公开(公告)号：US20210114001A1

公开(公告)日：2021-04-22

申请号：US16963161

申请日：2019-02-26

Applicant: LG Chem, LTD.

Inventor： Joohyuck LEE ,  Dong Hyun KO ,  Kyong Yong CHA ,  Myungji SUH

IPC: B01J23/80 ,  B01J31/06 ,  B01J31/28 ,  B01J21/04 ,  B01J37/02 ,  C07C5/48

Abstract: The method for preparing a ferrite-based coating catalyst including mixing a support, a ferrite-based catalyst, a cellulose-based additive, and water, in which a content of the cellulose-based additive is 0.5 wt % or less based on a total weight of the ferrite-based catalyst.

公开(公告)号：US20210060537A1

公开(公告)日：2021-03-04

申请号：US16963639

申请日：2019-11-19

Applicant: LG CHEM, LTD.

Inventor： Ye Seul HWANG ,  Dong Hyun KO ,  Joohyuck LEE ,  Myungji SUH

IPC: B01J23/889 ,  B01J23/80 ,  B01J23/86 ,  B01J21/12 ,  B01J35/08 ,  B01J37/02 ,  C07C5/48

Abstract: Provided is a catalyst for an oxidative dehydrogenation reaction that comprises: a porous support; a core portion supported on the porous support and containing a first zinc ferrite-based catalyst; and a shell portion supported on the core portion and containing a second zinc ferrite-based catalyst, in which the first zinc ferrite-based catalyst and the second zinc ferrite-based catalyst are different from each other.

公开(公告)号：US20210163378A1

公开(公告)日：2021-06-03

申请号：US16771141

申请日：2019-02-01

Applicant: LG CHEM, LTD.

Inventor： Hyunseok NAM ,  Jun Han KANG ,  Kyong Yong CHA ,  Jaewon JEONG ,  Dong Hyun KO ,  Jun Kyu HAN ,  Sang Jin HAN ,  Kyung Moo LEE ,  Joohyuck LEE ,  Daeheung CHOI ,  Myungji SUH ,  Ye Seul HWANG ,  Sunhwan HWANG ,  Seongmin KIM

IPC: C07C5/48 ,  C07C7/04 ,  B01D5/00

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.

公开(公告)号：US20210039075A1

公开(公告)日：2021-02-11

申请号：US16964571

申请日：2019-02-26

Applicant: LG Chem, LTD.

Inventor： Joohyuck LEE ,  Dong Hyun KO ,  Kyong Yong CHA ,  Myungji SUH

IPC: B01J23/745 ,  C07C11/167 ,  C07C5/48 ,  B01J37/02

Abstract: The method for preparing a ferrite-based coating catalyst including mixing a support, a ferrite-based catalyst, and water in a coating machine which is a rotating body, in which a weight ratio of the water based on a total weight of the support is 0.15 to 0.3.