B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 23/52 (2006.01) B01J 23/48 (2006.01) B01J 23/66 (2006.01) B01J 29/89 (2006.01) B01J 31/02 (2006.01) B01J 31/12 (2006.01) B01J 35/10 (2006.01) C07D 301/10 (2006.01) C07D 303/04 (2006.01)
Patent
CA 2370796
The invention relates to a method for producing a composition containing mixed oxides that contain gold- and/or silver particles and titanium and silicon and that have been surface-modified in such a way that the composition supports groups selected from the following: silicon alkyl groups, fluorine-containing alkyl groups or fluorine-containing aryl groups; on its surface, to the compositions produced according to this method and to the use of said compositions in methods for the selective oxidation of hydrocarbons in the presence of oxygen and a reduction agent. The catalytically active compositions present consistently high selectivity and productivity.
La présente invention concerne un procédé de préparation d'une composition contenant des particules d'or et/ou d'argent, des mélanges d'oxydes contenant du titane et du silicium, ayant subit une modification de surface, de sorte que la composition comporte des groupes choisis parmi les groupes alkyle de silicium, des groupes alkyle contenant du fluor ou des groupes aryle contenant du fluor. Cette invention concerne également les compositions pouvant être préparées selon ce procédé ainsi que leur utilisation dans un procédé d'oxydation sélective d'hydrocarbures en présence d'oxygène et d'un agent de réduction. Les compositions à action catalytique présentent des sélectivités et productivités constantes élevées.
Schild Christoph
Wegener Gerhard
Weisbeck Markus
Wiessmeier Georg
Aktiengesellschaft Bayer
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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