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. 21, 2012
Filed:
Oct. 23, 2008
Se-won Baek, Daejeon, KR;
Kyoung-su Ha, Anyang-si, KR;
Sung-kyoo Park, Daejeon, KR;
Jun-seok Ko, Daejeon, KR;
Dong-hyun Woo, Daejeon, KR;
Young-bae Kim, Yeosu-si, KR;
Jung-hoon Chang, Yeosu-si, KR;
Se-Won Baek, Daejeon, KR;
Kyoung-Su Ha, Anyang-si, KR;
Sung-Kyoo Park, Daejeon, KR;
Jun-Seok Ko, Daejeon, KR;
Dong-Hyun Woo, Daejeon, KR;
Young-Bae Kim, Yeosu-si, KR;
Jung-Hoon Chang, Yeosu-si, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
The present invention provides a (meth)acrylic acid collecting method for collecting a (meth)acrylic acid from a mixed gas that includes an organic byproduct, a steam, and a (meth)acrylic acid that are generated in a production reaction of the (meth)acrylic acid, which includes the steps of a) contacting the mixed gas that includes the organic byproduct, the steam, and the (meth)acrylic acid with a (meth)acrylic acid absorption solvent to obtain a gas that includes the organic byproduct and the steam and the (meth)acrylic acid containing solution while the gas and the (meth)acrylic acid containing solution are separated from each other; b) contacting the gas that includes the organic byproduct and the steam that are obtained in the step a with the organic byproduct absorption solvent to obtain the gas that includes the steam and the organic byproduct containing solution while the gas and the organic byproduct containing solution are separated from each other; c) supplying the gas that includes the steam that is obtained in the step b into the production reaction of the (meth)acrylic acid; and d) obtaining the (meth)acrylic acid from the (meth)acrylic acid containing solution that is obtained in the step a while the (meth)acrylic acid and the (meth)acrylic acid containing solution are separated from each other, and a (meth)acrylic acid collecting device.