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51 条记录 (耗时 0.021 秒)

    Manufacture of cobalt-modified .gamma.-iron(III)oxides
    1.
    发明授权
    Manufacture of cobalt-modified .gamma.-iron(III)oxides 失效
    钴改性的{65-铁（III）氧化物的制造

    公开(公告)号：US4064292A

    公开(公告)日：1977-12-20

    申请号：US656800

    申请日：1976-02-10

    申请人： Eduard Schoenafinger ,  Matthias Schwarzmann ,  Eberhard Koester

    发明人： Eduard Schoenafinger ,  Matthias Schwarzmann ,  Eberhard Koester

    IPC分类号： G11B5/706 ,  H01F10/02

    CPC分类号： G11B5/70689 ,  G11B5/70673

    摘要： The invention relates to the manufacture of acicular cobalt-modified .gamma.-iron(III) oxide by coating an acicular .alpha.-iron(III) oxide or its hydrate with an inorganic protective coating, subsequent reduction to magnetite at 350.degree. to 650.degree. C, application of the cobalt compound to this magnetite or to the .gamma.-iron(III) oxide obtained therefrom by oxidation, and subsequent heat treatment at 80.degree. to 300.degree. C, if necessary with simultaneous oxidation of the magnetite to the corresponding .gamma.-iron(III) oxide. This iron oxide has high coercivity and can be used as the magnetic component in magnetic recording media for recording high frequencies without having the disadvantage of thermal and mechanical instability.

    摘要翻译： 本发明涉及通过用无机保护涂层涂覆针状α-铁（III）或其水合物，然后在350至650℃下还原成磁铁矿，制造针状钴改性的氧化钇（III） 通过氧化将钴化合物施加到该磁铁矿或由其获得的γ-铁氧合物（III），随后在80℃至300℃下进行热处理，如果需要，将磁铁矿同时氧化成相应的γ-铁（ III）氧化物。 该氧化铁具有高的矫顽力，并且可以用作用于记录高频的磁记录介质中的磁性成分，而不存在热和机械不稳定性的缺点。

    Preparation of a silver catalyst
    4.
    发明授权
    Preparation of a silver catalyst 失效
    银催化剂的制备

    公开(公告)号：US5011809A

    公开(公告)日：1991-04-30

    申请号：US471544

    申请日：1990-01-29

    申请人： Klaus Herzog ,  Karl-Heinz Boehning ,  Heinrich Aichinger ,  Juergen Plueckhan ,  Wolf D. Mross ,  Matthias Schwarzmann

    发明人： Klaus Herzog ,  Karl-Heinz Boehning ,  Heinrich Aichinger ,  Juergen Plueckhan ,  Wolf D. Mross ,  Matthias Schwarzmann

    IPC分类号： B01J23/66 ,  B01J37/02 ,  C07D301/10

    CPC分类号： B01J23/66 ,  B01J37/0201 ,  C07D301/10

    摘要： Supported silver catalysts which contain one or more alkali metals are prepared in a two-stage process by doping a basic catalyst which contains silver in metallic form and may also contain lithium with the heavy alkali metal sodium, potassium, rubidium and/or cesium using an impregnating solution which contains the heavy alkali metal and one or more nitrates of the general formulaR.sup.+ NO.sub.3.sup.-wherein R.sup.+ is an ammonium, hydrazinium, C.sub.1 -C.sub.12 -monoalkylammonium, C.sub.2 -C.sub.12 -dialkylammonium, C.sub.3 -C.sub.12 -trialkylammonium or C.sub.4 -C.sub.12 -tetraalkylammonium cation.

    摘要翻译： 含有一种或多种碱金属的负载型银催化剂通过掺杂含有金属形式的银的碱性催化剂并且还可以使用重质碱金属钠，钾，铷和/或铯来包含锂，通过两步法制备。 含有重质碱金属和一种或多种通式为R + NO 3 - 的硝酸盐的浸渍溶液，其中R +是铵，肼，C1-C12-单烷基铵，C2-C12-二烷基铵，C3-C12-三烷基铵或C4-C12 四烷基铵阳离子。

    Manufacture of bifunctional catalysts for the conversion of hydrocarbons
    8.
    发明授权
    Manufacture of bifunctional catalysts for the conversion of hydrocarbons 失效
    用于碳氢化合物转化的双功能催化剂的制造

    公开(公告)号：US4252688A

    公开(公告)日：1981-02-24

    申请号：US6526

    申请日：1979-01-25

    申请人： Ewald Gallei ,  Laszlo Marosi ,  Matthias Schwarzmann ,  Ernst Lorenz

    发明人： Ewald Gallei ,  Laszlo Marosi ,  Matthias Schwarzmann ,  Ernst Lorenz

    IPC分类号： B01J29/12 ,  C10G47/18

    CPC分类号： B01J29/126 ,  C10G47/18

    摘要： A process for the manufacture of a bifunctional catalyst for the conversion of hydrocarbons, which contains a crystalline aluminosilicate of the type of the Y-zeolites as the acidic component and a noble metal as the hydrogenation component. The process constitutes a technologically simple way of manufacturing bifunctional zeolite catalysts which have at least the same activity and the same life as the catalysts manufactured by conventional methods, coupled with great heat stability and exhibit activity in the presence of H.sub.2 O, H.sub.2 S and NH.sub.3 at relatively high temperatures.

    摘要翻译： 制备用于转化烃的双功能催化剂的方法，其包含作为酸性组分的Y型沸石类型的结晶硅铝酸盐和作为氢化组分的贵金属。 该方法构成了一种技术上简单的双功能沸石催化剂的制备方法，其具有与通过常规方法制备的催化剂具有至少相同的活性和相同寿命，并具有相当大的热稳定性和在相对于H 2 O，H 2 S和NH 3存在下显示活性 高温