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6 条记录 (耗时 0.017 秒)

    METHOD AND SYSTEM FOR PREPARING CAPROLACTAM
    1.
    发明申请
    METHOD AND SYSTEM FOR PREPARING CAPROLACTAM 有权
    制备CAPROLACTAM的方法和系统

    公开(公告)号：US20160237038A1

    公开(公告)日：2016-08-18

    申请号：US14996723

    申请日：2016-01-15

    申请人： China Petrochemical Development Corporation

    发明人： Yung-Shun Kung ,  Jih-Dar Hwang ,  Yao-Ching Tsai

    IPC分类号： C07D223/10 ,  B01J8/02 ,  B01J19/24

    CPC分类号： C07D223/10 ,  B01D3/148 ,  B01D11/0488 ,  B01J8/02 ,  B01J19/245 ,  B01J2208/02 ,  B01J2219/24

    摘要： The present disclosure provides a method for preparing a caprolactam and the method includes steps of subjecting cyclohexanone oxime and sulfuric acid to a Beckmann rearrangement reaction to obtain a rearrangement mixture; neutralizing the rearrangement mixture and extracting the neutralized rearrangement mixture using an organic solvent sequentially; and subjecting the extracted organic solution to a hydrogenation reaction so as to simplify the process to produce a high quality caprolactam.

    摘要翻译： 本公开内容提供了制备己内酰胺的方法，该方法包括使环己酮肟和硫酸进行贝克曼重排反应以获得重排混合物的步骤; 中和重排混合物，并依次用有机溶剂萃取中和的重排混合物; 并对提取的有机溶液进行氢化反应，以简化生产高品质己内酰胺的方法。

    Method and system for preparing caprolactam
    4.
    发明授权
    Method and system for preparing caprolactam 有权
    制备己内酰胺的方法和系统

    公开(公告)号：US09518024B2

    公开(公告)日：2016-12-13

    申请号：US14996723

    申请日：2016-01-15

    申请人： China Petrochemical Development Corporation

    发明人： Yung-Shun Kung ,  Jih-Dar Hwang ,  Yao-Ching Tsai

    IPC分类号： C07D201/04 ,  C07D223/10 ,  B01J19/24 ,  B01J8/02

    CPC分类号： C07D223/10 ,  B01D3/148 ,  B01D11/0488 ,  B01J8/02 ,  B01J19/245 ,  B01J2208/02 ,  B01J2219/24

    摘要： The present disclosure provides a method for preparing a caprolactam and the method includes steps of subjecting cyclohexanone oxime and sulfuric acid to a Beckmann rearrangement reaction to obtain a rearrangement mixture; neutralizing the rearrangement mixture and extracting the neutralized rearrangement mixture using an organic solvent sequentially; and subjecting the extracted organic solution to a hydrogenation reaction so as to simplify the process to produce a high quality caprolactam.

    摘要翻译： 本公开内容提供了制备己内酰胺的方法，该方法包括使环己酮肟和硫酸进行贝克曼重排反应以获得重排混合物的步骤; 中和重排混合物并依次用有机溶剂提取中和的重排混合物; 并对提取的有机溶液进行氢化反应，以简化生产高品质己内酰胺的方法。

    METHOD FOR CONTINUOUSLY PREPARING CARBOXYLIC ACID ESTER
    6.
    发明申请
    METHOD FOR CONTINUOUSLY PREPARING CARBOXYLIC ACID ESTER 有权
    连续制备羧酸酯的方法

    公开(公告)号：US20130303796A1

    公开(公告)日：2013-11-14

    申请号：US13651675

    申请日：2012-10-15

    申请人： CHINA PETROCHEMICAL DEVELOPMENT CORPORATION

    发明人： Jih-Dar Hwang ,  Yung-Shun Kung ,  Yao-Ching Tsai

    IPC分类号： C07C67/03

    CPC分类号： C07C67/08 ,  C07C69/007 ,  C07C69/14 ,  C07C69/24 ,  C07C69/54 ,  C07C69/78 ,  C07C69/44 ,  C07C69/42 ,  C07C69/40 ,  C07C69/50 ,  C07C69/60 ,  C07C69/80

    摘要： A method for continuously preparing a carboxylic acid ester is disclosed. In the method of the present invention, a vertical reactor is filled with a solid catalyst, a carboxylic acid and an alcohol are introduced into a lower part of the vertical reactor, esterification is performed to form an esterized mixture, the esterized mixture is output from an upper part of the vertical reactor, and distillation is performed to isolate the carboxylic acid ester. The method of the present invention is simple, easily controlled and environmental friendly, and has significantly high conversion rate and selectivity.

    摘要翻译： 公开了连续制备羧酸酯的方法。 在本发明的方法中，将垂直反应器填充固体催化剂，羧酸和醇引入垂直反应器的下部，进行酯化以形成酯化混合物，酯化混合物从 垂直反应器的上部，并进行蒸馏以分离羧酸酯。 本发明的方法简单，容易控制，环保，转化率高，选择性好。