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    A method of preparing omega -lactams, in particular caprolactam
    1.
    发明公开
    A method of preparing omega -lactams, in particular caprolactam 失效
    制备OMEGA-LACTAMS，特别是CAPROLACTAM的方法

    公开(公告)号：EP0197408A3

    公开(公告)日：1990-03-14

    申请号：EP86103982.4

    申请日：1986-03-22

    申请人： CHIMICA DEL FRIULI S.p.A.

    发明人： Senni, Paolo ,  Zuliani, Leandro ,  Ferruzzi, Sergio

    IPC分类号： C07D201/10

    CPC分类号： C07D201/08

    摘要： A method of preparing ω -lactams, in particular caprolactam, comprising: a step of premixing cycloaliphatic acids having the formula
    where n = 3 - 13, with a dehydrating agent; the first step of reaction with a nitrosating agent; the second step of reaction with the addition of a very small amount of water corresponding to a molar ratio U = H 2 O/SO 3 within the 0.1 to 0.9 range; and the step of reclaiming the unreacted cycloaliphatic acid. The method affords improved output from the lactamization reaction and reduced byproducts.

    摘要翻译： 一种制备ω-内酰胺，特别是己内酰胺的方法，包括：用脱水剂将具有式“IMAGE”其中n = 3-13的脂环族酸预混合的步骤; 与亚硝化剂反应的第一步; 第二步反应加入相当于0.1至0.9范围内的摩尔比U = H 2 O / SO 3的非常少量的水; 以及回收未反应的脂环族酸的步骤。 该方法提高了内酰胺化反应的产率和减少的副产物。

    IMPROVED SCRATCH AND MAR RESISTANT LOW VOC COATING COMPOSITION
    3.
    发明公开
    IMPROVED SCRATCH AND MAR RESISTANT LOW VOC COATING COMPOSITION 审中-公开
    改进了与较少的挥发性有机化合物防划伤损坏和固体涂料组合物

    公开(公告)号：EP1606250A1

    公开(公告)日：2005-12-21

    申请号：EP04757642.6

    申请日：2004-03-18

    申请人： E.I. DUPONT DE NEMOURS AND COMPANY

    发明人： LOPER, Scott, W. ,  UHLIANUK, Peter, William

    IPC分类号： C07D201/10 ,  C09D143/04

    CPC分类号： C09D143/00 ,  Y10T428/31663

    摘要： A curable coating composition, and process of application thereof, particularly useful as a clearcoating applied over a pigmented basecoat that has significantly decreased VOC and improved scratch, etch, and mar resistance, is provided in accordance with the present invention, which is contains a silane functional oligomeric or polymeric material comprising carbamate groups and a crosslinking component comprising groups that are reactive with the carbamate groups.

    Method for production of hydroxylammonium phosphate in the synthesis of caprolactam
    5.
    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。

    A method of preparing omega -lactams, in particular caprolactam
    6.
    发明公开
    A method of preparing omega -lactams, in particular caprolactam 失效
    维他命Zur Herstellung von omega-Lactamen，insbesondere己内酰胺。

    公开(公告)号：EP0197408A2

    公开(公告)日：1986-10-15

    申请号：EP86103982.4

    申请日：1986-03-22

    申请人： CHIMICA DEL FRIULI S.p.A.

    发明人： Senni, Paolo ,  Zuliani, Leandro ,  Ferruzzi, Sergio

    IPC分类号： C07D201/10

    CPC分类号： C07D201/08

    摘要： A method of preparing ω -lactams, in particular caprolactam, comprising: a step of premixing cycloaliphatic acids having the formula
    where n = 3 - 13, with a dehydrating agent; the first step of reaction with a nitrosating agent; the second step of reaction with the addition of a very small amount of water corresponding to a molar ratio U = H 2 O/SO 3 within the 0.1 to 0.9 range; and the step of reclaiming the unreacted cycloaliphatic acid. The method affords improved output from the lactamization reaction and reduced byproducts.

    摘要翻译： 一种制备ω-内酰胺，特别是己内酰胺的方法，包括：用脱水剂将具有式“IMAGE”其中n = 3-13的脂环族酸预混合的步骤; 与亚硝化剂反应的第一步; 第二步反应加入相当于0.1至0.9范围内的摩尔比U = H 2 O / SO 3的非常少量的水; 以及回收未反应的脂环族酸的步骤。 该方法提高了内酰胺化反应的产率和减少的副产物。

    Method for production of hydroxylamine sulfate in the conventional process for the synthesis of caprolactam
    8.
    发明公开
    Method for production of hydroxylamine sulfate in the conventional process for the synthesis of caprolactam 有权
    在常规方法中生产硫酸胲的用于合成己内酰胺的方法

    公开(公告)号：EP1013643A1

    公开(公告)日：2000-06-28

    申请号：EP99125632.2

    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： An improvement in the conventional process for the production of caprolactam. The process involves:

    (a) reacting air with ammonia gas in an ammonia conversion zone to produce nitric oxide;
    (b) oxidizing a portion of the nitric oxide to nitrogen dioxide to produce an NO x -rich process gas stream;
    (c) reacting the NO x -rich stream with ammonium carbonate in a nitriting zone to produce ammonium nitrite;
    (d) reducing the ammonium nitrite to hydroxylamine diammonium sulfate;
    (e) hydrolyzing the hydroxylamine diammonium sulfate to hydroxylamine sulfate;
    (f) oximating the hydroxylamine sulfate with cyclohexanone to produce cyclohexanone oxime; and
    (g) converting the cyclohexanone oxime to caprolactam.
    The process is improved by adding supplemental oxygen 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： 在传统工艺的改进生产己内酰胺的。 该过程包括：（a）在氨转化区反应用氨气空气以产生一氧化氮; （B）氧化所述一氧化氮的一部分以二氧化氮以生产富含NOx的反应气流; （C）反应与碳酸铵在亚硝化区中，以产生亚硝酸铵的富含NOx的物流; （D）降低了亚硝酸盐对羟胺二硫酸铵; （E）水解所述羟胺硫酸二铵到硫酸羟胺; （F）的肟化的硫酸胲用环己酮，以产生环己酮肟; 及（g）将所述环己酮肟为己内酰胺。 该过程通过加入氨转化区，以增加富含NOx反应气流中形成的二氧化氮的量和速率的下游补充氧气改善。