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. 13, 2012
Filed:
Sep. 23, 2009
Seong Pil Kang, Daejeon, KR;
Seok Kwan Choi, Daejeon, KR;
Kyoung Su Ha, Daejeon, KR;
Jun Seok Ko, Seoul, KR;
Boo Gon Woo, Daejeon, KR;
Young Bae Kim, Jeollanam-do, KR;
Seong Pil Kang, Daejeon, KR;
Seok Kwan Choi, Daejeon, KR;
Kyoung Su Ha, Daejeon, KR;
Jun Seok Ko, Seoul, KR;
Boo Gon Woo, Daejeon, KR;
Young Bae Kim, Jeollanam-do, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
Disclosed is an apparatus for recovering an acrylic acid from a mixture containing acrylic acid, acrylic acid dimer and impurities with high boiling point, including: an acrylic acid recovering device that comprises an acrylic acid distillation unit being present within an acrylic acid dimer pyrolysis tank, and is operated under reduced pressure; a separation column for removing impurities with high boiling point from the mixture which is introduced into the acrylic acid recovering device; and a line for introducing the mixture into the acrylic acid recovering device.