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28 条记录 (耗时 0.017 秒)

    Method for producing substantially pure materials
    2.
    发明授权
    Method for producing substantially pure materials 失效
    用于生产基本上纯的材料的方法

    公开(公告)号：US4871696A

    公开(公告)日：1989-10-03

    申请号：US168198

    申请日：1988-03-15

    申请人： Marc S. Newkirk ,  Mark G. Mortenson

    发明人： Marc S. Newkirk ,  Mark G. Mortenson

    IPC分类号： C01F7/42 ,  C01F7/46 ,  C04B35/65

    CPC分类号： C04B35/652 ,  C01F7/422 ,  C01F7/46

    摘要： A method for producing materials having a high purity, which comprises forming an oxidation reaction product of a parent metal and an oxygen-containing vapor-phase oxidant, comminuting the resulting ceramic body and leaching any non-oxidation reaction product and/or corresponding filler materials therefrom, and recovering said substantially pure materials.

    摘要翻译： 一种生产高纯度材料的方法，包括形成母体金属和含氧气相氧化剂的氧化反应产物，粉碎所得陶瓷体并浸出任何非氧化反应产物和/或相应的填料 并回收所述基本上纯的材料。

    Method for production of aluminum oxide
    3.
    发明授权
    Method for production of aluminum oxide 失效
    氧化铝生产方法

    公开(公告)号：US4291011A

    公开(公告)日：1981-09-22

    申请号：US187435

    申请日：1980-09-15

    申请人： Kenneth F. Griffiths

    发明人： Kenneth F. Griffiths

    IPC分类号： B01J10/02 ,  B01J15/00 ,  C01F7/42

    CPC分类号： C01F7/422 ,  B01J10/02 ,  B01J15/00

    摘要： High purity aluminum oxide is produced by continuously reacting high purity metallic aluminum, either solid or liquid, with high purity oxygen, present in stoichiometrically excessive amount, within a vertically oriented cylindrical vessel closed at the top and open at the bottom and having cooled side walls on which there forms a layer of solid aluminum oxide. Newly formed aluminum oxide deposits as a liquid film on the inside surface of this layer and flows downwardly thereover by gravity to the open bottom of the container and thence falls to a collecting vessel below, solidifying either during this fall or after impingement on a moving metallic surface. An annular array of burners, e.g. oxy-hydrogen burners, limits downward growth of the layer below the vessel, prevents closing off by growth of that layer of the space within the vessel, and fosters detachment of the downwardly flowing film in the form of drops to fall to the collection vessel.

    摘要翻译： 高纯度氧化铝是通过将固体或液体的高纯度金属铝连续反应，以高度纯度的氧气（以化学计量过量存在）在垂直取向的圆柱形容器中，在顶部封闭并在底部开口并具有冷却的侧壁 其上形成一层固体氧化铝。 新形成的氧化铝沉积物作为该层的内表面上的液膜，并通过重力向下流动到容器的开口底部，然后落到下面的收集容器中，在该坠落期间或冲击后移动金属 表面。 燃烧器的环形阵列，例如。 氧 - 氢燃烧器限制容器下方的层的向下生长，防止容器内空间层的生长闭合，并且促使向下流动的薄膜以液滴的形式分离以落到收集容器中。

    Alumina powder and method for preparing the same as well as use thereof
    6.
    发明授权
    Alumina powder and method for preparing the same as well as use thereof 有权
    氧化铝粉末及其制备方法及其用途

    公开(公告)号：US08354091B2

    公开(公告)日：2013-01-15

    申请号：US12447660

    申请日：2006-10-31

    申请人： Osamu Kunitomo ,  Takaaki Tanaka

    发明人： Osamu Kunitomo ,  Takaaki Tanaka

    IPC分类号： C01F7/00

    CPC分类号： C01F7/422 ,  C01F7/02 ,  C01F7/027 ,  C01P2002/04 ,  C01P2004/32 ,  C01P2004/61 ,  C01P2006/32 ,  C08G77/04 ,  C08G77/06 ,  C08G77/14 ,  C08L63/00 ,  C08L83/04

    摘要： Herein disclosed is alumina powder incorporated into a composition which should have excellent heat conduction and used as a heat-radiating member and for sealing a semiconductor. The spherical α-alumina powder has an average sphericity of not less than 0.93 and a content of α-crystalline form is not less than 95% and the spherical α-alumina powder is prepared according to the method, which comprises the steps of: (1) softening metallic aluminum powder or alumina powder through the treatment with a flame; (2) solidifying the softened powder by passing the same through a zone maintained at a temperature ranging from 800 to 500° C.; (3) increasing the content of α-phase by passing the solidified powder through a zone maintained at a temperature ranging from 950 to 1,500° C.; and (4) collecting the resulting powdery product while cooling the same.

    摘要翻译： 本文公开了掺入组合物中的氧化铝粉末，其应具有优异的热传导性并用作散热构件并用于密封半导体。 球形α-氧化铝粉末的平均球形度不小于0.93，α-晶型的含量不低于95％，球形α-氧化铝粉末按照该方法制备，其包括以下步骤：（ 1）用火焰处理软化金属铝粉或氧化铝粉末; （2）使软化粉末通过保持在800-500℃的温度的区域而固化; （3）通过使固化的粉末通过保持在950〜1500℃的温度的区域来增加α相的含量; 和（4）在冷却时收集所得粉末状产品。

    Synthesis of rare earth element-containing alumina nanowires
    7.
    发明授权
    Synthesis of rare earth element-containing alumina nanowires 有权
    含稀土元素氧化铝纳米线的合成

    公开(公告)号：US08043598B2

    公开(公告)日：2011-10-25

    申请号：US12324184

    申请日：2008-11-26

    申请人： Mei Cai ,  Xueliang Sun ,  Yong Zhang ,  Ruying Li

    发明人： Mei Cai ,  Xueliang Sun ,  Yong Zhang ,  Ruying Li

    IPC分类号： C01F7/02

    CPC分类号： C01F7/422 ,  B82Y30/00 ,  C01F17/0043 ,  C01P2002/52 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/16 ,  Y10S977/762 ,  Y10T428/12014

    摘要： Rare earth element(s) doped alumina nanowires are formed by a thermal evaporation method in which vapor from aluminum powder and vapor from a rare earth element compound (such as an halide) are reacted in an oxygen-containing inert gas stream to form alumina which deposits as alumina nanowires and as a rare earth element and oxygen-containing material that deposits with and/or on the alumina nanowires. Where the RE-doped alumina nanowires are to be used as catalyst supports, a catalyst material, such as platinum, may be deposited as small particles on the nanowires.

    摘要翻译： 稀土元素掺杂的氧化铝纳米线通过热蒸发法形成，其中来自铝粉的蒸气和来自稀土元素化合物（例如卤化物）的蒸汽在含氧惰性气流中反应以形成氧化铝 作为氧化铝纳米线沉积，以及作为稀土元素和与氧化铝纳米线沉积的氧含量材料。 当RE掺杂的氧化铝纳米线用作催化剂载体时，诸如铂的催化剂材料可以作为小颗粒沉积在纳米线上。

    Method and apparatus for production of minute metal powder
    9.
    发明授权
    Method and apparatus for production of minute metal powder 失效
    用于生产微量金属粉末的方法和设备

    公开(公告)号：US4671906A

    公开(公告)日：1987-06-09

    申请号：US843232

    申请日：1986-03-24

    申请人： Kazuo Yasue ,  Toshiyuki Nishio ,  Mineo Kosaka

    发明人： Kazuo Yasue ,  Toshiyuki Nishio ,  Mineo Kosaka

    IPC分类号： B01J12/02 ,  B01J2/04 ,  B01J10/00 ,  B01J19/10 ,  B05B17/06 ,  B22F9/06 ,  B22F9/12 ,  C01B13/32 ,  C01B21/06 ,  C01B31/30 ,  C01F7/42

    CPC分类号： B05B17/063 ,  B01J10/005 ,  B01J19/10 ,  B01J2/04 ,  B05B17/0615 ,  B05B17/0623 ,  B22F9/06 ,  C01B13/326 ,  C01B21/06 ,  C01B31/30 ,  C01F7/422 ,  C01P2004/32 ,  C01P2004/51 ,  C01P2004/61

    摘要： A minute metal powder is obtained by a method which comprises melting a metal, imparting ultrasonic vibration to the resulting melt, introducing an inert or reducing gas into the ultrasonically vibrated melt thereby producing minute bubbles therein, allowing cavitation to occur as soon as the bubbles reach the surface of the melt and consequently convert the melt into minute droplets, exposing or not exposing the minute droplets to oxygen, nitrogen, or propane, and solidifying the minute droplets by cooling. An apparatus for working the method described above comprises a metal melting tank, metal feeding means, gas feeding means, an ultrasonic vibration generator, means for detecting and retaining the surface of melt, and means for converting melt into minute droplets and solidifying the minute droplets by cooling.

    摘要翻译： 通过以下方法获得微小的金属粉末，该方法包括熔化金属，向所得熔体施加超声波振动，将惰性或还原性气体引入超声波振动熔体中，从而在其中产生微小气泡，一旦气泡到达即可发生气蚀 熔体的表面，从而将熔体转化成微小的液滴，暴露或不将微滴暴露于氧气，氮气或丙烷，并通过冷却固化微滴。 用于上述方法的装置包括金属熔化槽，金属进料装置，气体供给装置，超声波振动发生器，用于检测和保持熔体表面的装置，以及用于将熔体转变成微小液滴并固化微滴的装置 通过冷却。