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. 10, 2019
Filed:
Feb. 16, 2016
Applicant:
Jxtg Nippon Oil & Energy Corporation, Tokyo, JP;
Inventors:
Assignee:
JXTG NIPPON OIL & ENERGY CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 5/25 (2006.01); B01J 23/68 (2006.01); B01J 29/12 (2006.01); B01J 29/14 (2006.01); C07B 61/00 (2006.01); C07C 11/08 (2006.01); C07C 11/16 (2006.01); B01J 35/00 (2006.01); B01J 23/31 (2006.01); B01J 23/887 (2006.01); C07C 5/48 (2006.01); C07C 7/04 (2006.01);
U.S. Cl.
CPC ...
C07C 5/25 (2013.01); B01J 23/31 (2013.01); B01J 23/681 (2013.01); B01J 23/686 (2013.01); B01J 23/8872 (2013.01); B01J 29/123 (2013.01); B01J 29/143 (2013.01); B01J 35/0006 (2013.01); C07B 61/00 (2013.01); C07C 5/2556 (2013.01); C07C 5/48 (2013.01); C07C 7/04 (2013.01); C07C 11/08 (2013.01); C07C 11/16 (2013.01); B01J 2523/00 (2013.01); C07C 2521/04 (2013.01); C07C 2521/08 (2013.01); C07C 2523/04 (2013.01); C07C 2523/28 (2013.01); C07C 2523/31 (2013.01); C07C 2523/44 (2013.01); C07C 2523/745 (2013.01); C07C 2523/75 (2013.01); C07C 2523/755 (2013.01); C07C 2523/887 (2013.01); C07C 2529/12 (2013.01); C07C 2529/14 (2013.01);
Abstract
A method for producing diene comprises a step 1 of obtaining a straight chain internal olefin by removing a branched olefin from a raw material including at least the branched olefin and a straight chain olefin; and a step 2 of producing diene from the internal olefin by oxidative dehydrogenation using a first catalyst and a second catalyst, and the first catalyst has a complex oxide including bismuth, molybdenum and oxygen, and the second catalyst includes at least one selected from the group consisting of silica and alumina.