Process for the epoxidation of olefins using gold-containing...

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B01J 23/68 (2006.01) B01J 23/66 (2006.01) C07D 301/10 (2006.01)

Patent

CA 2399114

The invention is directed towards a process for the epoxidation of olefins, using molecular oxygen and hydrogen, characterized in that, as catalyst, a compound comprising gold, preferably in nanometer size, on a support material, in which the support material contain one or more element(s) selected from the group consisting of Scandium, Yttrium, Lanthanide, Zirconium, Hafnium, Vanadium, Niobium, Tantalum, Chromium, Molybdenum and/or Tungsten and is essentially free of titanium is applied, and a compound comprising gold, preferably in nanometer size, on a support material, in which the support material contain one or more element(s) selected from the group consisting of Scandium, Yttrium, Lanthanide, Zirconium, Hafnium, Vanadium, Niobium, Tantalum, Chromium, Molybdenum and/or Tungsten and is essentially free of titanium, a process for the preparation of said compounds and a method of catalyzing a chemical reaction through conducting said chemical reaction in the presence of said compound.

L'invention concerne un procédé permettant d'époxyder des oléfines à l'aide d'oxygène et d'hydrogène moléculaires, caractérisé en ce qu'on utilise comme catalyseur, un composé contenant de l'or, de préférence de taille nanométrique, placé sur un support matériel, ledit support matériel contenant au moins l'un des éléments suivants sélectionné dans le groupe constitué par scandium, yttrium, lanthanide, zirconium, hafnium, vanadium, niobium, tantale, chrome, molybdène et/ou tungstène, et étant essentiellement exempt de titane. L'invention concerne également un composé contenant de l'or, de préférence de taille nanométrique, placé sur un support matériel, ledit support matériel contenant au moins l'un des éléments suivants sélectionné dans le groupe constitué par scandium, yttrium, lanthanide, zirconium, hafnium, vanadium, niobium, tantale, chrome, molybdène et/ou tungstène, et étant essentiellement exempt de titane. L'invention concerne enfin un procédé permettant de préparer ces composés, et un procédé permettant de catalyser une réaction chimique par exécution d'une réaction chimique en présence dudit composé.

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