公开(公告)号：US20220024868A1

公开(公告)日：2022-01-27

申请号：US17311353

申请日：2019-12-18

Applicant: HANWHA SOLUTIONS CORPORATION

Inventor： Jiyeon KIM ,  Youngjin KIM ,  Jeongseok PARK ,  Jinho PARK ,  Hyun SEO ,  Seonghoon HYEONG ,  Kyuho SONG

IPC: C07D201/04

Abstract: The present invention relates to a laurolactam preparation method and synthesis apparatus, and epoxidation and a rearrangement reaction are performed in the conversion of cyclododecene into cyclododecanone so that the preparation method can synthesize laurolactam having a higher purity with a higher selectivity and in a higher yield than a conventional preparation method.

公开(公告)号：US20220055970A1

公开(公告)日：2022-02-24

申请号：US17413566

申请日：2019-10-04

Applicant: HANWHA SOLUTIONS CORPORATION

Inventor： Youngjin KIM ,  Namjin JANG ,  Kyuho SONG ,  Wook JEONG

IPC: C07C5/05 ,  B01F7/16 ,  B01F15/00 ,  B01F3/04 ,  B01F7/00 ,  B01J27/13 ,  B01J31/02 ,  B01J8/02

Abstract: A synthesis method and a synthesis device of cyclododecene according to the present invention have a high conversion rate of cyclododecatriene which is a reactant and a high selectivity of cyclododecene which is a required product, and even so, have an effect of significantly decreasing a reaction time. In addition, the method and the device have an excellent conversion rate of cyclododecatriene and an excellent selectivity of cyclododecene, while maintaining excellent reactivity without an organic solvent such as ethanol. Therefore, a volume of the reactor relative to an output of cyclododecene may be further decreased. Moreover, the method and the device may minimize costs for facilities and process, are practical, decrease a process time, and are industrially advantageous for mass production as compared with the conventional art.

公开(公告)号：US20240033721A1

公开(公告)日：2024-02-01

申请号：US18256648

申请日：2021-12-10

Applicant: HANWHA SOLUTIONS CORPORATION

Inventor： Youngjin KIM ,  Jinho PARK ,  Namjin JANG

IPC: B01J38/00

CPC classification number: B01J38/00

Abstract: The present invention relates to a method for recovering and reusing a selective homogeneous hydrogenation catalyst. The present invention relates to a method for recovering a selective homogeneous hydrogenation catalyst from a second reaction resolution in which a synthesis of cyclododecene is completed after synthesizing the cyclododecene by selective hydrogenation of a first reaction solution containing cyclododecatriene, triphenylphosphine, formaldehyde, and ruthenium chloride, and the method includes: preparing the selective homogeneous hydrogenation catalyst from the triphenylphosphine, the formaldehyde, and the ruthenium chloride during the selective hydrogenation of the first reaction solution, and synthesizing the cyclododecene; mixing a solvent containing cyclododecanone with the first reaction solution; and recovering the selective homogeneous hydrogenation catalyst through evaporation separation from the second reaction solution in which the synthesis of the cyclododecene is completed.

公开(公告)号：US20240033718A1

公开(公告)日：2024-02-01

申请号：US18257322

申请日：2021-12-14

Applicant: HANWHA SOLUTIONS CORPORATION

Inventor： Youngjin KIM ,  Namjin JANG

IPC: B01J31/24 ,  B01J37/08 ,  C07C13/277 ,  C07C5/05

CPC classification number: B01J31/2404 ,  B01J37/08 ,  C07C13/277 ,  C07C5/05 ,  B01J2231/646 ,  B01J2531/821

Abstract: The present invention relates to a method for preparing a catalyst for selective hydrogenation of cyclododecatriene and a catalyst prepared by the preparation method. The method for preparing a catalyst for selective hydrogenation of cyclododecatriene of the present invention includes: (S1) preparing a ruthenium complex by reacting ruthenium chloride with formaldehyde; and (S2) adding triphenylphosphine to the ruthenium complex and then allowing a reaction to proceed.