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:
Nov. 26, 2019
Filed:
Nov. 08, 2017
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:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 57/04 (2006.01); B01D 3/00 (2006.01); B01D 3/14 (2006.01); B01D 11/04 (2006.01); C07C 51/44 (2006.01); C07C 51/48 (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); 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 method for continuous recovery of (meth)acrylic acid and an apparatus used for the recovery method. The recovery method according to the present invention enables stable recovery of (meth)acrylic acid and the operation of a continuous process, while securing a high (meth)acrylic acid recovery rate through the acetic acid separation process.