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公开(公告)号：US11571687B2
公开(公告)日：2023-02-07
申请号：US17413582
申请日：2019-08-27
Applicant: HANWHA SOLUTIONS CORPORATION
Inventor： Youngjin Kim , Namjin Jang , Kyuho Song
Abstract: The present invention pertains to a method for recovering a selective homogeneous hydrogenation catalyst and a method for reusing the recovered selective homogeneous hydrogenation catalyst. The method for recovering a selective homogeneous hydrogenation catalyst comprises: a step for synthesizing cyclododecene by selectively hydrogenating a first reaction solution containing cyclododecatriene, triphenylphosphine, formaldehyde, and ruthenium chloride, wherein a selective homogeneous hydrogenation catalyst is prepared during the selective hydrogenation reaction from the triphenylphosphine, formaldehyde, and ruthenium chloride to synthesize the cyclododecene; and a step for distilling and separating unreacted cyclododecatriene and cyclododecadiene, as well as the product cyclododecene, from a second reaction solution in which the cyclododecene synthesis has been completed, and recovering the selective homogeneous hydrogenation catalyst.
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公开(公告)号：US11691934B2
公开(公告)日：2023-07-04
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 , B01F27/81 , B01F23/233 , B01F35/221 , B01F27/112 , B01J8/02 , B01J27/13 , B01J31/02 , B01F101/00
CPC classification number: C07C5/05 , B01F23/2331 , B01F27/112 , B01F27/81 , B01F35/2214 , B01J8/02 , B01J27/13 , B01J31/0207 , B01J31/0267 , B01F23/23314 , B01F2101/2204 , B01J2208/00867 , B01J2231/645 , C07C2531/02 , C07C2531/30
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.
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Patent Agency Ranking
公开(公告)号：US11608304B2
公开(公告)日：2023-03-21
申请号：US16958181
申请日：2018-10-23
Applicant: HANWHA SOLUTIONS CORPORATION
Inventor： Namjin Jang , Kyuho Song , Youngjin Kim , Wook Jeong
Abstract: A method for preparing cyclododecene and a synthesis device therefor, of the present invention, remarkably increase the conversion ratio of cyclododecatriene and selectivity of cyclododecene, can minimize the costs required for equipment and processing, are practical, reduce processing time, and are industrially advantageous to mass production in comparison with a conventional method and device.
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公开(公告)号：US12060326B2
公开(公告)日：2024-08-13
申请号：US18054558
申请日：2022-11-11
Applicant: HANWHA SOLUTIONS CORPORATION
Inventor： Jiyeon Kim , Youngjin Kim , Jeongseok Park , Jinho Park , Hyun Seo , Seonghoon Hyeong , Kyuho Song
IPC: C07D201/04
CPC classification number: 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.
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公开(公告)号：US11535591B2
公开(公告)日：2022-12-27
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.
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公开(公告)号：US20230073615A1
公开(公告)日：2023-03-09
申请号：US18054558
申请日：2022-11-11
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.
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公开(公告)号：US20210070673A1
公开(公告)日：2021-03-11
申请号：US16958181
申请日：2018-10-23
Applicant: HANWHA SOLUTIONS CORPORATION
Inventor： Namjin Jang , Kyuho Song , Youngjin Kim , Wook Jeong
Abstract: A method for preparing cyclododecene and a synthesis device therefor, of the present invention, remarkably increase the conversion ratio of cyclododecatriene and selectivity of cyclododecene, can minimize the costs required for equipment and processing, are practical, reduce processing time, and are industrially advantageous to mass production in comparison with a conventional method and device.
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