Regeneration of spent multimetal oxide oxidation catalysts from

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

1994-02-01

1996-04-30

McFarlane, Anthony

Catalyst, solid sorbent, or support therefor: product or process

Regenerating or rehabilitating catalyst or sorbent

Treating with a liquid or treating in a liquid phase,...

502 28, 502 38, B01J 2034

Patent

active

055125255

ABSTRACT:
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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patent: 4425255 (1984-01-01), Toyoda et al.
patent: 4529714 (1985-07-01), Mross et al.
patent: 4814305 (1989-03-01), Kamogawa et al.
patent: 4861938 (1989-08-01), Lewis et al.
patent: 5324695 (1994-06-01), Karrer et al.

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