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    Pyrogenic silicon dioxide and a dispersion thereof
    32.
    发明授权
    Pyrogenic silicon dioxide and a dispersion thereof 有权
    热解二氧化硅及其分散体

    公开(公告)号：US07722849B2

    公开(公告)日：2010-05-25

    申请号：US10530491

    申请日：2003-12-16

    申请人： Martin Moerters ,  Helmut Mangold ,  Monika Oswald ,  Kai Schumacher ,  Heinz Lach ,  Gerrit Schneider

    发明人： Martin Moerters ,  Helmut Mangold ,  Monika Oswald ,  Kai Schumacher ,  Heinz Lach ,  Gerrit Schneider

    IPC分类号： C01B33/12 ,  C01B33/14 ,  C01B33/141 ,  C01B33/142 ,  C01B33/143 ,  C01B33/18 ,  C01B33/187

    CPC分类号： C03C3/04 ,  B82Y30/00 ,  C01B33/1417 ,  C01B33/1485 ,  C01B33/183 ,  C01P2004/50 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/10 ,  C01P2006/12 ,  C01P2006/22

    摘要： Pyrogenic silicon dioxide powder with a BET surface area of 30 to 90 m2/g, a DBP index of 80 or less, a mean aggregate area of less than 25000 nm2 and a mean aggregate circumference of less than 1000 nm, wherein at least 70% of the aggregates have a circumference of less than 1300 nm. It is prepared by mixing at least one silicon compound in vapor form, a free-oxygen-containing gas and a combustible gas in a burner of known construction, igniting this gas mixture at the mouth of the burner and burning it in the flame tube of the burner, separating the solid obtained from the gas mixture and optionally purifying, wherein the oxygen content of the free-oxygen-containing gas is adjusted so that the lambda value is greater than or equal to 1, the gamma value is between 1.2 and 1.8, the throughput is between 0.1 and 0.3 kg SiO2/m3 of core gas mixture and the mean normalized rate of flow of gas in the flame tube at the level of the mouth of the burner is at least 5 m/s. The powder can be used as a filler. A dispersion containing the powder according to the invention. The powder can be used as a filler in rubber, silicone rubber and plastics. The dispersion can be used to prepare glass items.

    摘要翻译： 热解二氧化硅粉末，其BET表面积为30〜90m2 / g，DBP指数为80以下，平均聚集面积小于25000nm 2，平均聚集体周长小于1000nm，其中，至少70％ 的聚集体具有小于1300nm的圆周。 通过在已知结构的燃烧器中混合至少一种蒸汽形式的硅化合物，含游离氧的气体和可燃气体来制备，在燃烧器的口部点燃该气体混合物并将其燃烧在燃烧器的火焰管中 燃烧器，分离从气体混合物获得的固体并任选地进行纯化，其中调节含游离氧气体的氧含量使λ值大于或等于1，γ值在1.2和1.8之间 ，核心气体混合物的通量在0.1至0.3kg SiO 2 / m 3之间，并且在燃烧器口处的火焰管中气体的平均归一化流速至少为5m / s。 粉末可用作填料。 含有本发明粉末的分散体。 该粉末可用作橡胶，硅橡胶和塑料中的填料。 分散体可用于制备玻璃制品。

    Pyrogenic Silicon Dioxide and a Dispersion Thereof
    35.
    发明申请
    Pyrogenic Silicon Dioxide and a Dispersion Thereof 有权
    热解二氧化硅及其分散体

    公开(公告)号：US20080045411A1

    公开(公告)日：2008-02-21

    申请号：US10530491

    申请日：2003-12-16

    申请人： Martin Morters ,  Helmut Mangold ,  Monika Oswald ,  Kai Schumacher ,  Heinz Lach ,  Gerrit Schneider

    发明人： Martin Morters ,  Helmut Mangold ,  Monika Oswald ,  Kai Schumacher ,  Heinz Lach ,  Gerrit Schneider

    IPC分类号： C01B33/12 ,  B01J21/08 ,  C01B33/141 ,  C03C3/04 ,  B24B1/00

    CPC分类号： C03C3/04 ,  B82Y30/00 ,  C01B33/1417 ,  C01B33/1485 ,  C01B33/183 ,  C01P2004/50 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/10 ,  C01P2006/12 ,  C01P2006/22

    摘要： Pyrogenic silicon dioxde powder with a BET surface area of 30 to 90 m2/g, a DBP index of 80 or less, a mean aggregate area of less than 25000 nm2 and a mean aggregate circumference of less than 1000 nm, wherein at least 70% of the aggregates have a circumference of less than 1300 nm, It is prepared by mixing at least one silicon compound in vapour form, a free-oxygen-containing gas and a combustible gas in a burner of known construction, igniting this gas mixture at the mouth of the burner and burning it in the flame tube of the burner, separating the solid obtained from the gas mixture and optionally purifying, wherein the oxygen content of the free-oxygen-containing gas is adjusted so that the lambda value is greater than or equal to 1, the gamma value is between 1.2 and 1.8, the throughput is between 0.1 and 0.3 kg SiO2/m3 of core gas mixture and the mean normalised rate of flow of gas in the flame tube at the level of the mouth of the burner is at least 5 m/s. The powder can be used as a filler. A dispersion containing the powder according to the invention. The powder can be used as a filler in rubber, silicone rubber and plastics. The dispersion can be used to prepare glass items.

    摘要翻译： BET表面积为30〜90m 2 / g，DBP指数为80以下，平均聚集面积小于25000nm 2的热解二氧化硅粉末， 并且平均聚集体周长小于1000nm，其中至少70％的聚集体具有小于1300nm的周长。它是通过将至少一种蒸气形式的硅化合物，含游离氧的气体和 在已知结构的燃烧器中的可燃气体，在燃烧器的口部点燃该气体混合物，并将其燃烧在燃烧器的火焰管中，分离从气体混合物获得的固体并任选地进行净化，其中游离的 调节含氧气体，使得λ值大于或等于1，γ值在1.2和1.8之间，生产量在0.1至0.3kg之间，核心的SiO 2 / m 3 气体混合物，并且在燃烧器口处的火焰管中的气体的平均归一化流速为l 东5米/秒。 粉末可用作填料。 含有本发明粉末的分散体。 该粉末可用作橡胶，硅橡胶和塑料中的填料。 分散体可用于制备玻璃制品。

    Granules based on pyrogenically prepared silicon dioxide doped with aluminum oxide by means of an aerosol, method of producing same, and use thereof
    38.
    发明授权
    Granules based on pyrogenically prepared silicon dioxide doped with aluminum oxide by means of an aerosol, method of producing same, and use thereof 有权
    基于通过气溶胶掺杂氧化铝的热解制备的二氧化硅的颗粒，其制备方法及其用途

    公开(公告)号：US06752864B2

    公开(公告)日：2004-06-22

    申请号：US10141347

    申请日：2002-05-09

    申请人： Jürgen Meyer ,  Helmut Mangold ,  Peter Neugebauer

    发明人： Jürgen Meyer ,  Helmut Mangold ,  Peter Neugebauer

    IPC分类号： C04B1404

    CPC分类号： C03C1/026 ,  B01J2/04 ,  B01J12/02 ,  B01J19/26 ,  B01J21/08 ,  B01J21/12 ,  B01J35/023 ,  B01J35/1014 ,  B01J2219/00094 ,  B01J2219/00119 ,  B01J2219/00157 ,  B01J2219/00177 ,  C01B33/12 ,  C03C1/02 ,  C09K3/1409

    摘要： Granules based on pyrogenically prepared silicon dioxide doped with aluminum oxide by means of an aerosol, which granules have the characteristic data: mean particle diameter: from 10 to 150 &mgr;m BET surface area: from 25 to 100 m2/g pH value: from 3 to 6 tamped density: from 400 to 1200 g/l They are produced by dispersing in water pyrogenically prepared silicon dioxide doped with aluminum oxide by means of an aerosol, spray drying the dispersion, and optionally carrying out tempering and/or silanization. In the silanized form, the granules have the following characteristic data: mean particle diameter: from 10 to 160 &mgr;m BET surface area: from 15 to 100 m2/g pH value: from 3 to 9 tamped density: from 400 to 1200 g/l carbon content: from 0.3 to 12.0 wt. % The granules are used inter alia as a catalyst and catalyst support, in cosmetics for sun-protection formulations, in silicone rubber, in toner powders, in paints and inks, as grinding and polishing agents, as a raw material for the production of glass and ceramics.

    摘要翻译： 基于通过气溶胶掺杂氧化铝的热解法制备的二氧化硅的颗粒，其颗粒具有特征数据：它们通过用气溶胶分散在水中由热解法制备的掺有氧化铝的二氧化硅，喷雾干燥分散体， 并且可选地进行回火和/或硅烷化。 在硅烷化形式中，颗粒具有以下特征数据：颗粒特别用作催化剂和催化剂载体，用于防晒制剂的化妆品，硅橡胶，调色剂粉末，油漆和油墨中的研磨和研磨， 抛光剂，作为生产玻璃和陶瓷的原料。