Process and catalyst for the selective hydrogenation of butynediol to butenediol
AssigneeBASF SE
InventorsMatthias Irgang, Volkmar Menger, Ernest Miesen, Peter Stops, Fritz Graf
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Abstract
A process is disclosed for the selective hydrogenation of butynediol to 2-butene-1,4-diol using a palladium catalyst to which either copper and zinc, or silver and zinc, or copper, silver and zinc are added as doping agents. In the preferred embodiment, it has been possible, by optimizing the composition of the catalyst, to improve the activity and selectivity of the catalysts in question while also eliminating the need to handle toxic substances during the catalyst manufacturing process.
Claims10
A process for the preparation of 2-butene-1,4-diol by hydrogenation of butynediol in the presence of a palladium catalyst, wherein a catalyst is used which, in addition to palladium, contains the elements zinc and copper or zinc and silver or zinc and copper and silver.
Dependencies are inferred from the claim text.