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:
Aug. 10, 2021
Filed:
Jan. 11, 2018
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Hyun Nam, Daejeon, KR;
Young Ho Lee, Daejeon, KR;
Ki Yong Yoon, Daejeon, KR;
Jun Hyuk Lim, Daejeon, KR;
Kyung Moo Lee, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 37/86 (2006.01); C07C 37/78 (2006.01);
U.S. Cl.
CPC ...
C07C 37/86 (2013.01); C07C 37/78 (2013.01);
Abstract
The present invention relates to a method for purifying phenol, which comprises: contacting a phenol stream comprising hydroxyacetone, 2-methylbenzofuran, 3-methylbenzofuran and phenol with an acyl chloride in the presence of an organic sulfonic acid to convert one or more selected from the group consisting of hydroxyacetone, 2-methylbenzofuran and 3-methylbenzofuran into a high boiling point compound having a boiling point higher than that of the phenol; and recovering the high boiling point compound from the phenol stream.