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    PRODUCTION METHOD OF ε-CAPROLACTAM
    122.
    发明专利
    PRODUCTION METHOD OF ε-CAPROLACTAM 审中-公开
    生物反应器的生产方法

    公开(公告)号：JP2013049649A

    公开(公告)日：2013-03-14

    申请号：JP2011188528

    申请日：2011-08-31

    Applicant: Sumitomo Chemical Co Ltd ,  住友化学株式会社

    Inventor： NAGAMI HIDETO

    IPC: C07D201/06

    Abstract: PROBLEM TO BE SOLVED: To provide a production method of ε-caprolactam, for producing high-quality ε-caprolactam, which has fewer impurities, with a good yield.SOLUTION: The production method includes: an ε-caprolactam purification step A of obtaining purified ε-caprolactam from crude ε-caprolactam by applying a drop-crystallization method; a first-stage ε-caprolactam recovery step B of applying a vaporization crystallization method to a crystallization mother liquid obtained in the ε-caprolactam purification step A, to obtain a first recovered ε-caprolactam and a first recovered mother liquid; and a second-stage ε-caprolactam recovery step C of at least partially removing a solvent included in the first recovered mother liquid, applying a melting crystallization method to the concentrated first recovered mother liquid to obtain a second recovered purified ε-caprolactam. The first recovered ε-caprolactam is recovered as a raw material for the ε-caprolactam purification step A, and the second recovered purified ε-caprolactam is recovered as a raw material for any one of or both of the ε-caprolactam purification step A and the first-stage ε-caprolactam recovery step B.

    Abstract translation: 待解决的问题：为了提供ε-己内酰胺的制造方法，为了生产具有较少杂质的高品质ε-己内酰胺，具有良好的收率。 解决方案：制备方法包括：通过滴加结晶法从粗ε-己内酰胺获得纯化的ε-己内酰胺的ε-己内酰胺纯化步骤A; 对在ε-己内酰胺精制工序A中得到的结晶母液进行蒸发结晶化的第一阶段ε-己内酰胺回收工序B，得到第一回收的ε-己内酰胺和第一回收母液; 以及第二阶段ε-己内酰胺回收步骤C，其至少部分除去第一回收母液中所含的溶剂，对浓缩的第一回收母液进行熔融结晶法，得到第二回收的纯化ε-己内酰胺。 作为ε-己内酰胺纯化工序A的原料回收第一回收的ε-己内酰胺，回收第二回收的纯化ε-己内酰胺作为ε-己内酰胺纯化工序A中的任一种或两者的原料， 第一阶段ε-己内酰胺回收步骤B.版权所有（C）2013，JPO＆INPIT

    METHOD FOR REGENERATING ε-CAPROLACTAM-PRODUCING CATALYST AND METHOD FOR PRODUCING ε-CAPROLACTAM
    123.
    发明专利
    METHOD FOR REGENERATING ε-CAPROLACTAM-PRODUCING CATALYST AND METHOD FOR PRODUCING ε-CAPROLACTAM 有权
    用于再生生产ε-CAPROLACTAM催化剂的方法和用于生产ε-CAPROLACTAM的方法

    公开(公告)号：JP2003320260A

    公开(公告)日：2003-11-11

    申请号：JP2003048946

    申请日：2003-02-26

    Applicant: Sumitomo Chem Co Ltd ,  住友化学工業株式会社

    Inventor： MATSUSHITA TSUYOSHI ,  SUGITA KEISUKE ,  ICHIHASHI HIROSHI

    IPC: C07D223/10 ,  B01J29/035 ,  B01J29/90 ,  B01J38/50 ,  B01J38/66 ,  C07B61/00 ,  C07D201/06

    CPC classification number: Y02P20/52 ,  Y02P20/584

    Abstract: PROBLEM TO BE SOLVED: To provide a regenerated catalyst with high activity prepared from a used catalyst in subjecting a cyclohexanone oxime to a Beckmann rearrangement reaction in a gas phase. SOLUTION: A solid catalyst used in subjecting the cyclohexanone oxime to the Beckmann rearrangement reaction in the gas phase is brought into contact with an aqueous solution containing at least one kind selected from among quaternary ammonium compounds and lower alkylamines and ammonia. Thus, the ε-caprolactam is produced at a high yield for a long time by regenerating and reusing the ε-caprolactam-producing catalyst using the described method. COPYRIGHT: (C)2004,JPO

    Abstract translation: 要解决的问题：提供一种在气相中使环己酮肟进行贝克曼重排反应的由使用的催化剂制备的具有高活性的再生催化剂。 解决方案：将用于使环己酮肟在气相中进行贝克曼重排反应的固体催化剂与含有季铵化合物和低级烷基胺和氨中的至少一种的水溶液接触。 因此，通过使用所述方法再生和再利用产生ε-己内酰胺的催化剂，ε-己内酰胺以高产率长时间生产。 版权所有（C）2004，JPO

    OXIDE CATALYST AND PRODUCTION OF EPSILON-CAPROLACTAM WITH THE SAME
    124.
    发明专利
    OXIDE CATALYST AND PRODUCTION OF EPSILON-CAPROLACTAM WITH THE SAME 失效

    公开(公告)号：JP2000239251A

    公开(公告)日：2000-09-05

    申请号：JP36612499

    申请日：1999-12-24

    Applicant: MITSUBISHI CHEM CORP

    Inventor： FUJITA NAOKO ,  MARU NAWARUKISHUU ,  SETOYAMA TORU

    IPC: C07D201/06

    Abstract: PROBLEM TO BE SOLVED: To provide a method for producing ε-caprolactam from cyclohexanone in one step with a high selectivity. SOLUTION: This method for producing ε-caprolactam comprises reacting cyclohexanone with a nitrogen source and oxygen. Therein, the reaction is carried out in the presence of an oxide catalyst containing at least one element M selected from the groups 3-12 in the periodic table. The reaction is desirably performed in the presence of an oxide catalyst containing silicon and at least one element M selected from the groups 3-12 in the periodic table.

    PURIFICATION OF CYCLOHEXANONE OXIME HYDROCHLORIDE
    125.
    发明专利
    PURIFICATION OF CYCLOHEXANONE OXIME HYDROCHLORIDE 失效

    公开(公告)号：JPH1036332A

    公开(公告)日：1998-02-10

    申请号：JP19223896

    申请日：1996-07-22

    Applicant: TORAY INDUSTRIES

    Inventor： MORITA SHOJI ,  YAMAMOTO HARUYOSHI

    IPC: C07D201/06 ,  C07C251/46

    Abstract: PROBLEM TO BE SOLVED: To remove water contained in a cyclohexanone oxime hydrochloride oily substance to be supplied to a Beckmann's rearrangement reaction. SOLUTION: Cyclohexanone oxime hydrochloride salt is mixed with an organic solvent (e.g. a halogenated hydrocarbon, chloroform, or 1,2- dichloroethane) poor in compatibility with water and large in compatibility with the cyclohexanone oxime hydrochloride and subsequently subjected to an azeotropic distillation treatment to separate and remove water contained in the salt.

    PRODUCTION OF EPSILON-CAPROLACTAM
    126.
    发明专利
    PRODUCTION OF EPSILON-CAPROLACTAM 失效

    公开(公告)号：JPH08193062A

    公开(公告)日：1996-07-30

    申请号：JP340395

    申请日：1995-01-12

    Applicant: MITSUBISHI CHEM CORP

    Inventor： TERAMOTO KOJI ,  KANDA TAMOTSU ,  TEZUKA MAKOTO

    IPC: C07D201/04 ,  C07D201/06

    Abstract: PURPOSE: To provide an industrially useful process for producing ε-caprolactam having a quality comparable to that of the conventional products inexpensively. CONSTITUTION: In this process for production of ε-caprolactam where cyclohexanol as a hydration product of cyclohexene is dehydrogenated to cyclohexanone, which is converted into cyclohexanone oxime with hydroxylamine, further, the oxime product is subjected to the Beckmann rearrangement to be converted into ε-caprolactam, the content of methylcyclopentanol is kept lower than 200ppm in the cyclohexanol fed to the dehydrogenation process.

    128.
    发明专利
    失效

    公开(公告)号：JPS468856B1

    公开(公告)日：1971-03-05

    申请号：JP4937166

    申请日：1966-07-29

    IPC: C07D201/06

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