Annealed and promoted catalyst

Details Annealed and promoted catalyst Annealed and promoted catalyst

2008-03-25

2008-03-25

Saeed, Kamal A. (Department: 1626)

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

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

C502S312000, C558S323000

Reexamination Certificate

active

07348292

ABSTRACT:
A mixed metal oxide, which may be an orthorhombic phase material, is improved as a catalyst for the production of unsaturated carboxylic acids, or unsaturated nitriles, from alkanes, or mixtures of alkanes and alkenes, by: contacting with a liquid contact member selected from the group consisting of organic acids, alcohols, inorganic acids and hydrogen peroxide to form a contact mixture; recovering insoluble material from the contact mixture; calcining the recovered insoluble material in a non-oxidizing atmosphere; admixing the calcined recovered insoluble material with (i) at least one promoter element or compound thereof and (ii) at least one solvent for the at least one promoter element or compound thereof; removing the at least one solvent to form a catalyst precursor; and calcining the catalyst precursor.

REFERENCES:
patent: 5281745 (1994-01-01), Ushikubo et al.
patent: 5380933 (1995-01-01), Ushikubo et al.
patent: 6043186 (2000-03-01), Komada et al.
patent: 1192986 (2002-04-01), None
patent: 7-53448 (1995-02-01), None
Translation of Japanese Laid-Open Patent Application No. 6-228073 (Aug. 16, 1994).
Translation of Japanese Laid-Open Patent Application No. 10-330343 (Dec. 15, 1998).
Translation of Japanese Laid-Open Patent Application No. 11-43314 (Feb. 16, 1999).

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