	US 11,717,807 B2
	Method for producing conjugated diene
Kento Kurita, Chiba (JP); Yuchao Wang, Chiba (JP); Satoshi Sato, Chiba (JP); Atsushi Okita, Yokohama (JP); and Kazunori Honda, Yokohama (JP)
Assigned to NATIONAL UNIVERSITY CORP. CHIBA UNIVERSITY; and JGC HOLDINGS CORPORATION
Filed by NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY, Chiba (JP); and JGC Corporation, Yokohama (JP)
Filed on Jun. 21, 2022, as Appl. No. 17/845,858.
Application 17/845,858 is a division of application No. 17/260,704, abandoned, previously published as PCT/JP2019/015183, filed on Apr. 5, 2019.
Claims priority of application No. 2018-147062A (JP), filed on Aug. 3, 2018.
Prior Publication US 2022/0323939 A1, Oct. 13, 2022
Int. Cl. B01J 23/02 (2006.01); B01J 21/06 (2006.01); B01J 37/08 (2006.01); C07C 1/24 (2006.01)

CPC B01J 23/02 (2013.01) [B01J 21/066 (2013.01); B01J 37/082 (2013.01); C07C 1/24 (2013.01); C07C 2521/06 (2013.01); C07C 2523/02 (2013.01)]

16 Claims

1. A method for producing a conjugated diene, the method comprising:

obtaining a fluid containing the conjugated diene that is isoprene by bringing fluid containing 3-methyl-1,3-butanediol into contact with a catalyst for producing the conjugated diene to remove two water molecules from one 3-methyl-1,3-butanediol molecule,

wherein the catalyst comprises zirconium oxide and calcium oxide.