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    • 23. 发明申请
    • TITANIUM-ZIRCONIUM MIXED OXIDE POWDER
    • 钛 - 氧化锆混合氧化粉
    • WO2006067129A2
    • 2006-06-29
    • PCT/EP2005/056938
    • 2005-12-20
    • DEGUSSA AGSCHUMACHER, KaiKLOTZ, OswinDIENER, Uwe
    • SCHUMACHER, KaiKLOTZ, OswinDIENER, Uwe
    • C01G25/00B01J21/06B01J32/00B01J37/086B01J37/349C01G23/003C01P2006/12C01P2006/80
    • Titanium-zirconium mixed oxide powder in the form of aggregated primary particles, which powder has a content of titanium dioxide of from 40 to 97 wt . % and a content of zirconium dioxide of from 3 to 60 wt.%, wherein the sum of the contents of titanium dioxide and zirconium dioxide is at least 99.7 wt.% and wherein the contents are in each case based on the total amount of powder, and which exhibits reflections of titanium dioxide modifications and does not exhibit reflections of monoclinic, tetragonal and cubic zirconium dioxide in X-ray diffraction analysis. It is prepared by transporting into a mixing chamber a starting compound, in vapour form, for the first mixed oxide component by means of primary air and a starting compound, in vapour form, for the second mixed oxide component by means of an inert gas, mixing the mixture with hydrogen in a mixing chamber and burning it into a reaction chamber. It can be used as a catalyst support.
    • 钛 - 锆混合氧化物粉末为聚集的一次颗粒形式,该粉末的二氧化钛含量为40-97wt。 %和二氧化锆的含量为3至60重量%,其中二氧化钛和二氧化锆的含量之和为至少99.7重量%,其中每种情况下的含量基于粉末的总量 并且其表现出二氧化钛修饰的反射,并且在X射线衍射分析中不显示单斜晶,四方晶和立方二氧化锆的反射。 通过惰性气体将第一混合氧化物组分的蒸气形式的第一混合氧化物组分的蒸气形式的原料化合物输送到混合室中, 将混合物与氢气混合在混合室中并将其燃烧成反应室。 它可以用作催化剂载体。
    • 24. 发明申请
    • TITANIUM DIOXIDE COATED WITH SILICON DIOXIDE
    • 二氧化钛二氧化硅
    • WO2004056927A2
    • 2004-07-08
    • PCT/EP2003/013534
    • 2003-12-02
    • DEGUSSA AGSCHUMACHER, KaiBATZ-SOHN, ChristophHASENZAHL, Steffen
    • SCHUMACHER, KaiBATZ-SOHN, ChristophHASENZAHL, Steffen
    • C09C1/00
    • C09C1/3661C01G23/07C01P2004/03C01P2004/84C01P2006/12C01P2006/90Y10T428/2993
    • Powder consisting of particles with a core of titanium dioxide and a coating of silicon dioxide, which powder has a content of silicon dioxide of between 0.5 and 40 wt.%, a BET surface of between 5 and 300 m 2 /g, and which consists of primary particles that have a coating of silicon dioxide and a core of titanium dioxide. The powder is produced according to a process in which a vaporisable silicon compound and a vaporisable titanium compound are mixed corresponding to the subsequently desired ratio of SiO 2 and TiO 2 in the product, are vaporised at temperatures of 200°C or less, and conveyed by means of an inert gas stream together with hydrogen and air or with oxygen-enriched air to the central pipe (core) of a known burner, the reaction mixture is ignited at the mouth of the burner and introduced together with secondary air, is combusted in a cooled flame pipe, following which the titanium dioxide powder coated with silicon dioxide is separated from the gaseous reaction products and if necessary is freed in moist air from adhering hydrogen chloride, the ratio of primary air to secondary air being greater than 0.3, the ratio of core hydrogen to secondary air being greater than 1, and the ratio of titanium dioxide precursor to secondary air being greater than 0.5. Sunscreen agent containing the powder in an amount of between 0.01 and 25 wt.%.
    • 由具有二氧化钛核心和二氧化硅涂层的颗粒组成的粉末,该粉末的二氧化硅含量为0.5-40重量%,BET表面积为5-300平方米/克,和 其由具有二氧化硅涂层和二氧化钛芯的初级粒子组成。 该粉末根据其中可蒸发的硅化合物和可蒸发的钛化合物相应于产物中随后所需的SiO 2和TiO 2的比例混合的方法制备,在200℃或更低的温度下蒸发,并通过手段 惰性气体流与氢气和空气或富氧空气一起连接到已知燃烧器的中心管(核心),反应混合物在燃烧器口处被点燃并与二次空气一起被引入到燃烧器 冷却的火焰管,随后将二氧化硅涂覆的二氧化钛粉末与气态反应产物分离,如果需要,在潮湿的空气中从粘附的氯化氢中除去,一次空气与二次空气的比例大于0.3, 核心氢气对二次空气大于1,二氧化钛前体与二次空气的比例大于0.5。 含有0.01至25重量%的粉末的防晒剂。