Process for uniform and reproducible shell impregnation of fixed bed
catalyst supports in the form of loose particles
    5.
    发明授权
    Process for uniform and reproducible shell impregnation of fixed bed catalyst supports in the form of loose particles 失效
    固定床催化剂载体以松散颗粒的形式均匀且可再现的壳浸渍方法

    公开(公告)号:US5498590A

    公开(公告)日:1996-03-12

    申请号:US157233

    申请日:1993-11-24

    IPC分类号: B01J37/02

    CPC分类号: B01J37/0223 B01J37/0232

    摘要: A process for uniform and reproducible impregnation of fixed bed catalyst supports in the form of loose particles with a desired shell volume, by applying atomized impregnating solutions of precursors of the catalytically active components onto the heap of catalyst supports circulated in a tank. By suitable selection of the spraying parameters, in particular the droplet size range, the quantity of solvent and the quantity of impregnating solution sprayed per rotation of the tank, the catalyst supports may be provided with shells with an excellent degree of uniformity.

    摘要翻译: 通过将催化活性组分的前体的雾化浸渍溶液施加到在罐中循环的催化剂载体的堆上,使具有所需壳体积的松散颗粒形式的固定床催化剂载体均匀且可重复地浸渍的方法。 通过适当选择喷雾参数,特别是液滴尺寸范围,溶剂的量和每个罐的每转喷涂的浸渍溶液的量,催化剂载体可以具有优异的均匀度的壳。

    Process for the production of 3-aminoethyl-3,5,5-trimethylcyclohexyl
amine
    8.
    发明授权
    Process for the production of 3-aminoethyl-3,5,5-trimethylcyclohexyl amine 失效
    3-氨基乙基-3,5,5-三甲基环己胺的制备方法

    公开(公告)号:US5679860A

    公开(公告)日:1997-10-21

    申请号:US739044

    申请日:1996-10-28

    摘要: A process for producing 3-aminomethyl-3,5,5-trimethylcyclohexyl amine (isophorone diamine) from isophorone nitrile. Isophorone nitrile is iminated in a first stage and then the reaction mixture is subjected to aminating hydrogenation in a second stage in the presence of a fixed bed hydrogenation catalyst based on Raney cobalt. The fixed bed hydrogenation catalyst is produced in a special manner by mixing a powdery Co--containing Raney alloy with powdery cobalt, sintering the powdery mixture to shaped moldings and then activating by leaching with alkali hydroxide solution. The yield and/or space-time yield in isophorone diamine production can be increased.

    摘要翻译: 由异佛尔酮腈生产3-氨基甲基-3,5,5-三甲基环己胺(异佛尔酮二胺)的方法。 在第一阶段中将异佛尔酮腈进行酰化,然后在基于阮内钴的固定床氢化催化剂的存在下,将反应混合物在第二阶段进行氨化氢化。 固定床加氢催化剂以特殊的方式通过将粉末状含钴阮内合金与粉末状钴混合,将粉末状混合物烧结成型成形体,然后通过用碱金属氢氧化物溶液浸出而活化。 可以增加异佛尔酮二胺生产中的产率和/或时空产率。