利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

32 条记录 (耗时 0.01 秒)

    METHOD FOR PRODUCING AMIDE COMPOUND
    2.
    发明公开
    METHOD FOR PRODUCING AMIDE COMPOUND 有权
    生产酰胺化合物的方法

    公开(公告)号：EP2548862A1

    公开(公告)日：2013-01-23

    申请号：EP11756317.1

    申请日：2011-03-15

    申请人： Ube Industries, Ltd.

    发明人： KUGIMOTO, Junichi ,  KAWAI, Joji ,  YAMATO, Kazuo ,  OKADA, Masahide ,  SUGIMOTO, Tsunemi ,  MATSUMOTO, Hiroshi

    IPC分类号： C07D201/04 ,  C07B61/00 ,  C07D225/02

    CPC分类号： C07D201/06 ,  C07D201/04 ,  C07D225/02

    摘要： The present invention relates to a method for producing a high purity, high quality amide compound, particularly, lactam. A first embodiment of the present invention is characterized in that an amount of each of a halide, an aldehyde compound, an alcohol compound and a nitrile compound contained in a solution recycled into an oxime-forming step is controlled to an amount of 0.4 mol% or less based on the ketone as a starting material. A second embodiment of the present invention is characterized in that one or more compounds selected from the group consisting of a ketone, an oxime and an amide compound are purified by hydrogenation and/or crystallization for eliminating impurities containing a double bond. A third embodiment of the present invention is characterized in that a content of impurities having a cyclic bridge structure is controlled by using a cycloalkanone purified by recrystallization.

    摘要翻译： 本发明涉及生产高纯度，高质量酰胺化合物，特别是内酰胺的方法。 本发明的第一实施方案的特征在于，循环到肟形成步骤中的溶液中所含的卤化物，醛化合物，醇化合物和腈化合物各自的量被控制为0.4摩尔％ 或更少，基于酮作为原料。 本发明的第二个实施方案的特征在于通过氢化和/或结晶将选自酮，肟和酰胺化合物中的一种或多种化合物纯化以除去含有双键的杂质。 本发明的第三实施方案的特征在于通过使用通过重结晶纯化的环烷酮来控制具有环状桥结构的杂质的含量。

    Method for production of hydroxylammonium phosphate in the synthesis of caprolactam
    4.
    发明公开
    Method for production of hydroxylammonium phosphate in the synthesis of caprolactam 无效
    Methode zur Herstellung von Hydroxylammoniumphosphat in der Synthese von Kaprolactam

    公开(公告)号：EP1013644A1

    公开(公告)日：2000-06-28

    申请号：EP99125633.0

    申请日：1999-12-22

    申请人： PRAXAIR TECHNOLOGY, INC.

    发明人： Echegaray, Diego Fernandez ,  Velloso, Antonio Augusto M. ,  Wagner, Matthew Lincoln

    IPC分类号： C07D201/06 ,  C07D201/10

    CPC分类号： C07D201/06 ,  C07D201/10

    摘要： A method for production of caprolactam. The method involves:

    (a) reacting air with ammonia gas in an ammonia conversion zone to produce nitric oxide;
    (b) oxidizing at least a portion of the nitric oxide to nitrogen dioxide to produce an NO x -rich process gas stream;
    (c) reactively absorbing the NO x -rich gas stream with phosphoric acid containing solution in an absorption zone to form nitrate ions;
    (d) contacting the nitrate ions with air in a degassing zone to produce a nitrate-rich aqueous process stream;
    (e) reducing the nitrate-rich aqueous stream with hydrogen in the presence of phosphoric acid to produce hydroxylammonium phosphate;
    (f) oximating the hydroxylammonium phosphate with cyclohexanone to produce cyclohexanone oxime; and
    (g) converting the cyclohexanone oxime to caprolactam.
    According to the invention, supplemental oxygen is added downstream of the ammonia conversion zone to increase the quantity and rate of formation of nitrogen dioxide in the NO x -rich process gas stream.

    摘要翻译： 一种生产己内酰胺的方法。 该方法包括：（a）在氨转化区中使空气与氨气反应产生一氧化氮; （b）将至少一部分一氧化氮氧化成二氧化氮以产生富含NO x的工艺气流; （c）在吸收区中用含磷酸溶液反应性吸收富含NO x的气流，形成硝酸根离子; （d）将硝酸根离子与脱气区的空气接触以产生富含硝酸盐的含水工艺物流; （e）在磷酸存在下用氢还原富硝酸盐的水流以产生磷酸羟铵; （f）用环己酮肟化磷酸羟铵，制得环己酮肟; 和（g）将环己酮肟转化为己内酰胺。 根据本发明，在氨转化区的下游添加补充氧以增加富含NOx的工艺气流中二氧化氮的形成量和速率。

    METHOD FOR PRODUCING AMIDE COMPOUND
    9.
    发明授权
    METHOD FOR PRODUCING AMIDE COMPOUND 有权

    公开(公告)号：EP2738161B1

    公开(公告)日：2018-04-11

    申请号：EP14156595.2

    申请日：2011-03-15

    申请人： UBE INDUSTRIES, LTD.

    发明人： Kugimoto, Junichi ,  Kawai, Joji ,  Yamato, Kazuo ,  Okada, Masahide ,  Sugimoto, Tsunemi ,  Matsumoto, Hiroshi

    IPC分类号： C07D201/04 ,  C07D225/02 ,  C07B61/00

    CPC分类号： C07D201/06 ,  C07D201/04 ,  C07D225/02

    摘要： The present invention relates to a method for producing a high purity, high quality amide compound, particularly, lactam. A first embodiment of the present invention is characterized in that an amount of each of a halide, an aldehyde compound, an alcohol compound and a nitrile compound contained in a solution recycled into an oxime-forming step is controlled to an amount of 0.4 mol% or less based on the ketone as a starting material. A second embodiment of the present invention is characterized in that one or more compounds selected from the group consisting of a ketone, an oxime and an amide compound are purified by hydrogenation and/or crystallization for eliminating impurities containing a double bond. A third embodiment of the present invention is characterized in that a content of impurities having a cyclic bridge structure is controlled by using a cycloalkanone purified by recrystallization.