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. 28, 2022
Filed:
Feb. 01, 2019
Lg Chem, Ltd., Seoul, KR;
Hyunseok Nam, Daejeon, KR;
Jun Han Kang, Daejeon, KR;
Kyong Yong Cha, Daejeon, KR;
Jaewon Jeong, Daejeon, KR;
Dong Hyun Ko, Daejeon, KR;
Jun Kyu Han, Daejeon, KR;
Sang Jin Han, Daejeon, KR;
Kyung Moo Lee, Daejeon, KR;
Joohyuck Lee, Daejeon, KR;
Daeheung Choi, Daejeon, KR;
Myungji Suh, Daejeon, KR;
Ye Seul Hwang, Daejeon, KR;
Sunhwan Hwang, Daejeon, KR;
Seongmin Kim, Daejeon, KR;
LG CHEM, LTD., Seoul, KR;
Abstract
The present specification provides a method for preparing 1,3-butadiene, the method comprising: (A) obtaining a first product comprising a light component, 1,3-butadiene, and a heavy component from a reactant comprising butene; (B) separating the heavy component from a second product comprising the 1,3-butadiene and the light component by condensing the heavy component after heat exchanging the first product; and (C) separating concentrated heavy component by reboiling the condensed heavy component.