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    Method for producing E-caprolactam
    181.
    发明申请
    Method for producing E-caprolactam 失效
    生产ε-己内酰胺的方法

    公开(公告)号：US20050245740A1

    公开(公告)日：2005-11-03

    申请号：US11088874

    申请日：2005-03-25

    Applicant: Keisuke Sugita ,  Masaru Kitamura ,  Masahiro Hoshino

    Inventor： Keisuke Sugita ,  Masaru Kitamura ,  Masahiro Hoshino

    IPC: C07D223/10 ,  B01J29/90 ,  B01J38/12 ,  C07B61/00 ,  C07D201/04 ,  B01J20/34

    CPC classification number: C07D201/04 ,  B01J29/90 ,  B01J38/12 ,  Y02P20/52 ,  Y02P20/584

    Abstract: The invention provides a method for producing ε-caprolactam comprising the steps of: a reaction process which subjects cyclohexanone oxime to a Beckmann rearrangement reaction in the presence of a solid catalyst; and a catalyst regeneration process which regenerates the solid catalyst used in the reaction process by heat treatment under an atmosphere comprising an oxygen-containing gas, wherein the solid catalyst heat-treated in the catalyst regeneration process is used in the reaction process, the carbon contents in the solid catalyst in the reaction process and the catalyst regeneration process are maintained in a range of 0.5 to 2% by weight, and the nitrogen contents in the solid catalyst in the reaction process and the catalyst regeneration process are maintained in a range of 0.01 to 0.2% by weight. According to the invention, ε-caprolactam can be produced in a high production yield for a long period of time by enhancing persistence of the catalytic activity for producing ε-caprolactam.

    Abstract translation: 本发明提供了一种生产ε-己内酰胺的方法，包括以下步骤：在固体催化剂存在下将环己酮肟与贝克曼重排反应相对应的反应过程; 以及催化剂再生方法，其通过在包含含氧气体的气氛下进行热处理来再生反应过程中使用的固体催化剂，其中在反应过程中使用在催化剂再生过程中热处理的固体催化剂，碳含量 在反应过程中的固体催化剂和催化剂再生过程保持在0.5〜2重量％的范围内，并且在反应过程和催化剂再生过程中固体催化剂中的氮含量保持在0.01 至0.2重量％。 根据本发明，ε-己内酰胺可以通过增加用于生产ε-己内酰胺的催化活性的持久性，以高生产率长时间生产。

    Stabilization method of cycloalkanone oxime
    183.
    发明申请
    Stabilization method of cycloalkanone oxime 失效
    环烷酮肟稳定方法

    公开(公告)号：US20050119479A1

    公开(公告)日：2005-06-02

    申请号：US10995253

    申请日：2004-11-24

    Applicant: Masami Fukao ,  Noriaki Tanaka

    Inventor： Masami Fukao ,  Noriaki Tanaka

    IPC: C07C249/14 ,  C07C251/44 ,  C07D201/04 ,  C07C251/42

    CPC classification number: C07C249/14 ,  C07C2601/14 ,  C07C251/44

    Abstract: Cycloalkanone oxime is stabilized by a method comprising bringing the cycloalkanone oxime into contact with at least one compound selected from the group consisting of oxoacids, oxoacid salts, oxoacid esters, oxoacid amides and oxides of boron or phosphorus. In accordance with the invention, the thermal stability of cycloalkanone oxime can be improved.

    Abstract translation: 通过包括使环烷酮肟与至少一种选自含氧酸，含氧酸盐，含氧酸酯，含氧酰胺和硼或磷的氧化物的化合物接触的方法来稳定环烷酮酮肟。 根据本发明，可以提高环烷酮肟的热稳定性。

    Method for producing epsilon-caprolactam
    184.
    发明申请
    Method for producing epsilon-caprolactam 失效
    生产ε-己内酰胺的方法

    公开(公告)号：US20050010020A1

    公开(公告)日：2005-01-13

    申请号：US10883822

    申请日：2004-07-06

    Applicant: Masashi Yokota ,  Yoshinori Kobayashi ,  Masaru Kitamura

    Inventor： Masashi Yokota ,  Yoshinori Kobayashi ,  Masaru Kitamura

    IPC: C07D201/10 ,  C07D201/04 ,  C08G69/08 ,  C07D223/10 ,  C08G73/10

    CPC classification number: C07D201/04 ,  Y02P20/52

    Abstract: ε-Caprolactam is produced by the method comprising the step of introducing a gas comprising cyclohexanone oxime into a layer of solid catalyst particles through a plurality of holes of a gas diffusion plate so that the solid catalyst particles are brought into contact with the gas, while fluidizing the catalyst layer, wherein the holes have an average diameter of about 3 mm or smaller. In accordance with the production method, ε-caprolactam can be produced from a raw material gas comprising cyclohexanone oxime with a high conversion of cyclohexanone oxime and a high selectivity to ε-caprolactam.

    Abstract translation: ε-己内酰胺通过包括以下步骤的方法制备：包括环己酮肟的气体通过气体扩散板的多个孔引入固体催化剂颗粒层中，使得固体催化剂颗粒与气体接触，同时 使催化剂层流化，其中孔的平均直径为约3mm或更小。 根据制造方法，ε-己内酰胺可以由包含环己酮肟的高转化率和对ε-己内酰胺的高选择性的环己酮肟的原料气体制备。

    Process for preparation of cyclohexanone oxime
    186.
    发明申请
    Process for preparation of cyclohexanone oxime 失效
    环己酮肟的制备方法

    公开(公告)号：US20040176592A1

    公开(公告)日：2004-09-09

    申请号：US10482835

    申请日：2004-01-06

    Inventor： Ken Suzuki ,  Hajime Nagahara

    IPC: C07D201/04

    CPC classification number: C07C249/04 ,  C07C251/44 ,  C07C2601/14

    Abstract: A method for producing cyclohexanone oxime, which comprises the steps of (1) subjecting to an amination reaction a starting material selected from the group consisting of cyclohexanol, cyclohexanone and a mixture thereof, thereby obtaining cyclohexylamine, and (2) subjecting the obtained cyclohexylamine to a partial oxidation reaction, thereby obtaining cyclohexanone oxime, wherein a by-product (null) formed in the step (1) and/or a by-product (null) formed in the step (2) are/is recycled to a reaction system of the amination reaction in the step (1).

    Abstract translation: 一种制备环己酮肟的方法，其包括以下步骤：（1）对选自环己醇，环己酮及其混合物的起始材料进行胺化反应，从而得到环己胺，（2）将得到的环己胺 从而得到环己酮肟，其中步骤（1）中形成的副产物（α）和/或步骤（2）中形成的副产物（β））被再循环至反应体系 的步骤（1）中的胺化反应。

    Process for producing lactam
    187.
    发明申请
    Process for producing lactam 失效
    生产内酰胺的方法

    公开(公告)号：US20040097727A1

    公开(公告)日：2004-05-20

    申请号：US10471750

    申请日：2003-09-25

    Inventor： Kiyotaka Hatakeda ,  Osamu Sato ,  Yutaka Ikushima ,  Kazuo Torii

    IPC: C07D201/04

    CPC classification number: C07D201/04

    Abstract: It is an object of the present invention to provide an efficient method of continuously producing a lactam in high-temperature high-pressure water, and the present invention relates to a method of producing a lactam characterized by efficiently synthesizing the lactam while suppressing oxime hydrolysis by introducing an oxime as a reaction substrate and an acid into a reaction zone through which high-temperature high-pressure water is flowing, or introducing an oxime into flowing high-temperature high-pressure water containing an acid, thus raising the temperature of the reaction substrate to put the reaction substrate into a prescribed high-temperature high-pressure state within a short time and subjecting the reaction substrate to reaction; through the method, the lactam can be efficiently and continuously synthesized at a high rate from the oxime using an acid catalyst in water at a high temperature of at least 250null C. and a high pressure of at least 15 MPa.

    Abstract translation: 本发明的目的是提供一种在高温高压水中连续生产内酰胺的有效方法，本发明涉及一种制备内酰胺的方法，其特征在于在抑制肟水解的同时有效地合成内酰胺 将肟作为反应基质和酸引入高温高压水流过的反应区，或将肟引入流入含有酸的高温高压水中，从而提高反应温度 将反应基材在短时间内放入规定的高温高压状态，使反应基板反应; 通过该方法，可以使用酸催化剂在高温下在高温至少250℃，高压至少15MPa的水中，以高速从肟高效连续地合成内酰胺。

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