PROCESS FOR PREPARING AROMATIC AMINES
    1.
    发明申请
    PROCESS FOR PREPARING AROMATIC AMINES 有权
    制备芳香胺的方法

    公开(公告)号:US20140128638A1

    公开(公告)日:2014-05-08

    申请号:US13978479

    申请日:2012-01-06

    IPC分类号: C07C209/36

    CPC分类号: C07C209/36 C07C211/46

    摘要: The invention relates to a process for the continuous preparation of aromatic amines by hydrogenation of the corresponding nitroaromatics in the presence of catalysts arranged in reaction spaces, in which an adiabatically operated reaction space RA is connected downstream of an isothermally operated reaction space RI and RA additionally also has a separate feed for the nitroaromatic to be hydrogenated, RI is fed with the nitroaromatic to be hydrogenated from the start to the end of the hydrogenation, and the product mixture emerging from RI is fed into RA from the start to the end of the hydrogenation, wherein RA can additionally be fed via the separate feed with the nitroaromatic to be hydrogenated.

    摘要翻译: 本发明涉及通过在反应空间中排列的催化剂存在下氢化相应的硝基芳族化合物来连续制备芳族胺的方法,其中绝热操作的反应空间RA另外连接等温操作的反应空间RI和RA的下游 还具有用于待氢化的硝基芳族化合物的单独进料,从加氢的开始到结束,将氮源自硝基芳族化合物进行氢化,并将从RI出现的产物混合物从起始到末端进料到RA中 氢化,其中RA可以另外通过单独的进料与待氢化的硝基芳族化合物进料。

    Process for preparing aromatic amines
    2.
    发明授权
    Process for preparing aromatic amines 有权
    制备芳香胺的方法

    公开(公告)号:US09139510B2

    公开(公告)日:2015-09-22

    申请号:US13978479

    申请日:2012-01-06

    IPC分类号: C07C209/00 C07C209/36

    CPC分类号: C07C209/36 C07C211/46

    摘要: The invention relates to a process for the continuous preparation of aromatic amines by hydrogenation of the corresponding nitroaromatics in the presence of catalysts arranged in reaction spaces, in which an adiabatically operated reaction space RA is connected downstream of an isothermally operated reaction space RI and RA additionally also has a separate feed for the nitroaromatic to be hydrogenated, RI is fed with the nitroaromatic to be hydrogenated from the start to the end of the hydrogenation, and the product mixture emerging from RI is fed into RA from the start to the end of the hydrogenation, wherein RA can additionally be fed via the separate feed with the nitroaromatic to be hydrogenated.

    摘要翻译: 本发明涉及通过在反应空间中排列的催化剂存在下氢化相应的硝基芳族化合物来连续制备芳族胺的方法,其中绝热操作的反应空间RA另外连接等温操作的反应空间RI和RA的下游 还具有用于待氢化的硝基芳族化合物的单独进料,从加氢的开始到结束,将氮源自硝基芳族化合物进行氢化,并将从RI出现的产物混合物从起始到末端进料到RA中 氢化,其中RA可以另外通过单独的进料与待氢化的硝基芳族化合物进料。

    PROCESS FOR THE PRODUCTION OF AROMATIC AMINES
    9.
    发明申请
    PROCESS FOR THE PRODUCTION OF AROMATIC AMINES 审中-公开
    生产芳族氨基酸的方法

    公开(公告)号:US20100324336A1

    公开(公告)日:2010-12-23

    申请号:US12814536

    申请日:2010-06-14

    IPC分类号: C07C209/36 C07C209/84

    CPC分类号: C07C209/84 C07C211/46

    摘要: Aromatic amines produced by hydrogenation of the corresponding nitroaromatic compounds are purified in a specified manner. In the purification procedure, the particular amine is initially mixed with an aqueous solution of a base. The organic and aqueous phases are then separated by adding excess water.

    摘要翻译: 通过相应的硝基芳族化合物的氢化生产的芳族胺以指定的方式纯化。 在纯化过程中,特定的胺最初与碱的水溶液混合。 然后通过加入过量的水分离有机相和水相。