The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 09, 2009
Filed:
Feb. 24, 2005
Jung-hwa Kang, Seoul, KR;
Won-ho Lee, Daejeon, KR;
Min-ho Kil, Daejeon, KR;
Sang-heup Moon, Seoul, KR;
Bu-young JO, Seoul, KR;
Jung-Hwa Kang, Seoul, KR;
Won-Ho Lee, Daejeon, KR;
Min-Ho Kil, Daejeon, KR;
Sang-Heup Moon, Seoul, KR;
Bu-Young Jo, Seoul, KR;
LG Chem, Ltd., Seoul, KR;
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.