利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

95 条记录 (耗时 0.027 秒)

    Preparation of acicular gamma-iron(III) oxide of high coercive force
    4.
    发明授权
    Preparation of acicular gamma-iron(III) oxide of high coercive force 失效
    制备高矫顽力的针状γ-铁（III）氧化物

    公开(公告)号：US4362708A

    公开(公告)日：1982-12-07

    申请号：US320014

    申请日：1981-11-10

    申请人： Manfred Ohlinger ,  Hans Reichert ,  Guenter Vaeth ,  Friedrich R. Faulhaber ,  Horst Autzen ,  Peter Rudolf ,  Joachim Werther

    发明人： Manfred Ohlinger ,  Hans Reichert ,  Guenter Vaeth ,  Friedrich R. Faulhaber ,  Horst Autzen ,  Peter Rudolf ,  Joachim Werther

    IPC分类号： C01G49/02 ,  C01G49/06 ,  G11B5/706 ,  H01F1/11

    CPC分类号： G11B5/70663 ,  C01G49/06 ,  C01P2004/10 ,  C01P2006/12 ,  C01P2006/42

    摘要： A process for the preparation of acicular gamma-iron(III) oxide of high coercive force by reducing acicular iron(III) oxide hydroxide, as it is being passed continuously through a furnace having two or more heating zones at from 190.degree. to 700.degree. C., by means of a gas mixture which is produced by passing a stream of inert gas, heated to above 250.degree. C., through an organic substance also heated to above 250.degree. C. in a vessel, and, on introduction into the furnace, is first brought into contact with the .alpha.-iron(III) oxide formed from the iron(III) oxide hydroxide by elimination of water in the first heating zone of the furnace at from 190.degree. to 250.degree. C., the .alpha.-iron(III) oxide thereby being converted to magnetite which is subsequently oxidized with an oxygen-containing gas at from 150.degree. to 400.degree. C., to give gamma-iron(III) oxide.

    摘要翻译： 一种通过还原针状氧化铁（III）氢氧化物制备高矫顽力的针状γ-铁（III）氧化物的方法，因为它连续通过具有两个或多个加热区的炉子在190℃至700℃ 通过将加热至高于250℃的惰性气体流通过容器中也被加热至高于250℃的有机物质，并通过引入到 炉子首先通过在190℃至250℃的炉的第一加热区中消除水而与由氧化铁（III）氧化物形成的α-铁（III）氧化物接触， 氧化铁（III），从而转化为磁铁矿，随后在150-400℃下用含氧气体氧化，得到氧化三氯化铁（III）。

    Manufacture of acicular cobalt-containing magnetic iron oxide
    7.
    发明授权
    Manufacture of acicular cobalt-containing magnetic iron oxide 失效
    针状钴磁性氧化铁的制造

    公开(公告)号：US4287233A

    公开(公告)日：1981-09-01

    申请号：US116543

    申请日：1980-01-29

    申请人： Peter Rudolf ,  Werner Steck ,  Eberhard Koester ,  Manfred Ohlinger ,  Christof Jaeckh

    发明人： Peter Rudolf ,  Werner Steck ,  Eberhard Koester ,  Manfred Ohlinger ,  Christof Jaeckh

    IPC分类号： G11B5/706 ,  C01G49/06

    CPC分类号： G11B5/70657

    摘要： A process for the manufacture of acicular magnetic iron oxide consisting of core of gamma-iron(III) oxide and a ferrite shell which contains, based on the total amount of magnetic material, from 0.2 to 12 per cent by weight of cobalt(II) ions and from 0.1 to 15 per cent by weight of iron(II) ions, wherein a precipitate of cobalt(II) hydroxide and iron (II) hydroxide is applied to acicular gamma-iron(III) oxide particles and the latter are heated at 100.degree.-200.degree. C.

    摘要翻译： 制造由γ-铁（III）氧化物核心和铁氧体壳组成的针状磁性氧化铁的方法，其包含基于磁性材料总量的0.2至12重量％的钴（II） 离子和0.1至15重量％的铁（II）离子，其中将氢氧化钴（II）和氢氧化铁（II）的沉淀物施加到针状γ-铁（III）氧化物颗粒上，并将后者加热至 100℃-200℃

    METHOD FOR PRODUCING PROPYLENE OXIDE
    10.
    发明申请
    METHOD FOR PRODUCING PROPYLENE OXIDE 有权
    生产丙烯氧化物的方法

    公开(公告)号：US20100003173A1

    公开(公告)日：2010-01-07

    申请号：US12556961

    申请日：2009-09-10

    申请人： Ulrich Müller ,  Georg Krug ,  Peter Rudolf ,  Joaquim Henrique Teles ,  Hans-Georg Göbbel ,  Peter Bassler

    发明人： Ulrich Müller ,  Georg Krug ,  Peter Rudolf ,  Joaquim Henrique Teles ,  Hans-Georg Göbbel ,  Peter Bassler

    IPC分类号： B01J8/02 ,  B01J29/06

    CPC分类号： C07D301/12 ,  Y02P20/52

    摘要： Process for preparing propylene oxide, which comprises at least the steps (i) and (ii): (i) providing a catalyst comprising at least one porous oxidic material; (ii) reacting propene with a hydroperoxide in at least one nitrile as solvent or in a solvent mixture comprising at least one nitrile in the presence of the catalyst of (i), wherein the at least one porous oxidic material is a zeolite which is assigned X-ray-crystallographically to the MWW type.

    摘要翻译： 制备环氧丙烷的方法，其至少包括步骤（i）和（ii）：（i）提供包含至少一种多孔氧化物质的催化剂; （ii）使丙烯与至少一种腈作为溶剂中的氢过氧化物反应或在包含至少一种腈的溶剂混合物中，在（i）的催化剂存在下反应，其中所述至少一种多孔氧化物质是被分配的沸石 X射线晶体学到MWW型。