TITANIUM-ZIRCONIUM MIXED OXIDE POWDER
    21.
    发明申请
    TITANIUM-ZIRCONIUM MIXED OXIDE POWDER 审中-公开
    钛 - 氧化锆混合氧化粉

    公开(公告)号:WO2006067129A3

    公开(公告)日:2007-10-25

    申请号:PCT/EP2005056938

    申请日:2005-12-20

    Abstract: 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.

    Abstract translation: 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。

    ALUMINIUM OXIDE POWDER PRODUCED BY FLAME HYDROLYSIS AND HAVING A LARGE SURFACE AREA
    22.
    发明申请
    ALUMINIUM OXIDE POWDER PRODUCED BY FLAME HYDROLYSIS AND HAVING A LARGE SURFACE AREA 审中-公开
    火焰水解法制备的氧化铝粉末及其大面积表面

    公开(公告)号:WO2005061385A2

    公开(公告)日:2005-07-07

    申请号:PCT/EP2004013564

    申请日:2004-11-30

    Abstract: Aluminium oxide powder produced by flame hydrolysis and consisting of aggregates of primary particles, having a BET surface area of from 100 to 250 m /g, a dibutyl phthalate absorption of from 50 to 450 g/100 g of aluminium oxide powder, which powder shows only crystalline primary particles in high-resolution TEM pictures. It is prepared by vaporising aluminium chloride, transferring the vapour by means of a carrier gas to a mixing chamber and, separately therefrom, supplying hydrogen, air (primary air), which may optionally be enriched with oxygen and/or may optionally be pre-heated, to the mixing chamber, then igniting the mixture of aluminium chloride vapour, hydrogen, air in a burner and burning the flame into a reaction chamber that is separated from the surrounding air, subsequently separating the solid material from the gaseous substances and then treating the solid material with steam and optionally with air, the discharge rate of the reaction mixture from the mixing chamber into the reaction chamber being at least 10 m/s, and the lambda value being from 1 to 10 and the gamma value being from 1 to 15. It can be used as an ink-absorbing substance in ink-jet media.

    Abstract translation: 通过火焰水解制备并由初级颗粒聚集体组成的氧化铝粉末,其BET表面积为100-250平方米/克,邻苯二甲酸二丁酯吸收量为50-450克/ 100克氧化铝粉末, 该粉末在高分辨率TEM照片中仅显示结晶初级粒子。 它通过蒸发氯化铝,通过载气将蒸汽转移到混合室并与此分开地供应氢气,空气(一次空气),其可以任选地富含氧气和/或可以任选地被预处理, 加热到混合室,然后在燃烧器中点燃氯化铝蒸汽,氢气和空气的混合物,并将火焰燃烧到与周围空气分离的反应室中,随后将固体物质与气态物质分离,然后处理 具有蒸汽和任选的空气的固体材料,反应混合物从混合室进入反应室的排出速率至少为10m / s,λ值为1至10,γ值为1至10 15.它可以用作喷墨介质中的吸墨物质。

    TITANIUM DIOXIDE COATED WITH SILICON DIOXIDE
    23.
    发明申请
    TITANIUM DIOXIDE COATED WITH SILICON DIOXIDE 审中-公开
    用二氧化硅涂布的二氧化钛

    公开(公告)号:WO2004056927A3

    公开(公告)日:2004-08-26

    申请号:PCT/EP0313534

    申请日:2003-12-02

    Abstract: 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 /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 SiO2 and TiO2 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.%.

    Abstract translation: 由具有二氧化钛核心和二氧化硅涂层的颗粒组成的粉末,所述粉末具有0.5至40重量%的二氧化硅含量,5至300平方米/克的BET表面积和 它由具有二氧化硅涂层和二氧化钛核心的初级颗粒组成。 该粉末是按照下述方法生产的,其中将可汽化的硅化合物和可汽化的钛化合物相应于产品中随后所需的SiO 2和TiO 2的比例混合,在200℃或更低的温度下汽化,并通过装置 的惰性气流与氢气和空气或富氧空气一起加入到已知燃烧器的中心管(芯)中,反应混合物在燃烧器的口部点燃并与二次空气一起引入,在 然后将涂覆有二氧化硅的二氧化钛粉末与气态反应产物分离,并且如果需要的话,在潮湿的空气中从附着的氯化氢中释放,一次空气与二次空气的比率大于0.3, 核心氢与二次空气的摩尔比大于1,二氧化钛前体与二次空气的摩尔比大于0.5。 含有0.01至25重量%粉末的防晒剂。

    28.
    发明专利
    未知

    公开(公告)号:AT506324T

    公开(公告)日:2011-05-15

    申请号:AT05821745

    申请日:2005-12-20

    Abstract: Aluminum oxide powder in the form of aggregates of primary-particles, which has a BET surface area of from 10 to 90 m2/g and comprises as crystalline phases, in addition to gamma-aluminum oxide and/or theta-aluminum oxide, at least 30% of delta-aluminum oxide. It is prepared by vaporizing aluminum chloride and burning the vapor together with hydrogen and air, the ratio of primary air/secondary air being 0.01 to 2, the exit speed vB of the reaction mixture from the burner being at least 10 m/s, the lambda value being 1 to 4, the gamma value being 1 to 3 and the value of gamma*vB/lambda being greater than or equal to 55. Dispersion comprising the aluminum oxide powder. Coating composition comprising the dispersion.

    29.
    发明专利
    未知

    公开(公告)号:DE502007003594D1

    公开(公告)日:2010-06-10

    申请号:DE502007003594

    申请日:2007-05-22

    Abstract: The crystalline titanium dioxide powder has a aggregated primary particles form. The aggregated primary particles form has a Brunauer-Emmett-Teller surface area of 30-65 m 2>/g and a rutile content of 50-70%. An independent claim is also included for a method for preparing titanium dioxide powder, which involves introducing hydrogen, air or oxygen-enriched air into a mixing chamber, where a mixture of titanium tetrachloride vapour, hydrogen and primary air is subsequently ignited in a burner and the flame is burned into a reaction chamber, the solid is subsequently separated off from gaseous substances.

    СПОСІБ ОДЕРЖАННЯ ЧАСТОК ЛЕГОВАНИХ ОКСИДІВ МЕТАЛІВ

    公开(公告)号:UA90561C2

    公开(公告)日:2010-05-11

    申请号:UAA200807694

    申请日:2006-10-10

    Abstract: Узаявціописанийспосібодержаннячастоклегованихоксидівметалів, уякомулегуючийкомпонентміститьсянаповерхніу формідоменів, уякому - упершійзоніреакціїсполукуметалу, щоокислюєтьсяй/абогідролізуєтьсятає легуючоюдобавкою, разомз атомізуючимгазоматомізуютьу потікчастококсидівметаліву газі-носії, - уякомумасовийпотікчастококсидівметаліві масовийпотіклегуючоїдобавкиобранітакими, щобчасткилегованихоксидівметалівмістиливід 10 част./млн. до 10 мас. % легуючогокомпонента, уякомукількістьлегуючоїдобавки, щовводиться, розраховуютьу перерахункунавідповіднийоксид, і - уякомутемпературав першійзоніреакціїобранатакою, щовонанижчазатемпературукипіннялегуючоїдобавкиприпереважнихумовахпроведенняреакції, і - потіму другузонуреакціївводятьпотікз першоїзониреакціїй - необов'язковощонайменшетакукількістькиснюй/абопари, щобкількістькиснюй/абопарибулащонайменшедостатньоюдляповногоперетвореннялегуючоїдобавки, - уякомутемпературадорівнюєвід 300 до 2000 °С, переважно - від 500 до 1000°С, і - потімреакційнусумішохолоджуютьабоїйдаютьостудитисяй часткилегованихоксидівметаліввідокремлюютьвідгазоподібнихречовин.

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