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64 条记录 (耗时 0.018 秒)

    Ultrafine mixed-crystal oxide, production process and use thereof
    42.
    发明授权
    Ultrafine mixed-crystal oxide, production process and use thereof 有权
    超细混晶氧化物，生产工艺及其应用

    公开(公告)号：US06572964B2

    公开(公告)日：2003-06-03

    申请号：US09775549

    申请日：2001-02-05

    申请人： Jun Tanaka ,  Shinichiro Tomikawa

    发明人： Jun Tanaka ,  Shinichiro Tomikawa

    IPC分类号： B32B516

    CPC分类号： B82Y30/00 ,  C01B13/22 ,  C01F7/302 ,  C01G23/00 ,  C01G23/002 ,  C01P2002/52 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/12 ,  C01P2006/60 ,  C08K3/22 ,  C09C1/3661 ,  C09D7/61 ,  C09D17/007 ,  Y10T428/25 ,  Y10T428/256 ,  Y10T428/257 ,  Y10T428/2927 ,  Y10T428/2982

    摘要： A process for producing an ultrafine mixed-crystal oxide characterized by producing an ultrafine mixed crystal oxide comprising primary particles in a mixed crystal state with a BET specific surface area of 10 to 200 m2/g, comprising the step of subjecting a halogenated metal to high temperature oxidation with an oxidizing gas to produce a metal oxide by a vapor phase production method, wherein said halogenated metal is in the form of a mixed gas (a mixed halogenated metal gas) comprising at least two compounds having a different metal elements selected from the group consisting of chlorides, bromides, and iodides of titanium, silicon, and aluminum, and said mixed halogenated metal gas and said oxidizing gas are independently preheated to 500° C. or more prior to a reaction, a ultrafine mixed crystal oxide obtained by the process, and use of the oxide.

    摘要翻译： 一种超细混晶氧化物的制造方法，其特征在于，制造包含BET比表面积为10〜200m 2 / g的混晶的初级粒子的超细混晶氧化物，其特征在于，包括使卤化金属高 用氧化气体进行温度氧化，通过气相生产方法生产金属氧化物，其中所述卤化金属为混合气体（混合卤化金属气体）的形式，其包含至少两种具有选自以下的金属元素的化合物： 由钛，硅和铝的氯化物，溴化物和碘化物组成的组，并且所述混合卤化金属气体和所述氧化气体在反应之前独立地预热至500℃以上，由 过程和使用氧化物。

    Amorphous aluminum oxides, methods of production and uses
    46.
    发明授权
    Amorphous aluminum oxides, methods of production and uses 失效
    非晶铝氧化物，生产方法和用途

    公开(公告)号：US5061474A

    公开(公告)日：1991-10-29

    申请号：US436246

    申请日：1989-11-14

    申请人： Ingo Pauli ,  Peter Kleinschmit ,  Rudolf Schwarz

    发明人： Ingo Pauli ,  Peter Kleinschmit ,  Rudolf Schwarz

    IPC分类号： B01J21/04 ,  C01F7/02 ,  C01F7/30 ,  C09K3/14

    CPC分类号： C01F7/302 ,  B01J21/04 ,  C01F7/02 ,  C09K3/1409 ,  C01P2002/02 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/12 ,  C01P2006/82

    摘要： X-ray amorphous, aluminum oxide which exhibits a specific surface area (BET) according to DIN 66 131 of >10 m.sup.2 /g, an average particle size of .gtoreq.0.1 .mu.m and a water content of >10%. The X-ray amorphous aluminum oxide can be produced by reacting water vapor and vaporous aluminum trichloride in a molar ratio of 1.5 to 10:1, preferably 7.+-.1:1=H.sub.2 O:alCl.sub.3 at a temperature of 200.degree. to 1000.degree. C., preferably 600.degree..+-.50.degree. C. and at a dwell time of >1 sec., preferably 3.5.+-.1 sec. and a partial vacuum of 100.+-.10 mm H.sub.2 O column. By means of calcination thereof an aluminum oxide can be obtained which consists of .gtoreq.90% by weight of .alpha.-aluminum oxide and exhibits a specific surface area (BET) according to DIN 66 131 of >5 m.sup.2 /g and an average particle size of .gtoreq.0.1 .mu.m.

    摘要翻译： 根据DIN 66 131> 10m 2 / g的比表面积（BET），平均粒径>0.1μm，含水量> 10％的X射线无定形氧化铝。 X射线无定形氧化铝可以通过使水蒸汽和三氯化铝与摩尔比为1.5〜10:1，优选为7 +/- 1：1 = H 2 O:AlCl 3在200〜1000℃的温度下反应来制造。 优选600℃±50℃，停留时间> 1秒，优选3.5 +/- 1秒。 和100 +/- 10毫米H2O柱的部分真空。 通过煅烧，可以获得氧化铝，其由≥/ = 90重量％的α-氧化铝组成，并且根据DIN 66 131> 5m 2 / g表现出比表面积（BET），平均颗粒 大小> / = 0.1亩。

    Process for the production of finely divided oxides of metals or silicon
    47.
    发明授权
    Process for the production of finely divided oxides of metals or silicon 失效
    用于生产细分的金属或硅的氧化物的方法

    公开(公告)号：US4276274A

    公开(公告)日：1981-06-30

    申请号：US708776

    申请日：1976-07-26

    申请人： Emil Heckel

    发明人： Emil Heckel

    IPC分类号： C01B33/12 ,  C01B13/24 ,  C01B13/30 ,  C01B33/16 ,  C01F7/30 ,  C01G23/07 ,  C01B33/18 ,  C01F7/02 ,  C01G23/06

    CPC分类号： C01B13/30 ,  C01F7/302 ,  C01G23/075 ,  C01P2006/12

    摘要： In an improved process for the production of a finely divided oxide of a metal, silicon or mixtures thereof by the hydrolytic conversion of a corresponding volatile chloride of said metal, silicon or mixtures thereof in a flame; wherein said volatile chloride or said mixture of volatile chlorides in admixture with a combustible hydrogen-containing gas and air or oxygen are fed to a flame emitting from a burner into a reaction chamber to thereby form an oxide aerosol in waste gases from said burner; cooling said oxide and said waste gases; and separating said oxide from said waste gases; wherein the improvement comprises maintaining said waste gases substantially free of chlorine by reducing chlorine that forms during said conversion in said flame with hydrogen while cooling said waste gas below the temperature at which hydrogen and oxygen react in said waste gas.

    摘要翻译： 在通过在火焰中水解转化所述金属，硅或其混合物的相应的挥发性氯化物来制备金属，硅或其混合物的细碎氧化物的改进方法中， 其中所述挥发性氯化物或所述挥发性氯化物混合物与可燃的含氢气体和空气或氧气的混合物被供给到从燃烧器发射到反应室中的火焰，从而在来自所述燃烧器的废气中形成氧化物气溶胶; 冷却所述氧化物和所述废气; 并从所述废气中分离出所述氧化物; 其中所述改进包括通过在氢气和氧气在所述废气中反应的温度下将所述废气冷却到低于在所述火焰中的所述转化期间形成的氯来保持所述废气基本上不含氯。

    Process for the pyrogenous production of very finely divided oxides of a metal and/or of a metalloid
    48.
    发明授权
    Process for the pyrogenous production of very finely divided oxides of a metal and/or of a metalloid 失效
    用于热致生产金属和/或准金属的非常细碎的氧化物的方法

    公开(公告)号：US4258023A

    公开(公告)日：1981-03-24

    申请号：US85358

    申请日：1979-10-16

    申请人： Josef Schmid ,  Ludwig Lange ,  Hans Klebe ,  Dieter Schutte

    发明人： Josef Schmid ,  Ludwig Lange ,  Hans Klebe ,  Dieter Schutte

    IPC分类号： C01G1/02 ,  C01B13/22 ,  C01B13/24 ,  C01B33/16 ,  C01B33/18 ,  C01F7/30 ,  C01G17/02 ,  C01G23/07 ,  C01B33/113 ,  C01F7/02 ,  C01G23/047

    CPC分类号： C01B13/22 ,  C01B33/183 ,  C01F7/302 ,  C01G17/02 ,  C01G23/07

    摘要： In case of the pyrogenous production of metal oxides or metalloid oxides, whenever a halogen compound is used as a starting material, an elementary halogen is formed as a byproduct. This may be converted in the cooling section of the reaction apparatus with hydrogen into hydrogen halide.For a better temperature control and prevention of uncontrolled deflagration of the hydrogen in case of the halogen detonating gas reaction, according to the invention the hydrogen is introduced into the cooling section by means of a double jacket pipe, whereby an inert gas is introduced additionally by way of the interstice between the inside wall and the outside jacket of the double jacket pipe into the cooling section.

    摘要翻译： 在热原生成金属氧化物或准金属氧化物的情况下，只要使用卤素化合物作为原料，就形成基本的卤素作为副产物。 这可以在氢气的反应装置的冷却段中转化成卤化氢。 为了更好的温度控制和防止在卤素引爆气体反应的情况下氢气的不受控制的爆燃，根据本发明，氢气通过双层套管引入冷却部分，由此惰性气体另外通过 双层套管的内壁和外套之间的间隙的方式进入冷却段。