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15 条记录 (耗时 0.011 秒)

    VERFAHREN ZUR HERSTELLUNG VON MELAMIN IM EINPHASIGEN ROHRREAKTOR
    5.
    发明授权
    VERFAHREN ZUR HERSTELLUNG VON MELAMIN IM EINPHASIGEN ROHRREAKTOR 有权
    用于单相管反应器中生产三聚氰胺

    公开(公告)号：EP1641769B1

    公开(公告)日：2006-09-20

    申请号：EP04735561.5

    申请日：2004-06-01

    申请人： AMI Agrolinz Melamine International GmbH

    发明人： SCHRÖDER, Frank ,  FELLNER, Johannes ,  BUCKA, Hartmut

    IPC分类号： C07D251/60

    CPC分类号： C07D251/60 ,  Y02P20/544

    摘要： The invention relates to a method and a device for producing melamine by means of the thermal conversion of urea. The invention is characterised in that: a) urea is reacted to form melamine at least partially under reaction conditions wherein an educt, an intermediate and/or an end product are present in a supercritical state; and b) the mixture consisting of at least one educt, an intermediate and/or an end product essentially forms a homogeneous phase, especially all educts, intermediates, and/or end products being in a complete solution. The single-phase reaction results in an especially efficient reaction.

    VERFAHREN ZUR KONTINUIERLICHEN SYNTHESE EINES MELAMINFLÜSSIGHARZES
    6.
    发明公开
    VERFAHREN ZUR KONTINUIERLICHEN SYNTHESE EINES MELAMINFLÜSSIGHARZES 有权
    方法三聚氰胺树脂液体的连续合成

    公开(公告)号：EP1615963A1

    公开(公告)日：2006-01-18

    申请号：EP04723583.3

    申请日：2004-03-26

    申请人： AMI Agrolinz Melamine International GmbH

    发明人： RÄTZSCH, Manfred ,  BUCKA, Hartmut ,  SCHRÖDER, Frank ,  PFEIFFER, Steffen ,  TAPPEINER, Günther

    IPC分类号： C08G12/32 ,  C08G73/06

    CPC分类号： C08G12/32 ,  C08G73/0644

    摘要： The invention relates to a method for synthesising a liquid melamine resin, characterised in that: a) melamine, at least one aldehyde and at least one alcohol are fed to at least one first reactor (10) operated continuously, in particular at least one agitated tank operated continuously and are reacted together, b) the reaction product that is obtained is fed to a solid-liquid phase separation device (11), c) a solid-rich phase (A) that has been produced in the solid-liquid phase separation (11) is fed back to at least one first reactor (10) and d) a phase (B) devoid of solids that has been produced in the solid-liquid phase separation (11) is subjected to additional processing steps. The invention thus provides an efficient continuous direct synthesis method.

    VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON MELAMIN IM EINPHASIGEN ROHRREAKTOR
    9.
    发明公开
    VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON MELAMIN IM EINPHASIGEN ROHRREAKTOR 有权

    公开(公告)号：EP1641769A1

    公开(公告)日：2006-04-05

    申请号：EP04735561.5

    申请日：2004-06-01

    申请人： AMI Agrolinz Melamine International GmbH

    发明人： SCHRÖDER, Frank ,  FELLNER, Johannes ,  BUCKA, Hartmut

    IPC分类号： C07D251/60

    CPC分类号： C07D251/60 ,  Y02P20/544

    摘要： The invention relates to a method and a device for producing melamine by means of the thermal conversion of urea. The invention is characterised in that: a) urea is reacted to form melamine at least partially under reaction conditions wherein an educt, an intermediate and/or an end product are present in a supercritical state; and b) the mixture consisting of at least one educt, an intermediate and/or an end product essentially forms a homogeneous phase, especially all educts, intermediates, and/or end products being in a complete solution. The single-phase reaction results in an especially efficient reaction.

    摘要翻译： 本发明涉及通过尿素热转化生产三聚氰胺的方法和装置。 本发明的特征在于：a）脲在反应条件下至少部分地反应形成三聚氰胺，其中离析物，中间体和/或最终产物以超临界状态存在; 和b）由至少一种离析物，中间体和/或最终产物组成的混合物基本上形成均相，特别是所有离析物，中间体和/或终产物处于完全溶液中。 单相反应导致特别有效的反应。