Regeneration of spent multimetal oxide oxidation catalysts...

Details Regeneration of spent multimetal oxide oxidation catalysts... Regeneration of spent multimetal oxide oxidation catalysts...

B - Operations, Transporting

01

J

B01J 38/66 (2006.01) B01J 23/90 (2006.01) B01J 23/94 (2006.01) B01J 38/52 (2006.01) B01J 38/62 (2006.01)

Patent

CA 2114680

Abstract of the Disclosure: A process for regenerating spent multimetal oxide oxidation catalysts from the catalytic gas-phase oxidation of lower organic compounds and which, in fresh form, contain as basic constituents the elements Mo, W, V and Cu in oxidic form, by the action of oxidizing agents or means and solubilizing, aqueous ammonia to which acetic acid and/or the ammonium salt thereof has been added, with subsequent drying and calcination, comprises quantitatively determining the content of metallic constituents during the process and making this content up to the respective original value.

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