Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Reexamination Certificate
2003-01-03
2008-03-11
Nguyen, Cam N. (Department: 1793)
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
07341974
ABSTRACT:
The present invention relates to a method for preparing a catalyst for partial oxidation of propylene, particularly a method for preparing a catalyst for preparing an acrylic acid, using an organic acid such as a citric acid, maleic acid and oxalic acid. The complex oxide catalyst according to the invention, when used in the gas phase catalytic oxidation of propylene, may produce acrolein in high yield.
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Choe Young Hyun
Choi Byung Yul
Kang Jung Hwa
Kil Min Ho
Lee Won Ho
LG Chem Ltd.
Nguyen Cam N.
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