Hydrogenation palladium-silver catalysts and methods for...

Details Hydrogenation palladium-silver catalysts and methods for... Hydrogenation palladium-silver catalysts and methods for...

B - Operations, Transporting

01

J

B01J 23/44 (2006.01) B01J 23/50 (2006.01) B01J 37/22 (2006.01) C07C 5/08 (2006.01) C07C 5/09 (2006.01) B01J 27/13 (2006.01)

Patent

CA 2489374

A catalyst composition comprising palladium, silver and a support material (preferably alumina) is contacted with a liquid composition comprising an iodide component such as ammonium iodide, and the catalyst is then calcined. An improved process for hydrogenation, especially selectively hydrogenating acetylene (to ethylene), using this improved catalyst composition with improved conversion and deactivation.

Une composition de catalyseur contenant du palladium, de l'argent et une matière support (de préférence de l'alumine) est mise en contact avec une composition liquide renfermant un composant de iodure tel que l'iodure d'ammonium ; le catalyseur est ensuite calciné. L'invention concerne un procédé amélioré d'hydrogénation, notamment d'hydrogénation sélective d'acétylène (pour obtenir de l'éthylène), utilisant cette composition de catalyseur améliorée qui présente des taux de conversion et de désactivation accrus.

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