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    Pyrogenically prepared silicon dioxide with a low thickening effect
    2.
    发明授权
    Pyrogenically prepared silicon dioxide with a low thickening effect 有权
    热解制备的二氧化硅具有低增稠效果

    公开(公告)号：US07871589B2

    公开(公告)日：2011-01-18

    申请号：US12124660

    申请日：2008-05-21

    申请人： Andreas Hille ,  Florian Felix Kneisel ,  Volker Hamm ,  Matthias Rochnia

    发明人： Andreas Hille ,  Florian Felix Kneisel ,  Volker Hamm ,  Matthias Rochnia

    IPC分类号： C01B33/113

    CPC分类号： C01B33/183 ,  B01J21/08 ,  B01J35/023 ,  B01J35/1014 ,  B01J35/1019 ,  B01J35/1038 ,  C01B33/14 ,  C08K3/36 ,  C09D7/61 ,  C09D7/67 ,  C09D7/68 ,  C09G1/02 ,  Y10T428/2982

    摘要： Provided is a pyrogenically prepared SiO2 powder in the form of aggregated primary particles having a statistical thickness surface area (STSA) of 10-500 m2/g, a thickening action based on the STSA of 4-8 mPas·g/m2, and a micropore volume of 0.03-0.07 cm3/g, and a process for preparing the pyrogenic SiO2 powder, which involves: introducing hydrolyzable silicon compounds, a primary gas comprising oxygen, and a primary combustion gas into a mixing chamber to produce a mixture; igniting the mixture in a burner to produce a flame, which is burned into a reaction chamber to produce the pyrogenic SiO2 powder and gaseous substances; and separating the pyrogenic SiO2 powder from the gaseous substances, wherein a ratio of the amount of primary combustion gas introduced to a stoichiometric amount of primary combustion gas required is referred to as gammaprimary and has a value of less than 1, and wherein a ratio of the amount of primary gas comprising oxygen introduced to a stoichiometric amount of primary gas comprising oxygen required is referred to as lambdaprimary and has a value of greater than 1.

    摘要翻译： 本发明提供一种具有10-500m 2 / g的统计厚度表面积（STSA），基于STSA为4-8mPa·s·g / m 2的增稠作用的凝集一次粒子形式的热解法制备的SiO 2粉末，以及 微孔体积为0.03-0.07cm 3 / g，以及制备热解SiO 2粉末的方法，其包括：将可水解的硅化合物，包含氧的一次气体和一次燃烧气体引入混合室中以产生混合物; 在燃烧器中点燃混合物以产生火焰，其被燃烧到反应室中以产生热解SiO 2粉末和气体物质; 并将所述热解SiO 2粉末与所述气态物质分离，其中将所述一次燃烧气体的一次燃烧气体的量与所述一次燃烧气体的化学计量量的比率称为原料气体，其值小于1，其中， 引入到化学计量量的包含所需氧气的主要气体中的包含氧气的初级气体的量被称为羔羊肉，并且具有大于1的值。

    Process for the production of doped metal oxide particles
    3.
    发明授权
    Process for the production of doped metal oxide particles 失效
    用于生产掺杂金属氧化物颗粒的方法

    公开(公告)号：US08535633B2

    公开(公告)日：2013-09-17

    申请号：US12091767

    申请日：2006-10-10

    申请人： Kai Schumacher ,  Rainer Golchert ,  Helmut Roth ,  Harald Alff ,  Matthias Rochnia

    发明人： Kai Schumacher ,  Rainer Golchert ,  Helmut Roth ,  Harald Alff ,  Matthias Rochnia

    IPC分类号： C01B13/00

    CPC分类号： C01B13/145 ,  C01G23/04 ,  C01P2002/52 ,  C01P2006/12 ,  C09C1/0081 ,  C09C1/3045 ,  C09C3/06 ,  C23C8/10

    摘要： Process for the production of doped metal oxide particles, wherein the doping component is present on the surface in the form of domains, wherein in a first reaction zone, an oxidizable and/or —hydrolysable metal compound as dopant together with an atomization gas is atomized into a flow of metal oxide particles in a carrier gas, wherein the mass flow of the metal oxide particles und —the mass flow of the dopant are selected such that the doped metal oxide particles contain 10 ppm to 10 wt. % of the doping component, where the quantity of dopant to be introduced is calculated as the corresponding oxide, and wherein the temperature in the first reaction zone is —selected such that it is below the boiling temperature of the dopant under the prevailing reaction conditions, and then, in a second reaction zone, the flow from the first —reaction zone and optionally at least as much oxygen and/or steam are —introduced that the quantity of oxygen and/or steam at least suffices completely to convert the dopant, wherein the temperature is from 300 to 2000° C., —preferably 500 to 1000° C., and the reaction mixture is then cooled or allowed to cool and the doped metal oxide particles are separated from the gaseous substances.

    摘要翻译： 用于生产掺杂金属氧化物颗粒的方法，其中掺杂组分以畴的形式存在于表面上，其中在第一反应区中，作为掺杂剂的可氧化和/或可水解的金属化合物与雾化气体一起雾化 进入载气中的金属氧化物颗粒的流动，其中选择金属氧化物颗粒的质量流与掺杂剂的质量流量，使得掺杂的金属氧化物颗粒含有10ppm至10wt。 掺杂成分的％，其中待引入的掺杂剂的量被计算为相应的氧化物，并且其中选择第一反应区中的温度使得其在主要反应条件下低于掺杂剂的沸点温度， 然后，在第二反应区中，引入来自第一反应区和任选地至少相同氧和/或蒸汽的流动，使得氧和/或蒸汽的量至少足以完全转化掺杂剂，其中 温度为300〜2000℃，优选为500〜1000℃，然后将反应混合物冷却或冷却，并将掺杂的金属氧化物颗粒与气态物质分离。

    PYROGENICALLY PREPARED SILICON DIOXIDE WITH A LOW THICKENING EFFECT
    4.
    发明申请
    PYROGENICALLY PREPARED SILICON DIOXIDE WITH A LOW THICKENING EFFECT 有权
    具有低倍增效应的有机硅二氧化硅的制备

    公开(公告)号：US20080290317A1

    公开(公告)日：2008-11-27

    申请号：US12124660

    申请日：2008-05-21

    申请人： Andreas HILLE ,  Florian Felix Kneisel ,  Volker Hamm ,  Matthias Rochnia

    发明人： Andreas HILLE ,  Florian Felix Kneisel ,  Volker Hamm ,  Matthias Rochnia

    IPC分类号： C01B33/12 ,  B32B5/16 ,  C08K3/36 ,  C01B33/141 ,  C09D11/02 ,  C09D1/00 ,  C09K13/00

    CPC分类号： C01B33/183 ,  B01J21/08 ,  B01J35/023 ,  B01J35/1014 ,  B01J35/1019 ,  B01J35/1038 ,  C01B33/14 ,  C08K3/36 ,  C09D7/61 ,  C09D7/67 ,  C09D7/68 ,  C09G1/02 ,  Y10T428/2982

    摘要： Provided is a pyrogenically prepared SiO2 powder in the form of aggregated primary particles having a statistical thickness surface area (STSA) of 10-500 m2/g, a thickening action based on the STSA of 4-8 mPas·g/m2, and a micropore volume of 0.03-0.07 cm3/g, and a process for preparing the pyrogenic SiO2 powder, which involves: introducing hydrolyzable silicon compounds, a primary gas comprising oxygen, and a primary combustion gas into a mixing chamber to produce a mixture; igniting the mixture in a burner to produce a flame, which is burned into a reaction chamber to produce the pyrogenic SiO2 powder and gaseous substances; and separating the pyrogenic SiO2 powder from the gaseous substances, wherein a ratio of the amount of primary combustion gas introduced to a stoichiometric amount of primary combustion gas required is referred to as gammaprimary and has a value of less than 1, and wherein a ratio of the amount of primary gas comprising oxygen introduced to a stoichiometric amount of primary gas comprising oxygen required is referred to as lambdaprimary and has a value of greater than 1.

    摘要翻译： 本发明提供一种热解法制备的具有10-500m 2 / g的统计厚度表面积（STSA）的聚集的一次颗粒形式的二氧化硅粉末，基于STSA的增稠作用为4-8mPas.g / m2，以及 微孔体积为0.03-0.07cm 3 / g，以及制备热解SiO 2粉末的方法，其包括：将可水解的硅化合物，包含氧的一次气体和一次燃烧气体引入混合室中以产生混合物; 在燃烧器中点燃混合物以产生火焰，其被燃烧到反应室中以产生热解SiO 2粉末和气体物质; 并将所述热解SiO 2粉末与所述气态物质分离，其中将所述一次燃烧气体的一次燃烧气体的量与所述一次燃烧气体的化学计量量的比率称为原料气体，其值小于1，其中， 引入到化学计量量的包含所需氧气的主要气体中的包含氧气的初级气体的量被称为羔羊肉，并且具有大于1的值。

    Stabilised Aluminium Zirconium Mixed Oxide Powder
    8.
    发明申请
    Stabilised Aluminium Zirconium Mixed Oxide Powder 失效
    稳定铝锆混合氧化物粉末

    公开(公告)号：US20080217591A1

    公开(公告)日：2008-09-11

    申请号：US11995183

    申请日：2006-07-14

    申请人： Stipan Katusic ,  Jurgen Meyer ,  Horst Miess ,  Monika Oswald ,  Matthias Rochnia

    发明人： Stipan Katusic ,  Jurgen Meyer ,  Horst Miess ,  Monika Oswald ,  Matthias Rochnia

    IPC分类号： C09K21/02

    CPC分类号： C01G25/006 ,  C01G25/02 ,  C01P2002/10 ,  C01P2002/50 ,  C01P2004/04 ,  C01P2004/62 ,  C01P2004/80 ,  C01P2006/12 ,  C01P2006/80 ,  C04B35/4885 ,  C04B35/6264 ,  C04B35/62665 ,  C04B2235/3225 ,  C04B2235/441 ,  C04B2235/449 ,  C04B2235/5409 ,  C04B2235/5445 ,  C04B2235/721 ,  C04B2235/724 ,  C04B2235/765

    摘要： Mixed oxide powder consisting of particles with the components zirconium dioxide, aluminium oxide and at least a third component selected from the group including yttrium oxide, magnesium oxide or calcium oxide, wherein mixed oxide powder has an aluminium oxide content 0.01 to 10 wt. % and is homogeneously distributed in the mixed oxide particles, the content of aluminium oxide, zirconium dioxide and yttrium oxide is at least 99.5 wt. %, based on the total quantity of the powder, and the BET surface area is 20 to 80 m2/g. It is obtained by atomising a solution containing at least one starting compound for each of aluminium oxide, zirconium dioxide and the third component, allowing the atomised solution to react with oxygen in a reaction chamber at a reaction temperature 700 to 15000° C., cooling the hot gases and the solid products and then separating the solid product from the gases. It can be used as a dental material.

    摘要翻译： 由具有二氧化锆，氧化铝和至少三种成分的颗粒组成的混合氧化物粉末，所述组合物包括氧化钇，氧化镁或氧化钙，其中混合氧化物粉末的氧化铝含量为0.01至10wt。 ％，均匀分布在混合氧化物颗粒中，氧化铝，二氧化锆和氧化钇的含量至少为99.5重量％。 ％，基于粉末的总量，BET表面积为20〜80m 2 / g。 通过将含有至少一种起始化合物的溶液雾化为氧化铝，二氧化锆和第三成分，使反应室中的雾化溶液与氧反应，反应温度为700〜15000℃，冷却 热气体和固体产物，然后将固体产物与气体分离。 它可以用作牙科材料。