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:
Dec. 07, 2021
Filed:
Aug. 17, 2018
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Minsuk Kang, Daejeon, KR;
Sang Beom Lee, Daejeon, KR;
Sung Ho Lee, Daejeon, KR;
Joon Ho Shin, Daejeon, KR;
Sangeun Kim, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 3/00 (2006.01); B01D 3/14 (2006.01); C07C 7/04 (2006.01); C07C 37/74 (2006.01); C07C 45/82 (2006.01);
U.S. Cl.
CPC ...
B01D 3/009 (2013.01); B01D 3/143 (2013.01); C07C 7/04 (2013.01); C07C 37/74 (2013.01); C07C 45/82 (2013.01);
Abstract
A method of decomposing a phenol by-product produced in a phenol preparation process, in which acetophenone separated from a distillation column is mixed with tar separated and collected in a decomposition reactor, thereby significantly decreasing viscosity of tar. The decomposition method according to the present invention allows tar to have sufficient viscosity for flowability even at room temperature, whereby transfer and storage of tar may be more smoothly done without using any heating device for transfer of tar.