Process for preparation of diamines by catalytic amination of
aminoalcohols
    2.
    发明授权
    Process for preparation of diamines by catalytic amination of aminoalcohols 失效
    通过氨基醇的催化胺化制备二胺的方法

    公开(公告)号:US5608113A

    公开(公告)日:1997-03-04

    申请号:US513632

    申请日:1995-08-10

    摘要: In a process for preparing diamines from aminoalcohols and nitrogen compounds selected from the group consisting of ammonia and primary and secondary amines at from 80.degree. to 250.degree. C. and pressures of from 1 to 400 bar using hydrogen in the presence of a zirconium, copper, nickel catalyst, the catalytically active composition comprises from 20 to 85% by weight of oxygen-containing zirconium compounds, calculated as ZrO.sub.2, from 1 to 30% by weight of oxygen-containing compounds of copper, calculated as CuO, from 30 to 70% by weight of oxygen-containing compounds of nickel, calculated as NiO, from 0.1 to 5% by weight of oxygen-containing compounds of molybdenum, calculated as MoO.sub.3, and from 0 to 10% by weight of oxygen-containing compounds of aluminum and/or manganese, calculated as Al.sub.2 O.sub.3 and MnO.sub.2 respectively.

    摘要翻译: 在使用氢存在下,在锆存在下,使用氢气从80℃至250℃,压力为1至400巴的氨基和伯胺和仲胺从氨基醇和氮化合物中制备二胺的方法中, 镍催化剂,催化活性组合物包含20至85重量%的以ZrO 2计算的含氧锆化合物,1至30重量%的以CuO计的含氧化合物铜30至70 按NiO计的含镍化合物的重量百分比为0.1至5重量%的按MoO 3计算的含氧化合物的钼和0至10重量%的含氧化合物的铝和 /或锰,分别计算为Al2O3和MnO2。

    Removal of halides from halide-containing nitrile mixtures
    4.
    发明授权
    Removal of halides from halide-containing nitrile mixtures 失效
    从含卤素腈混合物中除去卤化物

    公开(公告)号:US6153784A

    公开(公告)日:2000-11-28

    申请号:US24457

    申请日:1998-02-17

    摘要: Halides are removed from halide-containing nitrile mixtures by(a) thermally treating the halide-containing nitrile mixture,(b) subsequently adding a base to the thermally treated nitrile mixture and(c) subsequently separating off the base from the nitrile mixture.Amines are prepared by(A) reacting alkyl halides with metal cyanides in an at least two-phase reaction medium in the presence of halide-containing phase-transfer catalysts to give alkanenitriles,(B) separating off the resulting halide-containing alkanenitrile mixture phase and(C) further treating the halide-containing alkanenitrile mixture phase, as described in the stages(a)-(c) removing halides from halide-containing nitrile mixtures and(d) hydrogenating nitrites obtained in stage (c) to give amines, in the presence of suspended or fixed-bed catalysts.

    摘要翻译: 通过(a)热处理含卤素腈混合物,(b)随后向经热处理的腈混合物中加入碱,和(c)随后将腈与腈混合物分离,从卤化物腈混合物中除去卤化物。 胺通过(A)在卤化物相转移催化剂存在下在至少两相反应介质中将烷基卤与金属氰化物反应得到烷腈,(B)将所得的含卤素的烷腈混合物相分离 (C)进一步处理含卤化物的腈腈混合物相,如步骤(a) - (c)所述从卤化物腈混合物中除去卤化物,和(d)氢化阶段(c)中得到的亚硝酸盐,得到胺, 在悬浮或固定床催化剂存在下。