Production method of titanium oxide sol
    5.
    发明授权
    Production method of titanium oxide sol 有权
    氧化钛溶胶的制备方法

    公开(公告)号:US08802159B2

    公开(公告)日:2014-08-12

    申请号:US13128496

    申请日:2009-10-27

    摘要: There is provided a method for efficiently producing an anatase-type titanium oxide sol in an extremely advantageous dispersion state. The method comprises mixing a titanium alkoxide, an organic acid, and a quaternary ammonium hydroxide with water in a molar ratio of the organic acid of 0.4 to 4.0 relative to 1 mol of a titanium atom of the titanium alkoxide and in a molar ratio of the quaternary ammonium hydroxide of 0.8 to 1.9 relative to 1 mol of the organic acid to prepare an aqueous mixed solution having a concentration in terms of TiO2 of 0.5 to 10% by mass; heating the aqueous mixed solution to 50 to 100° C. to remove an alcohol; and subjecting the resulting titanium-containing aqueous solution to a hydrothermal treatment at 110 to 170° C.

    摘要翻译: 提供了一种在非常有利的分散状态下有效地生产锐钛矿型氧化钛溶胶的方法。 该方法包括使钛醇盐,有机酸和季铵氢氧化物与水相比,相对于1摩尔钛醇钛的钛原子,有机酸的摩尔比为0.4-4.0摩尔比, 相对于1摩尔有机酸为0.8〜1.9的季铵氢氧化物,以制备TiO 2浓度为0.5〜10质量%的水性混合溶液; 将含水混合溶液加热至50至100℃以除去醇; 并将所得含钛水溶液在110〜170℃进行水热处理。

    METHOD FOR PRODUCTION OF STABLE CERIUM OXIDE ORGANIC COLLOIDS
    9.
    发明申请
    METHOD FOR PRODUCTION OF STABLE CERIUM OXIDE ORGANIC COLLOIDS 有权
    生产稳定的氧化硅有机胶体的方法

    公开(公告)号:US20130197107A1

    公开(公告)日:2013-08-01

    申请号:US13753992

    申请日:2013-01-30

    IPC分类号: B01J13/00

    CPC分类号: B01J13/0047 B01J13/003

    摘要: An improved process for producing substantially non-polar doped or un-doped cerium oxide nanoparticle dispersions is disclosed. The cerium-containing oxide nanoparticles of an aqueous colloid are transferred to a substantially non-polar liquid comprising one or more amphiphilic materials, one or more low-polarity solvents, and one or more glycol ether promoter materials. The transfer is achieved by mixing the aqueous and substantially non-polar materials, forming an emulsion, followed by a phase separation into a remnant polar solution phase and a substantially non-polar organic colloid phase. The organic colloid phase is then collected. The promoter functions to speed the transfer of nanoparticles to the low-polarity phase. The promoter accelerates the phase separation, and also provides improved colloidal stability of the final substantially non-polar colloidal dispersion. Importantly, the glycol ether promoter reduces the temperature necessary to achieve the phase separation, while providing high extraction yield of nanoparticles into the low-polarity organic phase.

    摘要翻译: 公开了用于生产基本上非极性掺杂或未掺杂的氧化铈纳米颗粒分散体的改进方法。 将含水胶体的含铈氧化物纳米颗粒转移到包含一种或多种两亲物质,一种或多种低极性溶剂和一种或多种二醇醚促进剂材料的基本上非极性的液体中。 通过混合水性和基本上非极性材料,形成乳液,然后将相分离成剩余的极性溶液相和基本上非极性的有机胶体相来实现转移。 然后收集有机胶体相。 启动子用于加速纳米颗粒转移到低极性相。 促进剂加速相分离,并且还提供最终的基本上非极性的胶体分散体的改进的胶体稳定性。 重要的是,二醇醚促进剂降低了实现相分离所需的温度,同时提供了纳米颗粒到低极性有机相的高提取产率。