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    Preparation of cyclic amines
    4.
    发明授权
    Preparation of cyclic amines 失效
    环胺的制备

    公开(公告)号：US5663438A

    公开(公告)日：1997-09-02

    申请号：US516147

    申请日：1995-08-17

    申请人： Ulrich Kohler ,  Frank-Friedrich Pape ,  Matthias Irgang ,  Joachim Wulff-Doring ,  Michael Hesse ,  Peter Polanek

    发明人： Ulrich Kohler ,  Frank-Friedrich Pape ,  Matthias Irgang ,  Joachim Wulff-Doring ,  Michael Hesse ,  Peter Polanek

    IPC分类号： B01J23/40 ,  B01J23/42 ,  B01J23/58 ,  B01J23/63 ,  C07B61/00 ,  C07C209/16 ,  C07C209/68 ,  C07C211/45

    CPC分类号： C07C209/68 ,  C07C209/16

    摘要： A process for the preparation of a phenyl amine which may be substituted by alkyl or cycloalkyl in which the corresponding cyolohexylamine is reduced at temperatures of 150.degree. to 300.degree. C. and pressures of 0.01 to 50 bar in the presence of a heterogeneous dehydrogenation catalyst consisting essentially of palladium or a palladium/platinum mixture supported on carrier consisting of the oxides of rare earth metals and and metals of Group IVb of the Periodic Table of Elements, with the proviso that the palladium/platinum mixture may also be supported on an alumina carrier. The cyclohexylamine reactant can be advantageously prepared by reacting the corresponding phenol with ammonia and hydrogen at 100.degree. to 250.degree. C. in the presence of the same heterogeneous catalyst as a preliminary step to provide a two stage process using the same catalyst in both stages.

    摘要翻译： 制备苯基胺的方法，其可以被烷基或环烷基取代，其中相应的环己胺在150-300℃的温度和0.01至50巴的压力下在存在非均相脱氢催化剂的条件下还原， 基本上由负载在由稀土金属的氧化物构成的载体上的钯或钯/铂混合物和元素周期表IVb族金属组成，条件是钯/铂混合物也可以负载在氧化铝载体上 。 环己胺反应物可以有利地通过在相同的非均相催化剂的存在下在100-250℃下使相应的苯酚与氨和氢反应来制备，以提供在两个阶段中使用相同催化剂的两阶段方法。

    Process for preparing an N,N-dialky-ethanolamine having high color stability
    10.
    发明授权
    Process for preparing an N,N-dialky-ethanolamine having high color stability 有权
    制备具有高颜色稳定性的N，N-二乙醇胺的方法

    公开(公告)号：US08791302B2

    公开(公告)日：2014-07-29

    申请号：US13328230

    申请日：2011-12-16

    申请人： Frank-Friedrich Pape ,  Johann-Peter Melder ,  Alfred Krause ,  Roland Bou Chedid ,  Martin Rudloff

    发明人： Frank-Friedrich Pape ,  Johann-Peter Melder ,  Alfred Krause ,  Roland Bou Chedid ,  Martin Rudloff

    IPC分类号： C07C213/00

    CPC分类号： C07C213/04 ,  C07C215/08

    摘要： A process for preparing an N,N-dialkylethanolamine of the formula I having high color stability where R1 and R2 are each independently a C1- to C8-alkyl group, by reacting ethylene oxide (EO) with a corresponding dialkylamine (R1R2NH) in the presence of water, wherein the reaction is effected continuously in a reactor, the reaction temperature is in the range from 90 to 180° C. and the residence time (RT) in the reactor is in the range from 1 to 7 min, the reactor output is treated thermally at a temperature in the range from 80 to 160° C. over a period in the range from 20 to 1000 min, and then the N,N-dialkylethanolamine is removed by distillation.

    摘要翻译： 制备具有高颜色稳定性的式I的N，N-二烷基乙醇胺的方法，其中R 1和R 2各自独立地为C 1〜C 8烷基，通过使环氧乙烷（EO）与相应的二烷基胺（R 1 R 2 NH） 存在水，其中反应在反应器中连续进行，反应温度为90-180℃，反应器中的停留时间（RT）为1-7分钟，反应器 在80〜160℃的温度范围内，在20〜1000分钟的时间内对产物进行热处理，然后通过蒸馏除去N，N-二烷基乙醇胺。