Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Reexamination Certificate
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.
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patent: 6043186 (2000-03-01), Komada et al.
patent: 1192986 (2002-04-01), None
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Translation of Japanese Laid-Open Patent Application No. 11-43314 (Feb. 16, 1999).
Gaffney Anne Mae
Heffner Michele Doreen
Song Ruozhi
Bodner Marcella
Holler Alan
Rohm and Haas Company
Saeed Kamal A.
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