公开(公告)号：EP4424669A1

公开(公告)日：2024-09-04

申请号：EP22886074.8

申请日：2022-10-27

Applicant: China Petroleum & Chemical Corporation ,  Sinopec Research Institute of Petroleum Processing Co., Ltd.

Inventor： FAN, Yingqi ,  WANG, Hao ,  LUO, Yibin ,  XIE, Li ,  ZHANG, Xiaoxin ,  ZHANG, Dejiang ,  LI, Qiang

IPC: C07D201/16 ,  C07D223/10

CPC classification number: Y02P20/52 ,  C07D223/10 ,  C07D201/04 ,  C07D201/16

Abstract: The present invention relates to the field of caprolactam production, and discloses a process for producing high-purity ε-caprolactam. The process comprises the following steps: (1) cyclohexanone oxime is subjected to a gas phase Beckmann rearrangement reaction; (2) the reaction product obtained from step (1) is successively subjected to gas-liquid separation, solvent removal, and light impurity removal to produce a crude caprolactam; (3) the crude caprolactam is subjected to crystallization to produce a crystallization product and a crystallization mother liquor; (4) the crystallization mother liquor is subjected to crystallization to produce a crystal slurry; at least a part of the crystal slurry is returned to step (2) and/or step (3). The purification process of the present invention can obtain high-purity caprolactam through only one crystallization and one mother liquor crystallization without reducing the overall yield of caprolactam. In addition, the process provided by the present invention can effectively solve the problem of product quality fluctuation.

公开(公告)号：EP2241552B1

公开(公告)日：2018-11-14

申请号：EP09708203.6

申请日：2009-02-05

Applicant: National University Corporation Nagoya University ,  Ube Industries, Ltd.

Inventor： ISHIHARA, Kazuaki ,  FUKUDA, Yasuhisa ,  SUGIMOTO, Tsunemi ,  KUGIMOTO, Junichi

IPC: C07D201/04 ,  B01J31/02 ,  C07D201/02 ,  C07D225/02 ,  C07D251/26 ,  C07B61/00

CPC classification number: C07D201/02 ,  B01J31/0244 ,  C07D201/04 ,  C07D225/02 ,  C07D251/26 ,  Y02P20/52

Abstract: Process for producing lactam compounds and Beckmann rearrangement catalysts There is provided a catalyst which is highly active, stable and safe and forms less byproducts for a process for producing a lactam, and a production process. A cycloalkylidene-aminoaxy-1,3,5-triazine compound is provided as a Beckmann rearrangement catalyst and/or a reaction starting material in a reaction process for producing a lactam compound.

公开(公告)号：EP3205395A4

公开(公告)日：2018-04-11

申请号：EP15849085

申请日：2015-09-17

Applicant: TORAY INDUSTRIES

Inventor： UCHIUMI RYOTA ,  TAKAHASHI TORU

IPC: B01J19/12 ,  C07B61/00 ,  C07C249/06 ,  C07C251/44 ,  C07D225/02 ,  F21K9/00 ,  F21V3/00 ,  F21Y107/30 ,  F21Y115/10

CPC classification number: C07D201/04 ,  B01J19/12 ,  B01J19/127 ,  B01J2219/0877 ,  B01J2219/1203 ,  C07B61/00 ,  C07C249/06 ,  C07C251/44 ,  C07D225/02 ,  F21K9/00 ,  F21V3/00 ,  F21Y2107/30 ,  F21Y2115/10

Abstract: Provided are a photoirradiation device equipped with: a first optically transparent container for covering a light-emitting body provided with light-emitting diodes; a liquid phase section provided on the outside thereof and formed from a liquid having a refractive index closer to that of the first optically transparent container than that of a gas forming a gas phase section inside the first optically transparent container; and a second optically transparent container for covering the liquid phase section, a photoreaction method using the photoirradiation device, and a method for producing lactam by using the photoreaction method. The reflection of light between a target liquid and a light-emitting diode light source is suppressed, and a desired photoirradiation can be achieved with a high optical transparency.

公开(公告)号：EP2738161B1

公开(公告)日：2018-04-11

申请号：EP14156595.2

申请日：2011-03-15

Applicant: UBE INDUSTRIES, LTD.

Inventor： Kugimoto, Junichi ,  Kawai, Joji ,  Yamato, Kazuo ,  Okada, Masahide ,  Sugimoto, Tsunemi ,  Matsumoto, Hiroshi

IPC: C07D201/04 ,  C07D225/02 ,  C07B61/00

CPC classification number: C07D201/06 ,  C07D201/04 ,  C07D225/02

Abstract: The present invention relates to a method for producing a high purity, high quality amide compound, particularly, lactam. A first embodiment of the present invention is characterized in that an amount of each of a halide, an aldehyde compound, an alcohol compound and a nitrile compound contained in a solution recycled into an oxime-forming step is controlled to an amount of 0.4 mol% or less based on the ketone as a starting material. A second embodiment of the present invention is characterized in that one or more compounds selected from the group consisting of a ketone, an oxime and an amide compound are purified by hydrogenation and/or crystallization for eliminating impurities containing a double bond. A third embodiment of the present invention is characterized in that a content of impurities having a cyclic bridge structure is controlled by using a cycloalkanone purified by recrystallization.

公开(公告)号：EP3205396A4

公开(公告)日：2018-03-14

申请号：EP15849221

申请日：2015-09-17

Applicant: TORAY INDUSTRIES

Inventor： SUGIMOTO TAKENORI ,  TAKAHASHI TORU ,  SUGAWARA KAZUKI

IPC: B01J19/12 ,  C07B61/00 ,  C07C249/04 ,  C07C249/06 ,  C07C251/44 ,  C07D225/02

CPC classification number: C07D201/04 ,  B01J19/12 ,  B01J19/127 ,  B01J2219/0801 ,  B01J2219/0877 ,  B01J2219/1203 ,  C07B61/00 ,  C07C249/04 ,  C07C249/06 ,  C07C251/44 ,  C07D225/02

Abstract: Provided is a photochemical reaction device wherein two partitions formed from an optically transparent material are arranged apart from each other between a light source and a reaction liquid, and an optically transparent fluid introduction/discharge means for introducing an optically transparent fluid between the partitions and discharging the fluid and a state change detection means for detecting a change in the state of the optically transparent fluid at the discharge side of the optically transparent fluid introduction/discharge means are provided. Also provided are a photochemical reaction method that uses the photochemical reaction device and a lactam production method that uses the photochemical reaction method. The present invention prevents decreases in the performance of the light source even when the optically transparent material in the photochemical reaction device is damaged, and makes it possible to reliably prevent ignition even if the reaction liquid is a flammable liquid.

公开(公告)号：EP3205395A1

公开(公告)日：2017-08-16

申请号：EP15849085.4

申请日：2015-09-17

Applicant: Toray Industries, Inc.

Inventor： UCHIUMI Ryota ,  TAKAHASHI Toru

IPC: B01J19/12 ,  C07C249/06 ,  C07C251/44 ,  C07D225/02 ,  C07B61/00

CPC classification number: C07D201/04 ,  B01J19/12 ,  B01J19/127 ,  B01J2219/0877 ,  B01J2219/1203 ,  C07B61/00 ,  C07C249/06 ,  C07C251/44 ,  C07D225/02 ,  F21K9/00 ,  F21V3/00 ,  F21Y2107/30 ,  F21Y2115/10

Abstract: Provided are a photoirradiation device equipped with: a first optically transparent container for covering a light-emitting body provided with light-emitting diodes; a liquid phase section provided on the outside thereof and formed from a liquid having a refractive index closer to that of the first optically transparent container than that of a gas forming a gas phase section inside the first optically transparent container; and a second optically transparent container for covering the liquid phase section, a photoreaction method using the photoirradiation device, and a method for producing lactam by using the photoreaction method. The reflection of light between a target liquid and a light-emitting diode light source is suppressed, and a desired photoirradiation can be achieved with a high optical transparency.

Abstract translation: 本发明提供一种光照射装置，其具备：第一光学透明容器，其覆盖设置有发光二极管的发光体; 液相部分，所述液相部分设置在所述第一光学透明容器的外部并由折射率接近于所述第一光学透明容器的折射率的液体形成，而不是形成在所述第一光学透明容器内的气相部分的气体; 以及用于覆盖液相部分的第二光学透明容器，使用该光照射装置的光反应方法以及使用该光反应方法生产内酰胺的方法。 目标液体和发光二极管光源之间的光反射被抑制，并且可以以高光学透明度实现期望的光照射。

公开(公告)号：EP3101011A1

公开(公告)日：2016-12-07

申请号：EP16176645.6

申请日：2009-05-14

Applicant: ARKEMA FRANCE

Inventor： AUBERT, Thierry

IPC: C07D227/087 ,  C07D201/04 ,  C07C249/06

CPC classification number: C07D201/04 ,  C07C249/06 ,  C07C2601/20 ,  C07D227/087 ,  C07C251/44

Abstract: La présente invention se rapporte à un procédé de préparation de lactames dans lequel on effectue une photonitrosation d'un cycloalcane à l'aide de chlorure de nitrosyle (NOCI). Selon l'invention, cette photonitrosation est effectuée au moyen de LEDs émettant une lumière monochromatique.
Le procédé selon l'invention peut en outre comprendre une étape de transposition de Beckmann/déchloration du chlorhydrate d'oxime généré lors de cette photonitrosation, de préférence réalisée dans un microréacteur en verre.

Abstract translation: 本发明涉及一种用于制备内酰胺，gemäß到其上cycloallcane的photonitrosation是使用亚硝酰氯（NOCI）。 。根据本发明，所述photonitrosation进行借助于LED的发射单色光。 因此，该方法雅丁到本发明可以包括一个步骤，包括贝克曼换位/说phonitrosation期间产生的肟盐酸盐的脱氯，优选在玻璃微型反应器中开展。

公开(公告)号：EP2548862B1

公开(公告)日：2016-06-08

申请号：EP11756317.1

申请日：2011-03-15

Applicant: Ube Industries, Ltd.

Inventor： KUGIMOTO, Junichi ,  KAWAI, Joji ,  YAMATO, Kazuo ,  OKADA, Masahide ,  SUGIMOTO, Tsunemi ,  MATSUMOTO, Hiroshi

IPC: C07D201/04 ,  C07D225/02 ,  C07B61/00

CPC classification number: C07D201/06 ,  C07D201/04 ,  C07D225/02

公开(公告)号：EP2771317A4

公开(公告)日：2015-10-07

申请号：EP12842979

申请日：2012-10-25

Applicant: HONEYWELL INT INC ,  UNIV SOUTHAMPTON

Inventor： LEVY ALAN B ,  RAJA ROBERT ,  POTTER MATTHEW E

IPC: C07D201/04 ,  B01J21/02 ,  B01J21/06 ,  B01J29/85

CPC classification number: B01J29/85 ,  B01J35/002 ,  C01B37/08 ,  C01B39/54 ,  C07D201/04 ,  C07D223/10 ,  C07D225/02 ,  Y02P20/52

公开(公告)号：EP2123635B1

公开(公告)日：2013-06-05

申请号：EP08711071.4

申请日：2008-02-08

Applicant: National University Corporation Nagoya University ,  Ube Industries, Ltd.

Inventor： ISHIHARA, Kazuaki ,  KUGIMOTO, Junichi ,  KAWAI, Joji

IPC: C07D201/04 ,  C07D225/02 ,  C07B61/00

CPC classification number: C07D201/04 ,  C07D225/02 ,  Y02P20/582