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    • 4. 发明授权
    • Method for producing ε-caprolactam
    • 生产ε-己内酰胺的方法
    • US07189845B2
    • 2007-03-13
    • US11088874
    • 2005-03-25
    • Keisuke SugitaMasaru KitamuraMasahiro Hoshino
    • Keisuke SugitaMasaru KitamuraMasahiro Hoshino
    • C07D201/04
    • C07D201/04B01J29/90B01J38/12Y02P20/52Y02P20/584
    • 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.
    • 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。
    • 5. 发明申请
    • Method for producing E-caprolactam
    • 生产ε-己内酰胺的方法
    • US20050245740A1
    • 2005-11-03
    • US11088874
    • 2005-03-25
    • Keisuke SugitaMasaru KitamuraMasahiro Hoshino
    • Keisuke SugitaMasaru KitamuraMasahiro Hoshino
    • C07D223/10B01J29/90B01J38/12C07B61/00C07D201/04B01J20/34
    • C07D201/04B01J29/90B01J38/12Y02P20/52Y02P20/584
    • 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.
    • 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。