, or desulphurisation, obtained by the above method. Also described is a method for producing said composite catalyst, comprising: a) preparation of a curable composition, wherein the curing composition or its cured product includes carbonisable organic substance, which is an organic polymer; b) mixing the Raney alloy particles with the cured composition from step a), and then curing the resulting mixture and optionally grinding the cured mixture to obtain a catalyst precursor; c) and carbonising the catalyst precursor from step b) in an inert atmosphere to obtain a composite catalyst, wherein the Raney alloy includes at least one Raney metal selected from the group consisting of nickel, cobalt, copper, and iron and at least one leachable element selected from the group consisting of aluminium, zinc, and silicon. Described is Raney activated catalyst suitable for hydrogenation, dehydrogenation, amination, dehalogenation, or desulphurisation, obtained by the above method. Described is the use of said activated Raney catalyst hydrogenation, dehydrogenation, amination, dehalogenation or desulphurisation reactions.
EFFECT: producing a catalyst with suitable particle strength, high catalytic activity and suitable selectivity.
23 cl, 1 dwg, 3 tbl, 8 ex
