Catalyst reactivation
AssigneeStamicarbon B.V.
InventorsEngelina C. Kleuskens, Johannes G. H. Maessen, Theodorus J. van de Mond
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Abstract
A process for the reactivation of spent tellurium-containing oxidic catalysts (suitable for oxidation, ammoxidation and/or oxidative dehydrogenation of olefines), wherein a solid particulate tellurium compound especially tellurium oxide compound, is mixed with the spent catalyst to raise the tellurium content thereof to a value of between 90% and 500% of the original catalyst content.
Claims8
A process for the reactivation of a spent oxidic catalyst, which is suitable for oxidation, ammoxidation and/or oxidative dehydrogenation of olefines, which catalyst contains a tellurium oxide and as principal active components antimony and/or iron oxides, said process consisting essentially in mixing the spent catalyst with a solid particulate tellurium compound or with a particulate, solid carrier material containing a tellurium compound, in an amount sufficient to raise the tellurium content, calculated as metal, of the reactivated catalyst to a value between 90% and 500% by weight of the tellurium content of the original, fresh catalyst.
Dependencies are inferred from the claim text.