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AssigneeRohm and Haas Company
InventorsFernando Antonio Pessoa Cavalcanti, Scott Han, Peter David Klugherz, Andrew Michael Lemonds, Daniel J. Martenak, Elsie Mae Vickery, Donald Lee Zolotorofe
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A mixed metal oxide, which may be an orthorhombic phase material, is regenerated, selectively enriched or selectively poisoned as a catalyst to reduce catalyst aging for the production of unsaturated carboxylic acids, or unsaturated nitrites, from alkanes, or mixtures of alkanes and alkenes, by contacting said mixed metal oxide with a an oxidizing gas such as oxygen, air, steam and combinations thereof is permitted to flow through the catalyst in a regenerator at a temperature of from 300° C. to 600° C. to form said regenerated catalyst.
A process for regenerating a mixed metal oxide catalyst, said process comprising the steps of:
A process for enriching a mixed metal oxide catalyst, said process comprising the steps of:
A process for extending the lifetime of a mixed metal oxide catalyst, said process comprising the steps of:
Dependencies are inferred from the claim text.