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    • 6. 发明授权
    • Preparation of amines and aminonitriles
    • 胺和氨基腈的制备
    • US5789621A
    • 1998-08-04
    • US693983
    • 1996-08-08
    • Werner SchnurrGuido VoitKlemens FlickRolf-Hartmuth Fischer
    • Werner SchnurrGuido VoitKlemens FlickRolf-Hartmuth Fischer
    • B01J23/78B01J23/94B01J27/187B01J27/28B01J38/10C07B43/04C07B61/00C07C20060101C07C209/48C07C209/52C07C211/12C07C211/35C07C253/30C07C255/24C07C209/02
    • C07C209/48C07C209/52
    • A process for preparing an NH.sub.2 -containing compound by hydrogenating a compound containing at least one unsaturated carbon-nitrogen bond with hydrogen in the presence of a catalyst at temperatures not below room temperature and elevated hydrogen partial pressure in the presence or absence of a solvent which process includes the following steps: a) using a catalyst comprising a cobalt- and/or iron-containing catalyst, and b) after the conversion based on the compound to be hydrogenated and/or the selectivity based on the desired product has or have dropped below a defined value or the amount of an unwanted by-product has risen beyond a defined value, interrupting the hydrogenation by stopping the feed of the compound to be hydrogenated and of the solvent, if used, c) treating the catalyst at from 150.degree. to 400.degree. C. with hydrogen using a hydrogen pressure within the range from 0.1 to 30 MPa and a treatment time within the range from 2 to 48 h, and d) subsequently continuing the hydrogenation of the compound containing at least one unsaturated carbon-nitrogen bond.
    • 在催化剂存在下,在不低于室温和升高的氢分压的情况下,在存在或不存在溶剂的情况下,通过氢化含有至少一个不饱和碳 - 氮键的化合物与氢气来制备含NH 2的化合物的方法, 方法包括以下步骤:a)使用包含含钴和/或含铁催化剂的催化剂,和b)基于待氢化的化合物转化后,和/或基于所需产物的选择性具有或已经下降 低于定义的值或不想要的副产物的量已经超过定义的值,如果使用,则通过停止待氢化化合物的进料和溶剂的中断氢化,c)在150℃下处理催化剂 在氢气压力为0.1〜30MPa,处理时间为2〜48h的范围内,使氢气变为400℃,d)随后继续进行水压 该化合物含有至少一个不饱和碳 - 氮键。