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32 条记录 (耗时 0.009 秒)

    Reduction of aromatic nitro compounds with Raney nickel catalyst
    31.
    发明授权
    Reduction of aromatic nitro compounds with Raney nickel catalyst 失效
    用阮内镍催化剂还原芳族硝基化合物

    公开(公告)号：US4287365A

    公开(公告)日：1981-09-01

    申请号：US47420

    申请日：1979-06-11

    申请人： Hans-Joachim Becker ,  Walter Schmidt

    发明人： Hans-Joachim Becker ,  Walter Schmidt

    IPC分类号： B01J25/02 ,  C07B61/00 ,  C07C67/00 ,  C07C209/00 ,  C07C209/36 ,  C07C211/46 ,  C07C211/51 ,  C07C85/11

    CPC分类号： B01J25/02 ,  C07C209/36

    摘要： A particularly active Raney nickel catalyst is provided with a high-iron content, containing about 10 to 30% by weight of iron relative to the sum of the active metals nickel and iron. The catalyst can be prepared by treating aluminum/nickel/iron alloys which contain (1) 21 to 49.5% by weight of nickel, (2) 3 to 16.5% by weight of iron and (3) aluminum to make up to 100%, with an inorganic or organic base and separating the catalyst from the reaction mixture. According to the invention, said particularly active Raney nickel catalysts are used for the hydrogenation of organic compounds.

    摘要翻译： 具有高铁含量的特别活性的阮内镍催化剂相对于活性金属镍和铁的总和含有约10至30重量％的铁。 催化剂可以通过处理含有（1）21至49.5重量％的镍，（2）3至16.5重量％的铁和（3）铝以制成100％的铝/镍/铁合金， 与无机或有机碱反应并将催化剂与反应混合物分离。 根据本发明，所述特别活性的阮内镍催化剂用于有机化合物的氢化。

    Spherical fuel elements made of graphite for temperature reactors and process for reworking it after the irradiation
    32.
    发明授权
    Spherical fuel elements made of graphite for temperature reactors and process for reworking it after the irradiation 失效
    用于温度反应器的由石墨制成的球形燃料元件，以及在照射后对其进行再加工的工艺

    公开(公告)号：US4134941A

    公开(公告)日：1979-01-16

    申请号：US753098

    申请日：1976-12-21

    申请人： Milan Hrovat ,  Hans-Joachim Becker ,  Hans Huschka

    发明人： Milan Hrovat ,  Hans-Joachim Becker ,  Hans Huschka

    IPC分类号： G21C3/28 ,  G21C19/48 ,  G21C21/00 ,  G21C21/02

    CPC分类号： G21C19/48 ,  G21C3/28 ,  Y02E30/40 ,  Y02W30/884

    摘要： There are provided pressed spherical fuel elements for high temperature reactors made of a graphite matrix with separate embedded coated fuel and fertile material particles wherein the fuel elements comprise 3 concentric layers including a graphite nucleus or core (1) which only contains fertile material particles (4), this graphite nucleus (1) is surrounded by a graphite zone (2) which only contains the fuel particles (5) and this is encased in a shell (3) of pure graphite, the same graphite material being present in all three layers.

    摘要翻译： 提供了用石墨基质制成的高温反应器的压制球形燃料元件，其具有单独的嵌入式涂覆燃料和可育材料颗粒，其中燃料元件包括3个同心层，包括仅含有可育材料颗粒的石墨核或核（1） ），该石墨核（1）被只包含燃料颗粒（5）的石墨区（2）包围，并被包裹在纯石墨的壳（3）中，相同的石墨材料存在于所有三层中 。