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    • 43. 发明授权
    • Continuous method for producing aromatic amines
    • 连续生产芳香胺的方法
    • US06242649B1
    • 2001-06-05
    • US09529143
    • 2000-04-07
    • Heiko BeckhausReinhard Langer
    • Heiko BeckhausReinhard Langer
    • C07C20900
    • C07C209/36C07C211/50
    • A continuous process for the preparation of aromatic di- and/or polyamines by catalytic hydrogenation of the corresponding aromatic di- and/or polynitro compounds with hydrogen, characterized in that, in a reactor with a catalytic fixed bed or trickle bed at a pressure between 5 and 100 bar and a reaction temperature of from 100 to 220° C. a) the aromatic di- and/or polynitro compounds, optionally in the presence of a solvent, are introduced into a product stream comprising essentially recycled hydrogenated product, water and hydrogen, and b) a part of the product stream is removed continuously from the reactor system.
    • 用于通过相应的芳族二 - 和/或多硝基化合物与氢气的催化氢化制备芳族二 - 和/或多胺的连续方法,其特征在于在具有催化固定床或滴流床的反应器中, 5和100巴,反应温度为100至220°Ca.)芳族二 - 和/或多硝基化合物(任选在溶剂存在下)引入包含基本上循环的氢化产物,水和氢的产物流中, 和b)产物流的一部分从反应器系统连续地除去。