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US 5,250,483 AGranted
Method for treatment of catalysts using denitrifying bacteria
AssigneeGeo-Microbial Technologies, Inc.
InventorsGeorge T. Sperl, Donald O. Hitzman
Life of this patent
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Abstract
A method of releasing metals from catalysts in a form that is readily recoverable using denitrifying bacteria is disclosed. The method can be used to regenerate catalysts and to recover metals from catalysts, especially molybdenum and nickel.
Claims10
A method for regenerating a catalyst, comprising the step of treating a catalyst containing contaminating metals with a solution containing heterotrophic, denitrifying bacteria to remove said contaminating metals and wherein the activity level of the catalyst is restored.
Dependencies are inferred from the claim text.