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    Pyrogenically produced silicon dioxide, its producing method, use of the same, and aqueous dispersion containing silicon dioxide
    1.
    发明专利
    Pyrogenically produced silicon dioxide, its producing method, use of the same, and aqueous dispersion containing silicon dioxide 有权
    生产二氧化硅，其生产方法，使用方法和含二氧化硅的水性分散体

    公开(公告)号：JP2006193401A

    公开(公告)日：2006-07-27

    申请号：JP2005035119

    申请日：2005-02-10

    Applicant: Degussa Ag ,  デグサ アクチエンゲゼルシャフトDegussa AG

    Inventor： SCHUMACHER KAI ,  JACOBSEN HAUKE ,  BRANDES RALPH DR ,  ROCHNIA MATTHIAS DR ,  SHIBAZAKI TAKEYOSHI ,  ISHIBASHI NARIYASU

    IPC: C01B33/18 ,  B01J21/08 ,  B01J32/00 ,  C08K3/36 ,  C08L101/00 ,  C09D7/12 ,  C09K3/14

    CPC classification number: C09K3/1463 ,  C01B33/1417 ,  C01B33/183 ,  Y10T428/2982 ,  Y10T428/2991 ,  Y10T428/2993 ,  Y10T428/2998

    Abstract: PROBLEM TO BE SOLVED: To provide a silicon dioxide powder that can be mixed quickly into liquid media. SOLUTION: The silicon dioxide powder is a pyrogenically produced silicon dioxide powder in the form of aggregates of primary particles having a BET surface area of 90±15 m 2 /g, wherein the aggregates display an average surface area of 10,000 to 20,000 nm 2 , an average equivalent circle diameter of 90 to 130 nm and an average circumference of 1,000 to 1,400 nm. The powder is produced by a pyrogenic process in which SiCl 4 and a second silicon component selected from the group comprising H 3 SiCl, H 2 SiCl 2 , HSiCl 3 , CH 3 SiCl 3 , (CH 3 ) 2 SiCl 2 , (CH 3 ) 3 SiCl and (n-C 3 H 7 )SiCl 3 are mixed with primary air and a combustion gas and burnt into a reaction chamber. At this time, secondary air is also introduced into the reaction chamber, and the feed materials are chosen so that the adiabatic flame temperature T ad becomes 1,810 to 1,890°C. A dispersion containing the pyrogenically produced silicon dioxide powder is also provided. COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题：提供可以快速混合到液体介质中的二氧化硅粉末。 解决方案：二氧化硅粉末是热原生产的二氧化硅粉末，其形式为BET表面积为90±15m 2 / SP / g / g的一次粒子的聚集体，其中聚集体显示出 平均表面积为10,000〜20,000nm 2 ，平均当量圆直径为90〜130nm，平均周长为1000〜1400nm。 该粉末是通过热解法制备的，其中SiCl 4 和第二硅成分选自包含H 3 SB 3 SiCl，H SB 2 SiCl 2 ，HSiCl 3 ，CH 3 SiCl 3 SB 3，（CH 3 SB 3） SB> 2 SiCl 2 ，（CH 3 SB 3）3 SiCl和（nC 3 SB 3） SB> 7 ）将SiCl 3 SB与一次空气和燃烧气体混合并燃烧到反应室中。 此时，二次空气也被引入到反应室中，并且进料材料被选择为使得绝热火焰温度T ad 变为1,810至1,890℃。 还提供含有热解法生产的二氧化硅粉末的分散体。 版权所有（C）2006，JPO＆NCIPI

    SPHERICAL PIGMENT, ITS PRODUCTION AND USE THEREOF
    4.
    发明专利
    SPHERICAL PIGMENT, ITS PRODUCTION AND USE THEREOF 失效

    公开(公告)号：JPH10218608A

    公开(公告)日：1998-08-18

    申请号：JP32969997

    申请日：1997-11-14

    Applicant: DEGUSSA

    Inventor： JOACOBSEN HAUKE DR ,  HARTMANN WERNER DR ,  KATUSIC STIPAN ,  SCHULZ ANDREAS DR ,  GIESECKE NORBERT ,  BRANDES RALPH DR ,  SPERLICH JOERG DR

    IPC: C01B13/20 ,  C03C1/04 ,  C04B33/14 ,  C08K9/02 ,  C09C1/00 ,  C09D7/12 ,  C09K3/00

    Abstract: PROBLEM TO BE SOLVED: To obtain a spherical pigment based on an oxide or silicate salt carrier material having a finely dispersed metal, and to provide a method for producing the same. SOLUTION: This pigment is obtained by a spray-pyrolyzing method comprising pyrolyzing an aerosol comprising the solution of at least one kind of a noble metal compound and an oxide or silicate salt-forming precursor at a temperature exceeding the decomposition temperature of the noble metal compound and a temperature for forming at least a carrier material from the oxide or silicate salt-forming precursor and subsequently separating the produced pigment from the pyrolyzed gas. The obtained pigment consists mainly of the spherical particles based on the oxide or silicate salt carrier material and the noble metal finely dispersed on or in the particles and having an average particle diameter of

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