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    PROCESS FOR PRODUCTION OF METHYLENE-BRIDGED POLYPHENYL POLYAMINES
    11.
    发明公开
    PROCESS FOR PRODUCTION OF METHYLENE-BRIDGED POLYPHENYL POLYAMINES 有权
    用于生产亚甲基多苯基多胺

    公开(公告)号：EP2379486A1

    公开(公告)日：2011-10-26

    申请号：EP09764227.6

    申请日：2009-11-26

    申请人： Huntsman International LLC

    发明人： MITCHELL, Christopher, John ,  CORMA CANOS, Avelino ,  CARR, Robert, Henry ,  BOTELLA ASUNCION, Pablo

    IPC分类号： C07C209/60 ,  C07C209/78

    CPC分类号： C07C209/60 ,  C07C209/78 ,  C07C211/50

    摘要： A process for providing methylene-bridged polyphenyl polyamines from aniline and formaldehyde according to the invention comprises the subsequent steps of a) condensing aniline and formaldehyde, providing a condensate, the molar ratio of aniline to formaldehyde being chosen in the range of 2 to 3.5; b) reacting, in a first catalytic reaction step, at a reaction temperature within the range of about 30°C to about 100°C, said condensate over a solid catalyst being chosen from the group consisting of clays, silicates, silica-aluminas and ion exchange resins, whereby an intermediate mixture is provided, the intermediate mixture comprising amino benzyl amines; c) converting, in a subsequent catalytic reaction step, at a temperature within the range of about 70°C to about 250°C, the reaction temperature in said subsequent catalytic reaction step is higher than the reaction temperature in said first catalytic reaction step, said intermediate mixture into methylene-bridged polyphenyl polyamines in presence of a subsequent solid catalyst being chosen from the group consisting of zeolites, delaminated zeolites and ordered mesoporous materials, thereby providing said methylene-bridged polyphenyl polyamines.

    Verfahren zur Herstellung von Di- und Polyaminen der Diphenylmethanreihe
    16.
    发明公开
    Verfahren zur Herstellung von Di- und Polyaminen der Diphenylmethanreihe 有权
    Verfahren zur Herstellung von Di-和Polyaminen der Diphenylmethanreihe

    公开(公告)号：EP1524260A1

    公开(公告)日：2005-04-20

    申请号：EP04023291.0

    申请日：2004-09-30

    申请人： Bayer MaterialScience AG

    发明人： Dugal, Markus Dr

    IPC分类号： C07C209/78 ,  C07C263/10 ,  C07C265/14

    CPC分类号： C07C209/36 ,  C07C209/78 ,  C07C263/10 ,  C07C265/14 ,  C07C211/46 ,  C07C211/50

    摘要： Die Erfindung betrifft ein Verfahren zur Herstellung von Di- und Polyaminen der Diphenylmethanreihe, bei dem man

    a) Nitrobenzol und Methanol in Gegenwart eines Katalysators zu Anilin und Formaldehyd umsetzt, und anschließend
    b) das in Schritt a) hergestellte Anilin und Formaldehyd in Gegenwart eines sauren Katalysators zu Di- und Polyaminen der Diphenylmethanreihe umsetzt.

    摘要翻译： 二苯基甲烷系列的二胺和多胺的生产包括（a）将硝基苯和甲醇催化转化为苯胺和甲醛; 然后（b）在酸催化剂存在下将苯胺和甲醛转化为所需的二胺和多胺。 还要求用于上述方法的独立权利要求，其中另外的步骤是使二胺和多胺光气化，得到二苯基甲烷系列的二异氰酸酯和多异氰酸酯。