Stabilised aluminium zirconium mixed oxide powder
    1.
    发明授权
    Stabilised aluminium zirconium mixed oxide powder 失效
    稳定的铝锆混合氧化物粉末

    公开(公告)号:US07731869B2

    公开(公告)日:2010-06-08

    申请号:US11995183

    申请日:2006-07-14

    IPC分类号: H01B1/08

    摘要: Mixed oxide powder consisting of particles with the components zirconium dioxide, aluminium oxide and at least a third component selected from the group including yttrium oxide, magnesium oxide or calcium oxide, wherein mixed oxide powder has an aluminium oxide content 0.01 to 10 wt. % and is homogeneously distributed in the mixed oxide particles, the content of aluminium oxide, zirconium dioxide and yttrium oxide is at least 99.5 wt. %, based on the total quantity of the powder, and the BET surface area is 20 to 80 m2/g. It is obtained by atomising a solution containing at least one starting compound for each of aluminium oxide, zirconium dioxide and the third component, allowing the atomised solution to react with oxygen in a reaction chamber at a reaction temperature 700 to 15000° C., cooling the hot gases and the solid products and then separating the solid product from the gases. It can be used as a dental material.

    摘要翻译: 由具有二氧化锆,氧化铝和至少三种成分的颗粒组成的混合氧化物粉末,所述组合物包括氧化钇,氧化镁或氧化钙,其中混合氧化物粉末的氧化铝含量为0.01至10wt。 %,均匀分布在混合氧化物颗粒中,氧化铝,二氧化锆和氧化钇的含量至少为99.5重量%。 %,基于粉末的总量,BET表面积为20〜80m 2 / g。 通过将含有至少一种起始化合物的溶液雾化为氧化铝,二氧化锆和第三成分,使反应室中的雾化溶液与氧反应,反应温度为700〜15000℃,冷却 热气体和固体产物,然后将固体产物与气体分离。 它可以用作牙科材料。

    Stabilised Aluminium Zirconium Mixed Oxide Powder
    2.
    发明申请
    Stabilised Aluminium Zirconium Mixed Oxide Powder 失效
    稳定铝锆混合氧化物粉末

    公开(公告)号:US20080217591A1

    公开(公告)日:2008-09-11

    申请号:US11995183

    申请日:2006-07-14

    IPC分类号: C09K21/02

    摘要: Mixed oxide powder consisting of particles with the components zirconium dioxide, aluminium oxide and at least a third component selected from the group including yttrium oxide, magnesium oxide or calcium oxide, wherein mixed oxide powder has an aluminium oxide content 0.01 to 10 wt. % and is homogeneously distributed in the mixed oxide particles, the content of aluminium oxide, zirconium dioxide and yttrium oxide is at least 99.5 wt. %, based on the total quantity of the powder, and the BET surface area is 20 to 80 m2/g. It is obtained by atomising a solution containing at least one starting compound for each of aluminium oxide, zirconium dioxide and the third component, allowing the atomised solution to react with oxygen in a reaction chamber at a reaction temperature 700 to 15000° C., cooling the hot gases and the solid products and then separating the solid product from the gases. It can be used as a dental material.

    摘要翻译: 由具有二氧化锆,氧化铝和至少三种成分的颗粒组成的混合氧化物粉末,所述组合物包括氧化钇,氧化镁或氧化钙,其中混合氧化物粉末的氧化铝含量为0.01至10wt。 %,均匀分布在混合氧化物颗粒中,氧化铝,二氧化锆和氧化钇的含量至少为99.5重量%。 %,基于粉末的总量,BET表面积为20〜80m 2 / g。 通过将含有至少一种起始化合物的溶液雾化为氧化铝,二氧化锆和第三成分,使反应室中的雾化溶液与氧反应,反应温度为700〜15000℃,冷却 热气体和固体产物,然后将固体产物与气体分离。 它可以用作牙科材料。

    PROCESS FOR THE PRODUCTION OF ZINC OXIDE POWDER
    8.
    发明申请
    PROCESS FOR THE PRODUCTION OF ZINC OXIDE POWDER 审中-公开
    氧化锌粉的生产工艺

    公开(公告)号:US20070172415A1

    公开(公告)日:2007-07-26

    申请号:US11612112

    申请日:2006-12-18

    IPC分类号: C01G9/02

    摘要: Zinc oxide powder is prepared by a process having the following steps a) generating of a zinc vapor-containing stream in a vaporization zone; b) oxidizing the zinc vapor by reaction with an oxygen-containing gas thereby forming zinc oxide powder in an oxidation zone; and c) cooling of the reaction mixture with water or an inert gas, and separation of the zinc oxide powder in a cooling/isolation zone, wherein aa) in the vaporization zone, a gas stream of an inert gas and a fuel gas is passed through a zinc melt which has a temperature of 450 to

    摘要翻译: 通过具有以下步骤的方法制备氧化锌粉末:a)在汽化区产生含有含锌蒸气的料流; b)通过与含氧气体反应氧化锌蒸气,从而在氧化区形成氧化锌粉末; 和c)用水或惰性气体冷却反应混合物,并且在蒸发区中的aa),惰性气体和燃料气体的气流中的氧化锌粉末在冷却/隔离区中分离, 通过温度为450〜900℃的锌熔体,由此形成锌蒸汽,燃料气体的含量为1〜50体积%。 %,基于惰性气体和燃料气体的总和,氧化区中锌蒸气与燃料气体的摩尔商为0.01〜50,bb)为含有含氧气体和蒸汽的第二气流 加入到锌蒸汽,燃料气体和惰性气体的气流中,其量使得氧化区中的温度为500至1100℃,其中氧含量至少足以将所有燃料气体从 蒸发区和锌蒸汽,并且蒸汽通过燃料气体与引入氧化区的含氧气体的反应而产生

    YTTRIUM-ZIRCONIUM MIXED OXIDE POWDER
    9.
    发明申请
    YTTRIUM-ZIRCONIUM MIXED OXIDE POWDER 审中-公开
    YTTRIUM-ZIRCONIUM混合氧化物粉末

    公开(公告)号:US20090092531A1

    公开(公告)日:2009-04-09

    申请号:US11572742

    申请日:2005-07-19

    IPC分类号: C01F17/00

    摘要: Nano-scale yttrium-zirconium mixed oxide powder in the form of aggregated primary particles having the following physico-chemical parameters:—BET surface area: from 40 to 100 m2/g,—da=from 3 to 30 nm, d,=mean, number-related primary particle diameter,—yttrium content, calculated as yttrium oxide Y2O3, determined by chemical analysis, from 5 to 15 wt. %, based on the mixed oxide powder,—yttrium contents of individual primary particles, calculated as yttrium oxide Y2O3 determined by TEM EDX, corresponding to the content in the powder+−10%,—content at room temperature, determined by X-ray diffraction and based on the mixed oxide powder—monoclinic zirconium oxide from

    摘要翻译: 具有以下物理化学参数的聚集一次粒子形式的纳米级钇 - 锆混合氧化物粉末:-BET表面积:40-100m 2 / g,-da = 3-30nm,d =平均值 通过化学分析确定的数量相关的一次粒径,钇含量,以氧化钇Y 2 O 3计算,为5〜15wt。 %,基于混合氧化物粉末,通过TEM EDX测定的单个一次粒子的钇含量以与氧化镁Y 2 O 3相当的方式计算,对应于室温下的含量在-10℃〜室温下,通过X射线衍射测定 并且基于<1至10重量%的混合氧化物粉末 - 单斜晶氧化锆。 %四氯化锆,10至95wt。 % - 在1300℃下加热2小时后的单斜晶氧化锆的含量小于1重量%。 %, - 碳含量小于0.2wt。 %。 通过雾化含有有机锆氧化物前体和无机氧化钇前体的有机溶剂的溶液,在燃烧气体/空气火焰中燃烧,分离气体和固体产物来制备。 它可以用作陶瓷基材。