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:
Sep. 05, 2017
Filed:
Nov. 25, 2015
Lg Chem, Ltd., Seoul, KR;
Dae Heung Choi, Daejeon, KR;
Dong Hyun Ko, Daejeon, KR;
Myung Ji Suh, Daejeon, KR;
Kyong Yong Cha, Daejeon, KR;
Ye Seul Hwang, Daejeon, KR;
Jun Han Kang, Daejeon, KR;
Hyun Seok Nam, Daejeon, KR;
Joo Hyuck Lee, Daejeon, KR;
Sang Jin Han, Daejeon, KR;
Jun Kyu Han, Daejeon, KR;
LG CHEM, LTD., Seoul, KR;
Abstract
The present invention relates to a method of preparing butadiene. More particularly, the present invention relates to a method of preparing butadiene by feeding butene and oxygen into a reactor containing a composite metal oxide catalyst and performing oxidative dehydrogenation, wherein a mole ratio of the oxygen to the butene is 1.8 to 2.2. In accordance with the present invention, a method of preparing butadiene to secure long-term operation stability by maintaining the intensity of a catalyst despite oxidative dehydrogenation and not to decrease selectivity due to less side reaction is provided.