Method for ring-hydrogenation of methylenedianiline
    4.
    发明专利
    Method for ring-hydrogenation of methylenedianiline 有权
    甲基苯胺的环加氢方法

    公开(公告)号:JP2006063079A

    公开(公告)日:2006-03-09

    申请号:JP2005242167

    申请日:2005-08-24

    摘要: PROBLEM TO BE SOLVED: To improve a catalytic process for the ring-hydrogenation of a methylenedianiline feed stock containing crude methylenedianiline.
    SOLUTION: The invention provides a pretreatment process performed by passing a crude methylenedianiline feed stock on a ruthenium catalyst supported on a fixed bed support, cooling without deaeration, hydrogenating the pretreated crude methylenedianiline feed stock on a rhodium catalyst or a mixed Rh/Ru catalyst supported on a monolith support and carrying out ring-hydrogenation by a batch reaction, and provides a catalyst composed of rhodium and ruthenium and supported on a monolith support.
    COPYRIGHT: (C)2006,JPO&NCIPI

    摘要翻译: 要解决的问题:改进含有粗亚甲基二苯胺的亚甲基二苯胺原料环加氢的催化方法。 解决方案:本发明提供了一种通过将粗亚甲基二苯胺原料通过负载在固定床载体上的钌催化剂上进行的预处理方法,不进行脱气冷却,将预处理的粗亚甲基二苯胺原料氢化为铑催化剂或混合的Rh / Ru催化剂负载在整料载体上并通过间歇反应进行环加氢,并提供由铑和钌组成的催化剂并负载在整料载体上。 版权所有(C)2006,JPO&NCIPI