PROCESS FOR THE PRODUCTION OF FUMED SILICA
    7.
    发明申请
    PROCESS FOR THE PRODUCTION OF FUMED SILICA 有权
    生产二氧化硅的方法

    公开(公告)号:US20070253884A1

    公开(公告)日:2007-11-01

    申请号:US11740134

    申请日:2007-04-25

    IPC分类号: C01B33/12

    CPC分类号: C01B33/183

    摘要: The invention provides a process for the production of fumed silica. The process comprises providing a silicon halide feedstock comprising about 80% to 100% methyltrichlorosilane, combining the silicon halide feedstock with hydrogen gas and oxygen gas to form a reactant mixture, discharging the reactant mixture out of a burner, and combusting the hydrogen gas and the oxygen gas of the reactant mixture so as to hydrolyze the silicon halide feedstock to produce fumed silica. Hydrogen (H2) is present in a mole fraction of about 0.11 or less based on the reactant mixture, and/or the velocity of the reactant mixture upon exiting the burner is about 25 m/s or more.

    摘要翻译: 本发明提供一种生产热解二氧化硅的方法。 该方法包括提供包含约80%至100%甲基三氯硅烷的卤化硅原料,将卤化硅原料与氢气和氧气组合以形成反应物混合物,将反应物混合物排出燃烧器,并将氢气和 氧化反应混合物的氧气,以便将卤化硅原料水解以产生热解二氧化硅。 氢(H 2 H 2)以基于反应物混合物的约0.11或更低的摩尔分数存在,和/或离开燃烧器时反应物混合物的速度为约25m / s或更高 。