公开(公告)号：US10196339B2

公开(公告)日：2019-02-05

申请号：US15540857

申请日：2015-08-24

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Jae Hyun Park ,  Jong Wook Bae ,  Tae Sun Chang ,  Beom Sik Kim

IPC: B01J27/22 ,  C07C51/12 ,  B01J31/18 ,  B01J31/40 ,  B01J35/10 ,  B01J37/02 ,  B01J37/04 ,  B01J37/08 ,  B01J37/18 ,  B01J21/18 ,  B01J23/46 ,  B01J37/00 ,  B01J31/20

Abstract: This invention relates to a catalyst used in a carbonylation of methanol using carbon monoxide to acetic acid, and more particularly to a heterogeneous catalyst represented by Rh/WxC (where x is an integer of 1 or 2) in which a complex of a rhodium compound and 3-benzoylpyridine is fixed on a support of tungsten carbide.

公开(公告)号：US10124321B2

公开(公告)日：2018-11-13

申请号：US15881170

申请日：2018-01-26

Applicant: Korea Research Institute of Chemical Technology

Inventor： Jong Wook Bae ,  Tae Sun Chang ,  Beom Sik Kim ,  Jae Hyun Park ,  Ji Soo Nam

IPC: C07C51/12 ,  C07C67/36 ,  B01J23/46 ,  B01J37/08 ,  B01J32/00 ,  B01J27/24 ,  B01J35/00 ,  B01J35/10

Abstract: A carbon nitride heterogeneous catalyst containing rhodium, a method for preparing the catalyst, and a method for preparing acetic acid using the catalyst is disclosed. The heterogeneous catalyst is characterized in that the rhodium metal is contained in carbon nitride which is a support insoluble in a liquid solvent, such as water or alcohol. Thus, the catalyst can easily be separated from a resulting product even by a simple process such as filtration. Accordingly, the carbon nitride heterogeneous catalyst exhibits excellent long-term stability and activity by being capable of overcoming the disadvantages of the method using a conventional homogeneous catalyst and minimizing the phenomenon of rhodium leaching, compared to the results of the conventional homogeneous catalytic reactions. The catalyst can thus be effectively used for the preparation of acetic acid by a carbonylation reaction between methanol and carbon monoxide.

公开(公告)号：US10293335B2

公开(公告)日：2019-05-21

申请号：US15540497

申请日：2015-08-24

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY ,  RESEARCH BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY

Inventor： Jae Hyun Park ,  Jong Wook Bae ,  Tae Sun Chang ,  Beom Sik Kim

IPC: C07C51/12 ,  C07C53/08 ,  B01J31/18 ,  B01J31/28 ,  B01J27/24 ,  B01J35/00 ,  B01J35/10 ,  B01J37/02 ,  B01J21/18 ,  B01J23/46 ,  B01J37/08

Abstract: This invention relates to a heterogeneous catalyst represented by Rh/C3N4 configured such that a complex of a rhodium compound and 3-benzoylpyridine is immobilized on a carbon nitride support.