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14 条记录 (耗时 0.022 秒)

    Process for the continuous production of mono- and polyisocyanates
    4.
    发明授权
    Process for the continuous production of mono- and polyisocyanates 失效
    连续生产单异氰酸酯和多异氰酸酯的方法

    公开(公告)号：US4851570A

    公开(公告)日：1989-07-25

    申请号：US263154

    申请日：1988-10-27

    申请人： Gottfried Zaby ,  Helmut Judat ,  Siegbert Humburger ,  Stefaan de Vos ,  Rolf W. Eckermann

    发明人： Gottfried Zaby ,  Helmut Judat ,  Siegbert Humburger ,  Stefaan de Vos ,  Rolf W. Eckermann

    IPC分类号： C07C263/10 ,  C07C67/00 ,  C07C71/00 ,  C07C241/00 ,  C07C263/20 ,  C07C265/00 ,  C07C265/12 ,  C07C265/14

    CPC分类号： C07C263/10

    摘要： This invention relates to a process for the continuous production of an organic monoisocyanate or polyisocyanate in a single stage reaction. A reaction mixture is formed by continuously mixing, at a temperature elevated above room temperature but not exceeding about 150.degree. C., a solution in a substantially inert organic solvent of a monoamine or polyamine corresponding to the monoisocyanate or polyisocyanate and a solution in a substantially inert organic solvent of phosgene. The reaction mixture is continuously passed upwards from below through a reaction column comprising at least 10 separate chambers separated by perforated plates, wherein each perforation of said perforated plates has a diameter of less than about 20 mm.

    摘要翻译： 本发明涉及在单级反应中连续生产有机单异氰酸酯或多异氰酸酯的方法。 通过在高于室温但不超过约150℃的温度下连续混合在对应于单异氰酸酯或多异氰酸酯的单胺或多胺的基本惰性有机溶剂中的溶液和基本上 光气惰性有机溶剂。 反应混合物从下方连续地通过包括由多孔板分隔开的至少10个分开的室的反应塔，其中所述多孔板的每个穿孔具有小于约20mm的直径。

    Device for mixing and reacting multiphase gaseous and liquid mixtures and use of this device
    5.
    发明授权
    Device for mixing and reacting multiphase gaseous and liquid mixtures and use of this device 失效
    用于混合和反应多相气态和液体混合物的装置以及该装置的使用

    公开(公告)号：US06726354B1

    公开(公告)日：2004-04-27

    申请号：US09913061

    申请日：2001-08-08

    申请人： Werner Breuer ,  Frieder Heydenreich ,  Günter Jeromin ,  Helmut Judat

    发明人： Werner Breuer ,  Frieder Heydenreich ,  Günter Jeromin ,  Helmut Judat

    IPC分类号： B01F304

    CPC分类号： B01F5/0485 ,  B01F5/0475 ,  Y10S261/75

    摘要： A device for mixing and reacting multiphase gaseous and liquid mixtures is disclosed. The device comprise in sequence a first inflow cylindrical space, at least one cylindrical chamber tapering towards said cylindrical space, a second cylindrical space positioned perpendicularly to said first cylindrical space, and an outflow space. Also disclosed is a method of using the device, in particular in the interfacial process for preparing diphenyl carbonates or polycarbonates.

    摘要翻译： 公开了用于混合和反应多相气态和液体混合物的装置。 该装置依次包括第一流入圆柱形空间，朝向所述圆柱形空间渐缩的至少一个圆柱形室，垂直于所述第一圆柱形空间定位的第二圆柱形空间和流出空间。 还公开了使用该装置的方法，特别是用于制备碳酸二苯酯或聚碳酸酯的界面方法。

    Process for the preparation of halogenoanthraquinones
    8.
    发明授权
    Process for the preparation of halogenoanthraquinones 失效
    卤代蒽醌的制备方法

    公开(公告)号：US4006171A

    公开(公告)日：1977-02-01

    申请号：US625725

    申请日：1975-10-24

    申请人： Norbert Majer ,  Hans-Samuel Bien ,  Helmut Judat ,  Armin Lieberam

    发明人： Norbert Majer ,  Hans-Samuel Bien ,  Helmut Judat ,  Armin Lieberam

    IPC分类号： C07C50/24 ,  C07C45/00 ,  C07C46/00 ,  C07C67/00 ,  C07C49/68

    CPC分类号： C07C46/00

    摘要： A process for the preparation of a chloroanthraquinone or a bromoanthraquinone comprising treating a molten mixture of at least one nitroanthraquinone and diluent with halogen at a temperature of about 180 to 300.degree. C, the diluent being present in at least about 10% by weight of the mixture and comprising at least one chloroanthraquinone or bromoanthraquinone. The diluent may correspond to the halogenoanthraquinone obtained from the nitroanthraquinone by replacement of the nitro group. A portion of the product can be recycled as diluent for further reaction.

    摘要翻译： 一种制备氯蒽醌或溴蒽醌的方法，包括在约180至300℃的温度下用卤素处理至少一种硝基蒽醌和稀释剂的熔融混合物，稀释剂以至少约10重量％ 并且包含至少一种氯蒽醌或溴蒽醌。 稀释剂可以相应于通过硝基取代由硝基蒽醌得到的卤代蒽醌。 产品的一部分可以作为稀释剂再循环进一步反应。