公开(公告)号：US11912653B2

公开(公告)日：2024-02-27

申请号：US16958430

申请日：2018-12-26

Applicant: HANWHA SOLUTIONS CORPORATION

Inventor： Jeong Kwon Kim ,  Wan Jae Myeong ,  Sun Woo Yook ,  Bong Sik Jeon

IPC: B01J21/12 ,  B01J21/18 ,  B01J23/62 ,  B01J37/02 ,  B01J37/08 ,  B01J37/18 ,  C07C29/158 ,  C07C31/27

CPC classification number: C07C31/276 ,  B01J21/12 ,  B01J21/18 ,  B01J23/626 ,  B01J37/0205 ,  B01J37/0213 ,  B01J37/0219 ,  B01J37/0228 ,  B01J37/0242 ,  B01J37/084 ,  B01J37/18 ,  C07C29/158

Abstract: Provided are a noble metal-transition metal complex catalyst supported on a carbon-coated silica-alumina support and a preparation method therefor, the catalyst being capable of obtaining a fast reaction rate and catalyst stability, as compared to a conventional catalyst, when cyclohexane dimethanol (CHDM) production is carried out by a cyclohexane dicarboxylic acid (CHDA) hydrogenation reaction in an aqueous solution by using a carbon-coated supported catalyst.

公开(公告)号：US11517880B2

公开(公告)日：2022-12-06

申请号：US16958493

申请日：2018-12-27

Applicant: HANWHA SOLUTIONS CORPORATION

Inventor： Sun Woo Yook ,  Jeong Kwon Kim ,  Wan Jae Myeong ,  Bong Sik Jeon

IPC: B01J21/18 ,  B01J23/62 ,  B01J35/10 ,  B01J37/02 ,  C07C29/149

Abstract: Provided are a carbon-based noble metal-transition metal composite catalyst enabling high selective conversion of a carboxylic acid functional group into an alcohol functional group by pre-treating a carbon carrier including a predetermined ratio or more of mesopores, and a production method therefor.

公开(公告)号：US11969711B2

公开(公告)日：2024-04-30

申请号：US17417377

申请日：2019-12-10

Applicant: HANWHA SOLUTIONS CORPORATION

Inventor： Jeong Kwon Kim ,  Sun Woo Yook ,  Bong Sik Jeon ,  Wan Jae Myeong

IPC: B01J23/62 ,  B01J27/20 ,  B01J35/02 ,  B01J35/10 ,  B01J37/03 ,  B01J37/04 ,  B01J37/06 ,  B01J37/08 ,  B01J37/18 ,  C07C29/149

CPC classification number: B01J23/626 ,  B01J27/20 ,  B01J35/023 ,  B01J35/1009 ,  B01J35/1014 ,  B01J35/1019 ,  B01J35/1023 ,  B01J35/1028 ,  B01J35/1038 ,  B01J35/1042 ,  B01J35/1047 ,  B01J35/1057 ,  B01J35/1061 ,  B01J37/035 ,  B01J37/04 ,  B01J37/06 ,  B01J37/08 ,  B01J37/18 ,  C07C29/149

Abstract: The present invention relates to a carbon-based precious metal-transition metal composite catalyst and a preparation method therefor, and more particularly, to a catalyst synthesis method in which, when preparing a high-content precious metal-transition metal composite catalyst, a catalyst having uniform particles and composition can be prepared, and cyclohexane dimethanol (CHDM) is efficiently produced by the hydrogenation reaction of cyclohexane dicarboxylic acid (CHDA) in an aqueous solution. Provided is a method for preparing a carbon-based precious metal-transition metal composite catalyst, wherein, in the carbon-based precious metal-transition metal composite catalyst, the precious metal is included in an amount of 10-20 parts by weight, and the transition metal is included in an amount of 10-20 parts by weight based on 100 parts by weight of the composite catalyst, and thus a total amount of the precious metal-transition metal is 20-40 parts by weight based on 100 parts by weight of the composite catalyst.