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    PROCESS FOR THE PRODUCTION OF METHYLENE-BRIDGED POLYPHENYL POLYAMINES
    1.
    发明申请
    PROCESS FOR THE PRODUCTION OF METHYLENE-BRIDGED POLYPHENYL POLYAMINES 有权
    制备亚甲基桥联聚苯胺的方法

    公开(公告)号：US20110282099A1

    公开(公告)日：2011-11-17

    申请号：US13133410

    申请日：2009-11-26

    申请人： Christopher John Mitchell ,  Avelino Corma Canos ,  Robert Henry Carr ,  Pablo Botella Asuncion

    发明人： Christopher John Mitchell ,  Avelino Corma Canos ,  Robert Henry Carr ,  Pablo Botella Asuncion

    IPC分类号： C07C211/51

    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 ofa) 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.

    摘要翻译： 根据本发明的由苯胺和甲醛提供亚甲基桥接的聚苯胺的方法包括以下步骤：a）使苯胺和甲醛缩合，提供缩合物，苯胺与甲醛的摩尔比选择在2至3.5的范围内; b）在第一催化反应步骤中，在约30℃至约100℃范围内的反应温度下使所述缩合物在固体催化剂上选自粘土，硅酸盐，二氧化硅 - 氧化铝和离子交换树脂，由此提供中间体混合物，所述中间体混合物包含氨基苄基胺; c）在随后的催化反应步骤中，在约70℃至约250℃的温度范围内转化，所述后续催化反应步骤中的反应温度高于所述第一催化反应中的反应温度 在随后的固体催化剂存在下将所述中间体混合物形成亚甲基桥连的聚苯胺，所述固体催化剂选自沸石，分层沸石和有序介孔材料，从而提供所述亚甲基桥连的聚苯基多胺。