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:
Feb. 23, 2021
Filed:
Mar. 15, 2017
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Jun Kyu Han, Daejeon, KR;
Dong Hyun Ko, Daejeon, KR;
Kyong Yong Cha, Daejeon, KR;
Myung Ji Suh, Daejeon, KR;
Sun Hwan Hwang, Daejeon, KR;
Seong Min Kim, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 23/745 (2006.01); B01J 37/03 (2006.01); B01J 23/78 (2006.01); B01J 23/80 (2006.01); B01J 23/75 (2006.01); B01J 23/889 (2006.01); B01J 27/053 (2006.01); B01J 27/10 (2006.01); B01J 27/25 (2006.01); B01J 35/02 (2006.01); B01J 35/10 (2006.01); B01J 37/00 (2006.01); B01J 21/00 (2006.01); B01J 21/10 (2006.01); B01J 35/00 (2006.01); B01J 37/08 (2006.01); C07C 5/48 (2006.01); B01J 23/00 (2006.01); B01J 23/85 (2006.01);
U.S. Cl.
CPC ...
B01J 23/745 (2013.01); B01J 21/005 (2013.01); B01J 21/10 (2013.01); B01J 23/005 (2013.01); B01J 23/75 (2013.01); B01J 23/78 (2013.01); B01J 23/80 (2013.01); B01J 23/85 (2013.01); B01J 23/8892 (2013.01); B01J 27/053 (2013.01); B01J 27/10 (2013.01); B01J 27/25 (2013.01); B01J 35/0006 (2013.01); B01J 35/023 (2013.01); B01J 35/1009 (2013.01); B01J 37/009 (2013.01); B01J 37/031 (2013.01); B01J 37/088 (2013.01); C07C 5/48 (2013.01); C07C 2523/745 (2013.01); C07C 2523/80 (2013.01);
Abstract
The present invention relates to a method of preparing a catalyst for oxidative dehydrogenation. More particularly, the present invention provides a method of preparing a catalyst for oxidative dehydrogenation providing superior selectivity and yield for a conjugated diene according to oxidative dehydrogenation by constantly maintaining pH of a coprecipitation solution using a drip-type double precipitation method to adjust an α-iron oxide content in a catalyst in a predetermined range.