Continuous process for the preparation of
4-amino-2,2,6,6-tetramethylpiperidine
    2.
    发明授权
    Continuous process for the preparation of 4-amino-2,2,6,6-tetramethylpiperidine 失效
    用于制备4-氨基-2,2,6,6-四甲基哌啶的连续方法

    公开(公告)号:US5773622A

    公开(公告)日:1998-06-30

    申请号:US758859

    申请日:1996-12-02

    CPC分类号: C07D211/58

    摘要: A process for the continuous preparation of 4-amino-2,2,6,6-tetramethylpiperidine (TAD), comprising: passing triacetoneamine, ammonia and hydrogen over a catalyst of at least two layers in a reactor, wherein at least one catalyst layer comprises at least one element of the 4th, 5th, or 6th row of the 8th transition group of the Periodic Table or combinations of these metal elements on a suitable support, where the catalyst content with respect to each individual catalytically active element changes independently from the reactor inlet to the reactor outlet.

    摘要翻译: 一种连续制备4-氨基-2,2,6,6-四甲基哌啶(TAD)的方法,包括:在反应器中使三丙酮胺,氨和氢在至少两层的催化剂上通过,其中至少一个催化剂层 包括元素周期表第8,第5或第6行的至少一个元素或这些金属元素在合适载体上的组合,其中催化剂含量相对于每个单独的催化活性元素独立于 反应器入口到反应器出口。