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:
Jan. 09, 2024
Filed:
Jul. 13, 2020
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Sang Jin Han, Daejeon, KR;
Dong Hyun Ko, Daejeon, KR;
Kyong Yong Cha, Daejeon, KR;
Ye Seul Hwang, Daejeon, KR;
Sunhwan Hwang, Daejeon, KR;
Assignee:
LG Chem, Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 23/80 (2006.01); B01J 23/00 (2006.01); B01J 37/00 (2006.01); B01J 37/02 (2006.01); B01J 37/03 (2006.01); B01J 37/06 (2006.01); B01J 37/08 (2006.01); C07C 5/48 (2006.01);
U.S. Cl.
CPC ...
B01J 23/80 (2013.01); B01J 23/005 (2013.01); B01J 37/009 (2013.01); B01J 37/0236 (2013.01); B01J 37/031 (2013.01); B01J 37/06 (2013.01); B01J 37/08 (2013.01); C07C 5/48 (2013.01); C07C 2523/80 (2013.01);
Abstract
A method for preparing a zinc ferrite-based catalyst comprising: obtaining a precipitate by bringing a metal precursor solution including a zinc precursor, a ferrite precursor, a solution containing an acid and water into contact with a basic aqueous solution; filtering the precipitate; drying the filtered precipitate; and firing the dried precipitate, wherein the solution containing the acid includes one or more of nitric acid (HNO) and hydrocarbon acid.