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:
Oct. 01, 2019
Filed:
Oct. 17, 2017
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Byung Yul Choi, Daejeon, KR;
Hyun Jong Shin, Daejeon, KR;
Junghoon Chang, Daejeon, KR;
Young Hyun Choe, Daejeon, KR;
Jun Seok Ko, Daejeon, KR;
Sang Hun Jeon, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 45/35 (2006.01); C07C 51/00 (2006.01); B01J 23/00 (2006.01); C07C 51/25 (2006.01); B01J 8/06 (2006.01); B01J 23/887 (2006.01); B01J 37/02 (2006.01); B01J 37/03 (2006.01); B01J 37/04 (2006.01); B01J 37/08 (2006.01);
U.S. Cl.
CPC ...
C07C 51/252 (2013.01); B01J 8/067 (2013.01); B01J 23/8876 (2013.01); B01J 37/0236 (2013.01); B01J 37/038 (2013.01); B01J 37/04 (2013.01); B01J 37/08 (2013.01); C07C 45/35 (2013.01); B01J 2208/0053 (2013.01); B01J 2208/00212 (2013.01); B01J 2208/00221 (2013.01); B01J 2208/00238 (2013.01); B01J 2208/00849 (2013.01); B01J 2208/021 (2013.01); B01J 2208/025 (2013.01); B01J 2208/065 (2013.01); B01J 2523/00 (2013.01);
Abstract
The present invention relates to a method for producing unsaturated aldehydes and unsaturated carboxylic acids. According to the present invention, a method for producing unsaturated aldehydes and unsaturated carboxylic acids which can impart activity and control temperature independently in fixed catalyst layer zones in a shell-and-tube reactor, thereby exhibiting improved yield and operation stability, is provided.