Titanium dioxide having a variable sintering stability
    71.
    发明授权
    Titanium dioxide having a variable sintering stability 有权
    具有可变烧结稳定性的二氧化钛

    公开(公告)号:US08071070B2

    公开(公告)日:2011-12-06

    申请号:US12786195

    申请日:2010-05-24

    IPC分类号: C01G23/07 C01G23/047

    摘要: Provided is a crystalline TiO2 powder in the form of aggregated primary particles having a variable sintering stability at a BET surface area of 70-100 m2/g and a rutile content of greater than 10% but less than or equal to 40%, and a process for preparing the crystalline TiO2 powder, which involves: introducing a TiCl4 vapor and, separately therefrom, H2 and a primary air into a mixing chamber to produce a gaseous mixture; igniting the gaseous mixture in a burner to produce a flame, which is burned into a reaction chamber to produce the crystalline TiO2 powder and gaseous substances; and separating the crystalline TiO2 powder from the gaseous substances, wherein the relative amounts of TiCl4 vapor, H2 and primary air are selected to provide crystalline TiO2 powder having the aforementioned BET surface area and rutile content, with the proviso that factor A has a value of 0.1-0.4 g/m2 in accordance within the following formula: factor A=105{[(TiCl4 vapor×H2)/(amount of air×gaseous mixture)]/BET]}.

    摘要翻译: 提供了在BET表面积为70-100m 2 / g,金红石含量大于10%但小于或等于40%时具有可变烧结稳定性的聚集一次颗粒形式的结晶TiO 2粉末,以及 制备结晶TiO 2粉末的方法,其包括:将TiCl 4蒸气和与其分开的H 2和一次空气引入混合室以产生气态混合物; 点燃燃烧器中的气体混合物以产生火焰,其被燃烧到反应室中以产生结晶TiO 2粉末和气态物质; 并且从气态物质中分离出结晶TiO 2粉末,其中选择TiCl 4蒸汽,H 2和一次空气的相对量以提供具有上述BET表面积和金红石含量的结晶TiO 2粉末,条件是因子A的值为 0.1-0.4g / m 2,根据下式:因子A = 105 {[(TiCl4蒸气×H2)/(空气量×气态混合物)] / BET]}。

    Surface-modified silicas
    73.
    发明授权
    Surface-modified silicas 有权
    表面改性二氧化硅

    公开(公告)号:US07972431B2

    公开(公告)日:2011-07-05

    申请号:US12441992

    申请日:2007-09-11

    IPC分类号: C04B14/04

    摘要: Surface-modified silicas Surface-modified, highly structured, potassium oxide-doped silicas, characterized by BET surface area, m2/g: 25-400 average primary particle size, nm: 5-50 pH: 3-10 carbon content, % by weight: 0.1-10 potassium oxide content, % by weight: 0.000001-40 are prepared by subjecting a potassium oxide-doped silica to surface modification. It can be used as a filler in silicone rubber compositions.

    摘要翻译: 表面改性二氧化硅表面改性,高度结构化的氧化钾掺杂二氧化硅,其特征在于BET表面积,m2 / g:25-400平均一次粒径,nm:5-50 pH:3-10碳含量,% 重量:0.1-10氧化钾含量,重量%:0.000001-40是通过使掺杂氧化钾的二氧化硅进行表面改性来制备的。 它可以用作硅橡胶组合物中的填料。

    Silicon dioxide dispersion
    74.
    发明授权
    Silicon dioxide dispersion 有权
    二氧化硅分散体

    公开(公告)号:US07824643B2

    公开(公告)日:2010-11-02

    申请号:US10524037

    申请日:2003-07-29

    IPC分类号: C01B33/12 C01B33/18

    摘要: Stable, aqueous dispersion containing silicon dioxide powder having a hydroxyl group density of 2.5 to 4.7 OH/nm2, which is obtained from a silicon dioxide powder produced by a flame hydrolysis process under acid conditions. The dispersion is produced by incorporating the silicon dioxide powder into an aqueous solution by means of a dispersing device. The dispersion can be used to produce glass articles.

    摘要翻译: 稳定的含有二氧化硅粉末的水性分散体,该二氧化硅粉末的羟基密度为2.5〜4.7HOH / nm 2,其由在酸性条件下通过火焰水解法生产的二氧化硅粉末得到。 分散体是通过将二氧化硅粉末通过分散装置并入水溶液而制成的。 分散体可用于生产玻璃制品。

    Flame-hydrolytically produced titanium dioxide powder
    75.
    发明授权
    Flame-hydrolytically produced titanium dioxide powder 有权
    火焰水解生产的二氧化钛粉末

    公开(公告)号:US07686881B2

    公开(公告)日:2010-03-30

    申请号:US10580325

    申请日:2004-11-24

    摘要: Flame-hydrolytically produced titanium dioxide powder that is present in the form of aggregates of primary particles, and has a BET surface of 20 to 200 m²/g, a half width (HW) [nm] of the primary particle distribution of HW = a×BETf where a = 670×10−9 m³/g and −1.3 ≤ f ≤ −1.0 and the proportion of particles with a diameter of more than 45 &mgr;m lies in a range from 0.0001 to 0.05 wt. %. The powder is produced by a process in which a titanium halide is vapourised at temperatures of less than 200°C., the vapours are transferred to a mixing chamber by means of a carrier gas of defined moisture content and, separately from this, hydrogen, primary air, which may optionally be enriched with oxygen and/or preheated, and steam are added to the mixing chamber, following which the reaction mixture is combusted in a reaction chamber sealed from the ambient air, secondary air is in addition introduced into the reaction chamber, the solid is then separated from gaseous substances, and following this the solid is treated with steam. The titanium dioxide powder may be used for the heat stabilisation of polymers.

    摘要翻译: 火焰水解生产的二氧化钛粉末以一次粒子聚集体的形式存在,并且具有20至200m 2 / g的BET表面,HW = a的一次粒子分布的半宽度(HW)[nm] ×BETf,其中a = 670×10 -9 m 3 / g和-1.3≤f≤-1.0,直径大于45μm的颗粒的比例在0.0001至0.05重量%的范围内。 %。 该粉末通过其中卤化钛在低于200℃的温度下蒸发的方法制备,蒸气通过具有确定水分含量的载气转移到混合室中,并且与之分开地形成氢气, 可以任选地富含氧和/或预热的一次空气,并将蒸汽加入到混合室中,随后将反应混合物在与环境空气密封的反应室中燃烧,再将二次空气引入反应 然后将固体与气体物质分离,然后用蒸汽处理固体。 二氧化钛粉末可用于聚合物的热稳定化。

    SURFACE-MODIFIED SILICAS
    76.
    发明申请
    SURFACE-MODIFIED SILICAS 有权
    表面改性硅

    公开(公告)号:US20100022694A1

    公开(公告)日:2010-01-28

    申请号:US12441992

    申请日:2007-09-11

    IPC分类号: C08K3/22 C04B16/08

    摘要: Surface-modified silicas Surface-modified, highly structured, potassium oxide-doped silicas, characterized by BET surface area, m2/g: 25-400 average primary particle size, nm: 5-50 pH: 3-10 carbon content, % by weight: 0.1-10 potassium oxide content, % by weight: 0.000001-40 are prepared by subjecting a potassium oxide-doped silica to surface modification. It can be used as a filler in silicone rubber compositions.

    摘要翻译: 表面改性二氧化硅表面改性,高度结构化的氧化钾掺杂二氧化硅,其特征在于BET表面积,m2 / g:25-400平均一次粒径,nm:5-50 pH:3-10碳含量,% 重量:0.1-10氧化钾含量,重量%:0.000001-40是通过使掺杂氧化钾的二氧化硅进行表面改性来制备的。 它可以用作硅橡胶组合物中的填料。

    Process for Producing a Substantially Shell-Shaped Component
    77.
    发明申请
    Process for Producing a Substantially Shell-Shaped Component 有权
    生产基本壳形成分的方法

    公开(公告)号:US20090115088A1

    公开(公告)日:2009-05-07

    申请号:US11922940

    申请日:2006-06-30

    IPC分类号: B64C1/00 B29C35/00

    摘要: Disclosed is a process for producing a substantially shell-shaped component, from substantially carbon-fiber-reinforced synthetic material having at least one local reinforcing zone and at least one stiffening element, in particular a fuselage shell, a wing shell, a vertical stabilizer shell or horizontal stabilizer shell of an aircraft or the like. The process according to the invention comprises the following steps: arranging at least one doubler which has already been cured, on an at most partially cured shell skin to form the local reinforcing zone, applying at least one stiffening element which has already been cured, and placing at least one at most partially cured connecting angle bracket against the at least one stiffening element at least in the region of the at least one doubler, and curing the shell skin and the connecting angle bracket.

    摘要翻译: 公开了一种从基本上由碳纤维增强的合成材料制成的基本上壳形的部件的方法,所述合成材料具有至少一个局部增强区域和至少一个加强元件,特别是机身壳体,机翼壳体,垂直稳定器壳体 或水平稳定器壳体等。 根据本发明的方法包括以下步骤:将已经固化的至少一个倍增器布置在至多部分固化的壳皮肤上以形成局部加强区域,施加至少一个已经固化的加强元件,以及 至少在所述至少一个倍增器的区域中至少布置至少部分固化的连接角支架抵靠所述至少一个加强元件,并且固化所述外壳皮肤和所述连接角支架。

    Pyrogenically produced silicon dioxide powder and silicone sealing compound containing this powder
    78.
    发明授权
    Pyrogenically produced silicon dioxide powder and silicone sealing compound containing this powder 有权
    热解产生的二氧化硅粉末和含有这种粉末的硅氧烷密封化合物

    公开(公告)号:US07439298B2

    公开(公告)日:2008-10-21

    申请号:US11084022

    申请日:2005-03-21

    IPC分类号: C08K3/34

    摘要: Pyrogenically produced silicon dioxide powder in the form of aggregates of primary particles having a BET surface area of 150±15 m2/g, wherein the aggregates display an average surface area of 12000 to 20000 nm2, an average equivalent circle diameter (ECD) of 90 to 120 nm and an average circumference of 1150 to 1700 nm. It is produced by a pyrogenic process in which silicon tetrachloride and a second silicon component comprising H3SiCl, H2SiCl2, HSiCl3, CH3SiCl3, (CH3)2SiCl2, (CH3)3SiCl and/or (n-C3H7)SiCl3 are mixed with primary air and a combustion gas and burnt into a reaction chamber, secondary air also being introduced into the reaction chamber, and the feed materials being chosen such that an adiabatic flame temperature of 1670 to 1730° C. is obtained. Silicone sealing compound containing the pyrogenically produced silicon dioxide powder.

    摘要翻译: 以BET表面积为150±15m 2 / g的一次粒子的聚集体形式的热解生成的二氧化硅粉末,其中聚集体的平均表面积为12000〜20000nm, 2,平均当量圆直径(ECD)为90〜120nm,平均圆周为1150〜1700nm。 它是通过热原法制造的,其中四氯化硅和包含H 3 SiCl,H 2 SiCl 2,HSiCl 3>与一次空气和燃烧气体混合并燃烧到反应室中,二次空气也被引入反应室,并且进料选择为使得绝热火焰温度为1670至1730℃ C.得到。 含有热解法生产的二氧化硅粉末的硅酮密封剂。

    Use of Titanium Dioxide Mixed Oxide as a Photocatalyst
    79.
    发明申请
    Use of Titanium Dioxide Mixed Oxide as a Photocatalyst 审中-公开
    使用二氧化钛混合氧化物作为光催化剂

    公开(公告)号:US20080188370A1

    公开(公告)日:2008-08-07

    申请号:US11995837

    申请日:2006-07-06

    摘要: Use of titanium dioxide mixed oxide as a photocatalyst, wherein the titanium dioxide mixed oxide has the following features: BET surface area: 5 to 300 m2/g, mixed oxide component: one or several oxides from the group comprising aluminium, cerium, silicon, tungsten, zinc and zirconium, proportions: titanium dioxide more than 97.5 wt. %, mixed oxide component ≧0.1 to

    摘要翻译: 使用二氧化钛混合氧化物作为光催化剂,其中所述二氧化钛混合氧化物具有以下特征:BET表面积:5至300m 2 / g,混合氧化物组分:一种或多种氧化物,其包含铝,铈,硅, 钨,锌和锆,比例:二氧化钛大于97.5wt。 %,混合氧化物组分> = 0.1至<2wt。 %,二氧化钛和二次成分的含量之和至少为99.5重量% %,各自基于混合氧化物的总量,含有共生金红石和锐钛矿相的一次粒子的二氧化钛含量。

    Pyrogenically produced silicon dioxide powder
    80.
    发明授权
    Pyrogenically produced silicon dioxide powder 有权
    热解生成二氧化硅粉末

    公开(公告)号:US07351388B2

    公开(公告)日:2008-04-01

    申请号:US11085151

    申请日:2005-03-22

    IPC分类号: C01B33/12

    CPC分类号: C01B33/183 Y10T428/2982

    摘要: Pyrogenically produced silicon dioxide powder in the form of aggregates of primary particles having a BET surface area of 300±25 m2/g, wherein the aggregates display an average surface area of 4800 to 6000 nm2, an average equivalent circle diameter (ECD) of 60 to 80 nm and an average circumference of 580 to 750 nm.It is produced by a pyrogenic process in which silicon tetrachloride and a maximum of up to 40 wt. % of a second silicon component comprising H3SiCl, H2SiCl2, HSiCl3, CH3SiCl3, (CH3)2SiCl2, (CH3)3SiCl and/or (n-C3H7)SiCl3 are mixed with primary air and a combustion gas and burnt into a reaction chamber, secondary air also being introduced into the reaction chamber, and the feed materials being chosen such that an adiabatic flame temperature of 1390 to 1450° C. is obtained.It can be used as a filler.

    摘要翻译: 以BET表面积为300±25m 2 / g的一次粒子的聚集体形式的热解生成的二氧化硅粉末,其中聚集体的平均表面积为4800〜6000nm, 2,平均当量圆直径(ECD)为60〜80nm,平均周长为580〜750nm。 它是通过热解法生产的,其中四氯化硅和最多达40wt。 %的包含H 3 SiCl,H 2 SiCl 2,HSiCl 3,CH,SUB的第二硅组分的% (CH 3)3 SiCl 3,(CH 3 3)2 SiCl 2,(CH 3) 3 N 3 SiCl 3和/或(n C 3 H 7)SiCl 3 3与 初级空气和燃烧气体并燃烧到反应室中,二次空气也被引入反应室,并且进料选择为使得绝热火焰温度为1390至1450℃。 它可以用作填料。