Oxidation catalyst and its preparation

Details Oxidation catalyst and its preparation Oxidation catalyst and its preparation

C - Chemistry, Metallurgy

07

C

C07C 51/25 (2006.01) B01J 23/68 (2006.01) B01J 37/00 (2006.01) C07C 51/215 (2006.01) C07C 53/08 (2006.01)

Patent

CA 2513138

The present invention provides a method of preparation of a supported catalyst composition suitable for the oxidation of ethane to ethylene and/or acetic acid, and/or the oxidation of ethylene to acetic acid, which supported catalyst composition comprises a catalyst, comprising one or more metal components, on a support comprising alpha-~alumina, and which method comprises (a) forming a slurry comprising the one or more metal components, and alpha- alumina support particles or an alpha-alumina support precursor, (b) spray- drying the slurry, and, optionally, (c) calcining the spray-dried slurry to form the supported catalyst composition. The present invention also provides a supported catalyst composition formed by the above method, and a process for the selective oxidation of ethane to ethylene and/or acetic acid, and/or the selective oxidation of ethylene to acetic acid utilising the supported catalyst composition.

Procédé de préparation d'une composition de catalyse supportée adaptée pour l'oxydation d'éthane en éthylène et / ou en acide acétique, et / ou l'oxydation d'éthylène en acide acétique. Ladite composition de catalyse supportée comporte un catalyseur contenant un ou plusieurs constituants métalliques, placé sur un support comportant de l'alpha-alumine. Ledit procédé consiste (a) à former un coulis contenant le (les) constituant(s) métallique(s) et des particules de support en alpha-alumine ou un précurseur de support en alpha-alumine, (b) à sécher le coulis par pulvérisation et éventuellement (c) à calciner le coulis séché par pulvérisation pour former la composition de catalyse supportée. La présente invention concerne également une composition de catalyse supportée formée selon ledit procédé et un procédé d'oxydation sélective d'éthane en éthylène et / ou en acide acétique et / ou l'oxydation sélective d'éthylène en acide acétique à l'aide de ladite composition de catalyse supportée.

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