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    • 4. 发明授权
    • Process for the preparation of polyoxyalkylene polyamines
    • 聚氧化烯多胺的制备方法
    • US4766245A
    • 1988-08-23
    • US707126
    • 1985-03-01
    • John M. LarkinTerry L. Renken
    • John M. LarkinTerry L. Renken
    • C08G65/32C08G65/325C07C85/02C07C85/06
    • C08G65/3255
    • An improved method for the manufacture of high molecular weight polyoxyalkylene amines wherein a hydroxy-terminated polyoxyalkylene compound having a molecular weight of at least 500 is reacted with ammonia in the presence of hydrogen and Raney nickel/aluminum under anhydrous reductive amination conditions to provide the corresponding polyoxyalkylene amine in good yield and selectivity.The Raney nickel/aluminum is a nickel/aluminum alloy treated with a base, such as sodium hydroxide, so as to only partially leach the aluminum from the alloy, such that the final product contains from about 60 wt. % to about 75 wt. % of nickel and, correspondingly, from about 25 wt. % to about 40 wt. % of aluminum and is preferably used in nugget form.
    • 制备高分子量聚氧化烯胺的改进方法,其中分子量至少为500的羟基封端的聚氧化烯化合物在无水还原胺化条件下在氢和阮内镍/铝的存在下与氨反应,以提供相应的 聚氧亚烷基胺具有良好的收率和选择性。 阮内镍/铝是用碱如氢氧化钠处理的镍/铝合金,以便仅从合金中部分浸出铝,使得最终产物含有约60wt。 %至约75wt。 的镍,相应地为约25wt。 %至约40wt。 铝的百分比,优选以熔核形式使用。