Process for in-situ formation of chlorides of silicon and aluminum in the preparation of titanium dioxide
    6.
    发明授权
    Process for in-situ formation of chlorides of silicon and aluminum in the preparation of titanium dioxide 有权
    在制备二氧化钛时原位形成硅和铝的氯化物的方法

    公开(公告)号:US08741257B2

    公开(公告)日:2014-06-03

    申请号:US13505463

    申请日:2010-11-09

    IPC分类号: C01G23/047

    摘要: This disclosure relates to a process for producing titanium dioxide, comprising: a) reacting a alloy comprising silicon and aluminum having a melting point of about 482° C. to about 660° C., with chlorine gas at temperatures above 190° C. to form chlorides of silicon and aluminum; b) adding titanium tetrachloride to the chlorides of silicon and aluminum of step (a); c) oxidizing the chlorides of silicon and aluminum and titanium tetrachloride of step (b); and d) forming titanium dioxide.

    摘要翻译: 本公开涉及一种生产二氧化钛的方法,包括:a)使熔点约482℃至约660℃的含硅和铝的合金与温度高于190℃的氯气反应至 形成硅和铝的氯化物; b)向步骤(a)的硅和铝的氯化物中加入四氯化钛; c)氧化步骤(b)的硅和铝和四氯化钛的氯化物; 和d)形成二氧化钛。

    TREATED INORGANIC PARTICLE
    7.
    发明申请
    TREATED INORGANIC PARTICLE 有权
    处理无机颗粒

    公开(公告)号:US20140102333A1

    公开(公告)日:2014-04-17

    申请号:US14125668

    申请日:2012-06-20

    IPC分类号: C09C1/36

    摘要: The disclosure provides a treated inorganic particle, in particular a titanium dioxide particle, having reduced photoactivity, lower acid solubility and improved anti-microbial properties comprising: an inorganic core particle, in particular a titanium dioxide particle; a first treatment of silica, wherein the silica is added in a single step; and a second treatment comprising co-precipitated zinc oxide and alumina. These particles have reduced photoactivity, lower acid solubility and improved anti-microbial properties.

    摘要翻译: 本公开提供具有降低的光活性,较低的酸溶解性和改善的抗微生物性能的经处理的无机颗粒,特别是二氧化钛颗粒,其包括:无机芯颗粒,特别是二氧化钛颗粒; 二氧化硅的第一处理,其中二氧化硅在一个步骤中加入; 以及包括共沉淀的氧化锌和氧化铝的第二处理。 这些颗粒具有降低的光活性,较低的酸溶解度和改善的抗微生物性能。

    Treated inorganic particle
    9.
    发明授权
    Treated inorganic particle 有权
    处理无机颗粒

    公开(公告)号:US09115286B2

    公开(公告)日:2015-08-25

    申请号:US14125668

    申请日:2012-06-20

    摘要: The disclosure provides a treated inorganic particle, in particular a titanium dioxide particle, having reduced photoactivity, lower acid solubility and improved anti-microbial properties comprising: an inorganic core particle, in particular a titanium dioxide particle; a first treatment of silica, wherein the silica is added in a single step; and a second treatment comprising co-precipitated zinc oxide and alumina. These particles have reduced photoactivity, lower acid solubility and improved anti-microbial properties.

    摘要翻译: 本公开提供具有降低的光活性,较低的酸溶解性和改善的抗微生物性能的经处理的无机颗粒,特别是二氧化钛颗粒,其包括:无机芯颗粒,特别是二氧化钛颗粒; 二氧化硅的第一处理,其中二氧化硅在一个步骤中加入; 以及包括共沉淀的氧化锌和氧化铝的第二处理。 这些颗粒具有降低的光活性,较低的酸溶解度和改善的抗微生物性能。

    PROCESS FOR CONTROLLING PARTICLE SIZE AND SILICA COVERAGE IN THE PREPARATION OF TITANIUM DIOXIDE
    10.
    发明申请
    PROCESS FOR CONTROLLING PARTICLE SIZE AND SILICA COVERAGE IN THE PREPARATION OF TITANIUM DIOXIDE 有权
    二氧化钛制备过程中颗粒大小和二氧化硅浓度的控制

    公开(公告)号:US20130276671A1

    公开(公告)日:2013-10-24

    申请号:US13978271

    申请日:2012-01-06

    IPC分类号: C08K3/22

    摘要: The present disclosure relates to a vapor phase process for producing a substantially anatase-free titanium dioxide pigment comprising reacting a vaporous titanium dioxide precursor and an oxygen containing gas in a reactor; and introducing a mixture of liquid silicon halide and liquid titanium dioxide precursor into the reactor at a point downstream of the addition of the vaporous titanium dioxide precursor, and the oxygen containing gas, and at a process temperature of about 1200° C. to about 1600° C. to produce titanium dioxide particles that are substantially encapsulated in silicon dioxide.

    摘要翻译: 本公开内容涉及用于生产基本上无锐钛型二氧化钛颜料的气相方法,其包括在反应器中使气态二氧化钛前体和含氧气体反应; 以及在加入气态二氧化钛前体和含氧气体的下游点,并且在约1200℃至约1600℃的过程温度下,将液体硅卤化物和液体二氧化钛前体的混合物引入反应器 以产生基本上包封在二氧化硅中的二氧化钛颗粒。