Method for producing aliphatic alpha, omega-amino nitriles
    93.
    发明授权
    Method for producing aliphatic alpha, omega-amino nitriles 有权
    生产脂肪族α,ω-氨基腈的方法

    公开(公告)号:US06255521B1

    公开(公告)日:2001-07-03

    申请号:US09508965

    申请日:2000-03-20

    IPC分类号: C07C25303

    摘要: The invention relates to a method for producing aliphatic alpha-omega amino nitriles in the presence of a catalyst composed of (a) iron or an iron based compound or a mixture thereof (b) 0.01 to 5 wt. %, in relation to (a), a promoter based on 2, 3, 4, or 5 elements selected from the group comprising aluminum, silicon, zirconium, titanium, and vanadium, and © to 0.5 wt. % in relation to (a) a compound based on an alkaline metal or alkaline-earth metal. The inventive method is characterized in that the aliphatic alpha-omega dinitrile contains 1.0 ppm or more phosphorus. Catalysts are obtainable through the reductive and optional successive passivation of magnetite, whereby the catalysts have a BET surface of 3 to 10 m2/g, a total pore volume of 0.05 to 0.2 ml/g, an average pore diameter of 0.03 to 0.1 mm and a pore volume portion in the range of 0.01 to 0.1 mm of 50 to 70%.

    摘要翻译: 本发明涉及在由(a)铁或铁基化合物或其混合物(b)组成的催化剂存在下,生产脂族α-ω氨基腈的方法(b)0.01至5wt。 %,关于(a),基于选自铝,硅,锆,钛和钒的2,3,4或5种元素的促进剂,和(C)至0.5重量% 相对于(a)基于碱金属或碱土金属的化合物的%。 本发明的方法的特征在于脂族α-ω二腈含有1.0ppm或更多的磷。 催化剂可以通过磁铁矿的还原和任选的连续钝化获得,其中催化剂的BET表面积为3至10m 2 / g,总孔体积为0.05至0.2ml / g,平均孔径为0.03至0.1mm, 0.01〜0.1mm的孔体积部分为50〜70%。