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:
Jun. 15, 2021
Filed:
Aug. 28, 2019
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Yoon Jae Min, Daejeon, KR;
Se Won Baek, Daejeon, KR;
Jong Hun Song, Daejeon, KR;
Jae Yul Kim, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 57/04 (2006.01); B01D 3/14 (2006.01); B01D 11/04 (2006.01); C07C 51/44 (2006.01); C07C 51/48 (2006.01); B01D 53/14 (2006.01); B01D 3/00 (2006.01); C07C 51/50 (2006.01);
U.S. Cl.
CPC ...
C07C 57/04 (2013.01); B01D 3/00 (2013.01); B01D 3/143 (2013.01); B01D 11/04 (2013.01); B01D 11/0488 (2013.01); B01D 53/1425 (2013.01); B01D 53/1456 (2013.01); C07C 51/44 (2013.01); C07C 51/48 (2013.01); C07C 51/50 (2013.01); B01D 2257/70 (2013.01); B01D 2257/80 (2013.01);
Abstract
The present invention relates to a continuous recovery method of (meth)acrylic acid and an apparatus for use in the recovery method. A continuous recovery method of (meth)acrylic acid according to the present invention can ensure a high recovery rate of (meth)acrylic acid through an acetic acid separation process in addition to enabling the stable recovery of (meth)acrylic acid and the operation of continuous processes.