Hydrogenation catalysts and processes therewith

Details Hydrogenation catalysts and processes therewith Hydrogenation catalysts and processes therewith

B - Operations, Transporting

01

J

B01J 23/44 (2006.01) B01J 23/50 (2006.01) B24C 1/04 (2006.01) B24C 11/00 (2006.01) C07C 5/02 (2006.01) C07C 11/02 (2006.01) G03F 7/12 (2006.01) H01L 21/304 (2006.01)

Patent

CA 2217084

A composition and a process for using the composition in a selective hydrogenation of a highly unsaturated hydrocarbon such as, for example, an alkyne or diolefin, to a less unsaturated hydrocarbon such as, for example, an alkene or a monoolefin, are disclosed. The composition comprising palladium, silver, and a spinel wherein the palladium and silver are each present in a sufficient amount to effect the selective hydrogenation of an unsaturated hydrocarbon. Optionally, the palladium is present as skin distributed on the surface of the spinel. The composition can further comprise an alkali metal-containing compound such as, for example, potassium fluoride.

Composition et méthode pour l'utiliser dans l'hydrogénation sélective d'un hydrocarbure fortement insaturé, comme un alcyne ou une dioléfine, en un hydrocarbure moins insaturé, comme un alcène ou une monooléfine. La composition renferme du palladium, de l'argent et un spinelle, le palladium et l'argent étant chacun présent en quantité suffisante pour permettre l'hydrogénation sélective d'un hydrocarbure insaturé. Le palladium est facultativement présent sous forme de peau distribuée à la surface du spinelle. La composition peut également renfermer un composé de métal alcalin, comme le fluorure de potassium.

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