Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Reexamination Certificate
2005-02-24
2009-06-09
Wilson, James O (Department: 1624)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
C502S313000, C502S314000, C502S315000, C502S316000, C502S321000
Reexamination Certificate
active
07544633
ABSTRACT:
The present invention relates to a catalyst for partial oxidation and a preparation method thereof, more particularly to a preparation method of a complex metal oxide catalyst that shows high activity for conversion of propylene or isobutylene, maintains good selectivity for such unsaturated aldehyde as acrolein or methacrolein and improves production yield of such unsaturated carboxylic acid as acrylic acid or methacrylic acid through stable process by using a drying control chemical additive.
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Jo Bu-Young
Kang Jung-Hwa
Kil Min-Ho
Lee Won-Ho
Moon Sang-Heup
LG Chem Ltd.
McKenna Long & Aldridge LLP
Sackey Ebenezer
Wilson James O
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