SILICA COMPOSITE PARTICLES AND METHOD OF PREPARING THE SAME
    4.
    发明申请
    SILICA COMPOSITE PARTICLES AND METHOD OF PREPARING THE SAME 审中-公开
    二氧化硅复合颗粒及其制备方法

    公开(公告)号:US20150075083A1

    公开(公告)日:2015-03-19

    申请号:US14555957

    申请日:2014-11-28

    IPC分类号: C01B33/18 C09K3/14 C07F7/28

    摘要: A method of preparing silica composite particles includes preparing an alkali catalyst solution containing an alkali catalyst at a concentration of from 0.6 mol/L to 0.85 mol/L, in a solvent containing alcohol; and supplying, into the alkali catalyst solution, (i) a mixed solution of tetraalkoxysilane and an organic titanium compound in which an organic group is coupled to a titanium atom through oxygen, and (ii) an alkali catalyst. The mixed solution is supplied at a supply amount of from 0.001 mol/(mol·min) to 0.01 mol/(mol·min) relative to the alcohol, and the alkali catalyst is supplied at a supply amount of from 0.1 mol to 0.4 mol, relative to 1 mol of a total supply amount of the tetraalkoxysilane and the organic titanium compound supplied per one minute.

    摘要翻译: 制备二氧化硅复合颗粒的方法包括在含醇的溶剂中制备含有浓度为0.6mol / L至0.85mol / L的碱催化剂的碱催化剂溶液; 并向碱催化剂溶液中提供(i)四烷氧基硅烷和有机钛化合物的混合溶液,其中有机基团通过氧与钛原子偶合,和(ii)碱催化剂。 混合溶液相对于醇以0.001mol /(mol·min)〜0.01mol /(mol·min)的供给量供给,以0.1mol〜0.4mol的供给量供给碱催化剂 相对于每1分钟供给的四烷氧基硅烷和有机钛化合物的总供给量的1摩尔。

    Process for the production of doped metal oxide particles
    6.
    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

    IPC分类号: C01B13/00

    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。

    SULFUR CONTAINING SILICA PARTICLE
    9.
    发明申请
    SULFUR CONTAINING SILICA PARTICLE 有权
    含硫硅胶颗粒

    公开(公告)号:US20120252663A1

    公开(公告)日:2012-10-04

    申请号:US13242599

    申请日:2011-09-23

    IPC分类号: B01J20/10 B82Y30/00

    摘要: A silica-containing composition is disclosed. The composition comprises a compound having the following formula: (SiO2)x(OH)yMzSaF. M comprises at least one metal or metalloid cation. S is a sulfur-based species. F optionally exists and F is at least one of the following: a functionalized organosilane, a sulfur-containing organosilane, an amine-containing organosilane, and an alkyl-containing organosilane at a surface area coverage of about 0.01 to about 100%. The molar ratio of y/x is equal to about 0.01 to about 0.5, the molar ratio of x/z is equal to about 0.5 to about 300 or from about 0.5 to about 100, and the molar ratio of a/z is about 0.5 to about 5.

    摘要翻译: 公开了含二氧化硅的组合物。 组合物包含具有下式的化合物:(SiO 2)x(OH)yMzSaF。 M包含至少一种金属或准金属阳离子。 S是硫类物质。 F任选存在,F是以下至少一种:官能化的有机硅烷,含硫有机硅烷,含胺的有机硅烷和含烷基的有机硅烷,其表面积为约0.01至约100%。 y / x的摩尔比等于约0.01至约0.5,x / z的摩尔比等于约0.5至约300或约0.5至约100,并且a / z的摩尔比为约0.5 至约5。