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    METHOD FOR PREPARING RARE-EARTH-DOPED FLUORIDE NANOPARTICLES OF CONTROLLED SIZE
    43.
    发明申请
    METHOD FOR PREPARING RARE-EARTH-DOPED FLUORIDE NANOPARTICLES OF CONTROLLED SIZE 审中-公开
    用于制备控制尺寸的稀土氟化物纳米颗粒的方法

    公开(公告)号：US20100019200A1

    公开(公告)日：2010-01-28

    申请号：US12534276

    申请日：2009-08-03

    申请人： CHANGZAI CHI ,  DANIEL ALBERT GREEN ,  KURT RICHARD MIKESKA ,  PAUL GREGORY BEKIARIAN

    发明人： CHANGZAI CHI ,  DANIEL ALBERT GREEN ,  KURT RICHARD MIKESKA ,  PAUL GREGORY BEKIARIAN

    IPC分类号： C09K11/61

    CPC分类号： C01D3/02 ,  C01B7/191 ,  C09K11/7705 ,  C09K11/7731

    摘要： A method wherein an aqueous solution of a fluoride, an aqueous solution of a Group 2 or Group 3 metal salt, and an aqueous solution of a rare-earth metal dopant are combined in a plurality of continuous feed streams to form a series of precipitates of a rare-earth doped Group 2 or Group 3 metal fluoride, and wherein the member of the series differ by the concentration of the associated rare-earth dopant cation in the feed stream, and wherein the series so prepared defines the threshold concentration range above which operation of the process results in a minimization of the particle size variability caused by small perturbations in the concentration of the rare-earth dopant.

    摘要翻译： 一种方法，其中将氟化物水溶液，第2族或第3族金属盐水溶液和稀土金属掺杂剂的水溶液合并在多个连续进料流中以形成一系列沉淀物 稀土掺杂的第2族或第3族金属氟化物，并且其中该系列的成员与进料流中相关的稀土掺杂剂阳离子的浓度不同，并且其中如此制备的系列定义了其上的阈值浓度范围 该过程的操作导致由稀土掺杂剂的浓度的小扰动引起的粒度变化的最小化。

    NOVEL RARE-EARTH DOPED FLUORIDES AND PROCESS FOR PREPARING
    44.
    发明申请
    NOVEL RARE-EARTH DOPED FLUORIDES AND PROCESS FOR PREPARING 有权
    新型稀土氟化物及其制备方法

    公开(公告)号：US20080025896A1

    公开(公告)日：2008-01-31

    申请号：US11749771

    申请日：2007-05-17

    申请人： CHANGZAI CHI ,  MICHAEL KARL CRAWFORD ,  KURT RICHARD MIKESKA

    发明人： CHANGZAI CHI ,  MICHAEL KARL CRAWFORD ,  KURT RICHARD MIKESKA

    IPC分类号： C01F17/00

    CPC分类号： C01F11/22 ,  C01F17/0012 ,  C01P2002/54 ,  C01P2006/90 ,  C09K11/7733

    摘要： The invention is directed a composition represented by the chemical formula EuxA1−xF2+x−2yOy wherein A is alkaline earth, 0.002≦x≦0.20, and 0≦y≦x; the composition exhibiting a luminescence spectrum characterized by peaks at 592±2 nm and 627±2 nm, wherein the ratio of the peak intensity at 592±2 nm to that at 627±2 nm is at least 5% larger than the corresponding peak intensity ratio at the same wavelengths of a first corresponding reference composition with the same value of x that has not been exposed to a temperature above 100° C., and wherein said ratio of the peak intensity at 592±2 nm to that at 627±2 nm is at least 5% smaller than the corresponding peak intensity ratio at the same wavelengths of a second corresponding reference composition with the same value of x that has been subject to heating to 900° C. for 6 hours.

    摘要翻译： 本发明涉及一种由化学式Ⅳ表示的组合物1-x F 2 + x-2y O y <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 其中A为碱土金属，0.002 <= x <= 0.20，0 <= y <= x; 该组合物表现出以592±2nm和627±2nm的峰为特征的发光光谱，其中592±2nm处的峰强度与627±2nm处的峰强度的比例比相应的峰强度至少大5％ 在相同波长的相同波长处的相同波长的第一对应参考组合物具有未暴露于高于100℃的温度的相同的x值，并且其中所述592±2nm处的峰强度与627±2nm处的峰强度比 nm相对于第二相对应参考组合物的相同波长的相应峰强度比例至少比具有与900℃加热6小时相同的x值。

    Refractory compositions for use in fluid bed chlorinators
    45.
    发明授权
    Refractory compositions for use in fluid bed chlorinators 失效
    用于流化床氯化钠的耐火组合物

    公开(公告)号：US5807798A

    公开(公告)日：1998-09-15

    申请号：US962851

    申请日：1997-11-03

    申请人： John Davis Bolt ,  Ana Estela Diaz ,  Kurt Richard Mikeska

    发明人： John Davis Bolt ,  Ana Estela Diaz ,  Kurt Richard Mikeska

    IPC分类号： C04B35/66 ,  B01J8/24 ,  B01J8/34 ,  B01J19/00 ,  B01J19/02 ,  C04B35/63 ,  C04B35/657 ,  C22B9/02 ,  F27D1/00 ,  C04B35/10

    CPC分类号： C04B35/6316 ,  B01J19/02 ,  B01J8/1872 ,  B01J2219/0263

    摘要： This invention provides new refractory binder compositions comprising silica and titania which can be used to make ceramic bodies, particularly bricks. The refractory binder compositions comprise about 70 to about 92 wt. % silica (SiO.sub.2) and about 8 to about 30% titania (TiO.sub.2). The refractory binder compositions may further comprise alumina and a metal oxide selected from the group consisting of calcium oxide, strontium oxide, and sodium oxide, and mixtures thereof. The refractory ceramic bodies can be used in hot corrosive/erosive environments such as in fluid bed chlorinators in the manufacture of titanium dioxide.

    摘要翻译： 本发明提供了可用于制造陶瓷体，特别是砖的新型耐火粘合剂组合物，其包含二氧化硅和二氧化钛。 耐火粘合剂组合物包含约70-约92wt。 ％二氧化硅（SiO 2）和约8至约30％的二氧化钛（TiO 2）。 难熔粘合剂组合物还可包含氧化铝和选自氧化钙，氧化锶和氧化钠的金属氧化物及其混合物。 耐火陶瓷体可用于热腐蚀/腐蚀性环境中，例如在二氧化钛生产中的流化床二氧化氯中。