High pressure oxygen aqueous phase demetallization

Details High pressure oxygen aqueous phase demetallization High pressure oxygen aqueous phase demetallization

B - Operations, Transporting

01

J

252/1.D

B01J 21/20 (2006.01) B01J 29/90 (2006.01) B01J 31/40 (2006.01) C10G 11/02 (2006.01) C10G 35/06 (2006.01) C10G 49/02 (2006.01)

Patent

CA 1151132

HIGH PRESSURE OXYGEN AQUEOUS PHASE DEMETALLIZATION ABSTRACT OF THE INVENTION An improved demetallization process is disclosed comprising high pressure aqueous phase oxidation of a catalyst contaminated with a metal such as nickel, vanadium, copper and/or iron. The metal contaminated catalyst can be oxidized in an aqueous phase at high pressure either before regeneration or subsequent to regeneration. Optionally, an oxidative and reductive wash can also be employed.

345725

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