Hydrogenation catalysts, method for making same and use thereof for preparing hydrogen peroxide
AssigneeSolvay Interox (Societe Anon.)
InventorsVéronique Mathieu, Pascal Pennetreau, Noel Vanlautem
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Abstract
Hydrogenation catalysts based on palladium, platinum or rhodium comprising at least one other metal M which are deposited on zirconium oxide and silicon oxide supports. Process for the manufacture of these catalysts by successive impregnation of the support using palladium, platinum or rhodium and using another metal M. Use of these catalysts in hydrogenation reactions and in particular in preparing hydrogen peroxide.
Claims10
Hydrogenation catalysts based on palladium, platinum or rhodium on a zirconium oxide and silicon oxide support comprising at least one metal M from group IB and wherein the amount of palladium, platinum or rhodium is from 0.1 to 5% by weight with respect to the weight of the catalyst, the amount of metal M is from 0.1 to 5% by weight with respect to the weight of the catalyst, the ratio by weight of the palladium, platinum or rhodium to the metal M is from 0.05 to 20 and the amount of zirconium oxide is from 1 to 10% by weight with respect to the weight of the catalyst.
Process for the manufacture of hydrogenation catalysts based on palladium, platinum or rhodium on a zirconium oxide and silicon oxide support and comprising at least one other metal M from group IB and wherein the amount of palladium, platinum or rhodium is from 0.1 to 5% by weight with respect to the weight of the catalyst, the amount of metal M is from 0.1 to 5% by weight with respect to the weight of the catalyst, the ratio by weight of the palladium, platinum or rhodium to the metal M is from 0.05 to 20 and the amount of zirconium oxide is from 1 to 10% by weight with respect to the weight of the catalyst, the process comprising successively impregnating the palladium, platinum or rhodium and the metal M on a zirconium oxide and silicon oxide support.
Process for the manufacture of hydrogen peroxide using an anthraquinone auto-oxidation process comprising carrying out a reaction using a catalyst based on palladium, platinum or rhodium on a zirconium oxide and silicon oxide support which comprises at least one other metal M from group IB.
Dependencies are inferred from the claim text.