公开(公告)号：US3278527A

公开(公告)日：1966-10-11

申请号：US32484863

申请日：1963-11-19

Applicant: HONSHU KAGAKU KOGYO KABUSHIKI

Inventor： SHOZO YURA ,  KAZUO HORIGUCHI

IPC: C07D201/04

CPC classification number: C07D201/04

公开(公告)号：US2723266A

公开(公告)日：1955-11-08

申请号：US35464853

申请日：1953-05-12

Applicant: BRITISH CELANESE

Inventor： JAMES LINCOLN ,  MARIANNE COHN IRENE ,  HENRY GROOMBRIDGE WALTER

IPC: C07D201/04

CPC classification number: C07D201/04

公开(公告)号：US2462009A

公开(公告)日：1949-02-15

申请号：US54555044

申请日：1944-07-18

Applicant: SHELL DEV

Inventor： MORRIS RUPERT C ,  SNIDER ALVA V

IPC: C07D201/04 ,  C08G69/08

CPC classification number: C08G69/08 ,  C07D201/04

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.

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.

公开(公告)号：US10457636B2

公开(公告)日：2019-10-29

申请号：US16318791

申请日：2017-09-07

Applicant: Sumitomo Chemical Company, Limited

Inventor： Kazuaki Yoshimura ,  Nobufumi Watanabe ,  Kohei Seki ,  Masashi Teramori ,  Keisuke Tanaka

IPC: C07D201/04 ,  C01B39/36 ,  B01J29/40

Abstract: A method for producing ε-caprolactam involves a step of Beckmann-rearranging cyclohexanone oxime in a gas phase in the presence of a zeolite catalyst containing silicon and at least one element selected from alkaline earth metal elements and magnesium. The concentration of the above-described element in the zeolite catalyst is 3 ppm by mass or more and 10000 ppm by mass or less.

公开(公告)号：US20190241513A1

公开(公告)日：2019-08-08

申请号：US16318791

申请日：2017-09-07

Applicant: Sumitomo Chemical Company, Limited

Inventor： Kazuaki YOSHIMURA ,  Nobufumi WATANABE ,  Kohei SEKI ,  Masashi TERAMORI ,  Keisuke TANAKA

IPC: C07D201/04 ,  B01J29/40 ,  C01B39/36

CPC classification number: C07D201/04 ,  B01J29/40 ,  C01B39/36 ,  C07D211/76 ,  Y02P20/52

Abstract: A method for producing ε-caprolactam involves a step of Beckmann-rearranging cyclohexanone oxime in a gas phase in the presence of a zeolite catalyst containing silicon and at least one element selected from alkaline earth metal elements and magnesium. The concentration of the above-described element in the zeolite catalyst is 3 ppm by mass or more and 10000 ppm by mass or less.

公开(公告)号：US09908785B2

公开(公告)日：2018-03-06

申请号：US14899579

申请日：2014-06-20

Applicant: CAP III B.V.

Inventor： Johan Thomas Tinge ,  Geert Ekkelenkamp ,  Robert Geertman

IPC: B01D9/00 ,  C01C1/24 ,  C01C1/248 ,  C07D201/16 ,  C07D201/04 ,  C07C249/08

CPC classification number: C01C1/24 ,  B01D9/0022 ,  B01D9/0031 ,  B01D9/004 ,  B01D9/0063 ,  B01D2009/0086 ,  C01C1/248 ,  C07C249/08 ,  C07C2601/14 ,  C07D201/04 ,  C07D201/16 ,  C07C251/44

Abstract: The present invention provides a continuous process for producing ammonium sulfate crystals, wherein said process comprises: (a) feeding to a first group of crystallization sections, which crystallization sections are heat integrated in series, a first aqueous ammonium sulfate solution that contains one or more impurities; (b) feeding to a second group of crystallization sections, which crystallization sections are heat integrated in series, a second aqueous ammonium sulfate solution that contains one or more impurities; (c) crystallizing ammonium sulfate crystals in each crystallization section respectively from each of said solutions of ammonium sulfate that contain one or more impurities; (d) purging a fraction of the ammonium sulfate solution that contains one or more impurities from each of said crystallization sections; and (e) discharging ammonium sulfate crystals from each crystallization section, characterized in that: (i) both the first group of crystallization sections and the second group of crystallization sections are together heat integrated in one series of crystallization sections; wherein the first group of crystallization sections operates at higher temperature than the second group of crystallization sections; and (ii) the composition of the first aqueous ammonium sulfate solution that contains one or more impurities is different to the composition of the second aqueous ammonium sulfate solution that contains one or more impurities. Further provided is apparatus suitable for producing ammonium sulfate crystals.

公开(公告)号：US09624176B2

公开(公告)日：2017-04-18

申请号：US15192869

申请日：2016-06-24

Applicant: NANJING TECH UNIVERSITY (CN)

Inventor： Kai Guo ,  Xin Li ,  Zheng Fang ,  Kai Zhang ,  Qi Yu ,  Pingkai Ouyang

IPC: C07D201/04 ,  C07D201/06 ,  C07D223/10

CPC classification number: C07D223/10 ,  Y02P20/52

Abstract: A method for preparing caprolactam by using a microreactor under Lewis acid catalysis, wherein a hydroxyl group in a cyclohexanone oxime is activated to obtain a cyclohexanone oxime sulfonates intermediate, then rearranged under Lewis acid catalysis to prepare the caprolactam. The method of this invention has a simple process and a high operation safety and selectivity, the reaction condition is mild, an efficient reaction can take place even at room temperature, the reaction time is short, the conversion of the cyclohexanone oxime can reach 100% within a short time, the selectivity of the caprolactam can reach 99%, the energy consumption is greatly reduced in the premise of maintaining a high yield, and the production cost is reduced, being an efficient and green and environmentally friendly method of for synthesizing the caprolactam.

公开(公告)号：US09533933B2

公开(公告)日：2017-01-03

申请号：US14815014

申请日：2015-07-31

Applicant: Kevin Micoine ,  Ralf Meier ,  Juergen Herwig ,  Martin Roos ,  Harald Haeger ,  Luca Cameretti ,  Jens Doering

Inventor： Kevin Micoine ,  Ralf Meier ,  Juergen Herwig ,  Martin Roos ,  Harald Haeger ,  Luca Cameretti ,  Jens Doering

IPC: C07C45/51 ,  C07C45/58 ,  C07D201/04 ,  B01J23/44 ,  C07C45/82 ,  C07C249/04 ,  C07D225/02 ,  C07D301/12 ,  C08G69/16 ,  C07C29/52 ,  C07C45/00 ,  C07C45/28 ,  C07C49/413

CPC classification number: C07C45/512 ,  B01J23/44 ,  C07C29/52 ,  C07C45/002 ,  C07C45/28 ,  C07C45/58 ,  C07C45/82 ,  C07C49/413 ,  C07C249/04 ,  C07D201/04 ,  C07D225/02 ,  C07D301/12 ,  C08G69/16 ,  C07C35/205

Abstract: Cyclododecanone (CDON) is prepared by epoxidizing cyclododecene (CDEN) to epoxycyclododecane (CDAN epoxide), and rearranging the CDAN epoxide to CDON to obtain a mixture comprising said CDON and CDEN, wherein CDEN is separated from the CDON-containing mixture and sent to the epoxidation to CDAN epoxide in step a.

Abstract translation: 通过环环十二碳烯（CDEN）环氧环十二烷（CDAN环氧化物）制备环十二烷酮（CDON），并将CDAN环氧化物重排为CDON，得到包含所述CDON和CDEN的混合物，其中CDEN与含CDON的混合物分离并送至 在步骤a中对CDAN环氧化物进行环氧化。