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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
CPC分类号： C04B35/62665 , B01J21/063 , B01J35/002 , B01J35/1014 , B01J37/0238 , B01J37/349 , C01G23/07 , C01P2004/50 , C01P2004/80 , C01P2006/11 , C01P2006/12 , C04B2235/3232 , C04B2235/5409 , Y10T428/2982
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]}。
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公开(公告)号：US08062622B2
公开(公告)日：2011-11-22
申请号：US12634732
申请日：2009-12-10
IPC分类号： C01G23/07 , C01G23/047
CPC分类号： C01G23/07 , C01P2004/80 , C01P2006/11 , C01P2006/12 , C04B35/46 , C04B35/62665 , C04B35/6268 , C04B2235/3232 , C04B2235/444 , C04B2235/5409 , C04B2235/724 , C04B2235/76 , Y02P20/129
摘要： A crystalline titanium dioxide powder, containing aggregated primary particles, wherein a BET surface area of the aggregated primary particles is from 30 to 65 m2/g, and a rutile content of a sum of crystalline modifications in the crystalline titanium dioxide is from of 50-70%.
摘要翻译： 一种结晶二氧化钛粉末，其含有聚集的一次粒子，其中聚集的一次粒子的BET表面积为30〜65m 2 / g，结晶性二氧化钛中的结晶变性之和的金红石含量为50〜 70％。
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公开(公告)号：US20100150819A1
公开(公告)日：2010-06-17
申请号：US12634732
申请日：2009-12-10
IPC分类号： C01G23/07
CPC分类号： C01G23/07 , C01P2004/80 , C01P2006/11 , C01P2006/12 , C04B35/46 , C04B35/62665 , C04B35/6268 , C04B2235/3232 , C04B2235/444 , C04B2235/5409 , C04B2235/724 , C04B2235/76 , Y02P20/129
摘要： A crystalline titanium dioxide powder, containing aggregated primary particles, wherein a BET surface area of the aggregated primary particles is from 30 to 65 m2/g, and a rutile content of a sum of crystalline modifications in the crystalline titanium dioxide is from of 50-70%.
摘要翻译： 一种结晶二氧化钛粉末，其含有聚集的一次粒子，其中聚集的一次粒子的BET表面积为30〜65m 2 / g，结晶性二氧化钛中的结晶变性之和的金红石含量为50〜 70％。
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公开(公告)号：US20080292539A1
公开(公告)日：2008-11-27
申请号：US12125116
申请日：2008-05-22
IPC分类号： C01G23/047
CPC分类号： C01G23/07 , C01P2004/80 , C01P2006/11 , C01P2006/12 , C04B35/46 , C04B35/62665 , C04B35/6268 , C04B2235/3232 , C04B2235/444 , C04B2235/5409 , C04B2235/724 , C04B2235/76 , Y02P20/129
摘要： A crystalline titanium dioxide powder, containing aggregated primary particles, wherein a BET surface area of the aggregated primary particles is from 30 to 65 m2/g, and a rutile content of a sum of crystalline modifications in the crystalline titanium dioxide is from of 50-70%.
摘要翻译： 一种结晶二氧化钛粉末，其含有聚集的一次粒子，其中聚集的一次粒子的BET表面积为30〜65m 2 / g，结晶性二氧化钛中的结晶变性之和的金红石含量为50〜 70％。
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5.发明授权公开(公告)号：US08209999B2
公开(公告)日：2012-07-03
申请号：US12667696
申请日：2008-06-04
CPC分类号： C09C1/3036 , C01P2006/11 , C03B19/06 , C03B19/066 , C03B20/00 , C03C3/06 , C03C12/00 , Y10T428/2982
摘要： Silica glass granule having the following features: Area:100 to 5000 μm2, ECD:5 to 100μm, Circumference:20 to 400μm, Maximum diameter:10 to 140μm, Minimum diameter:5 to 80μm, where all values are medium values, Specific BET surface area: 800 μm, c) the slug fragments having a tamped density of 300 to 600 g/l, and d) subsequently treating them at 600 to 1100° C. in an atmosphere which comprises one or more compounds which are suitable for removing hydroxyl groups, and e) then sintering them at 1200° C. to 1400° C.
摘要翻译： 二氧化硅玻璃颗粒具有以下特征：面积：100〜5000μm2，ECD：5〜100μm，周长：20〜400μm，最大直径：10〜140μm，最小直径：5〜80μm，全部为中等 值，比表面积：<1m2 / g杂质：<50ppm它是通过以下方法制备的：a）将15至190g / l的夯实密度的热解二氧化硅粉末压成块状物，b）随后将其粉碎并除去渣块 直径小于100μm和>800μm的碎片，c）块状碎片具有300-600g / l的夯实密度，以及d）随后在600-1100℃下在包含一个或多个 更多适用于除去羟基的化合物，以及e）然后在1200℃至1400℃烧结。
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公开(公告)号：US20100183495A1
公开(公告)日：2010-07-22
申请号：US12667796
申请日：2008-06-16
IPC分类号： C01B33/12
CPC分类号： C03C12/00 , C01P2006/11 , C01P2006/12 , C01P2006/80 , C03C2201/02 , C03C2201/32 , C03C2201/3476 , C03C2201/42 , C09C1/3036
摘要： Process for preparing a silicon dioxide granule having a specific surface area of less than 1 m2/g and a proportion of impurities of less than 50 ppm, in which a) a silicon dioxide powder with a tamped density of 15 to 190 g/l, b) is compacted to slugs which are subsequently crushed, the slug fragments having a tamped density of 210 to 800 g/l, and c) the slug fragments are treated with one or more reactive compounds at 400 to 1100° C.
摘要翻译： 制备比表面积小于1m 2 / g的二氧化硅颗粒和小于50ppm的杂质比例的二氧化硅颗粒的方法，其中a）捣实密度为15至190g / l的二氧化硅粉末， b）被压实成随后被粉碎的块塞，碎块碎片具有210至800g / l的夯实密度，和c）在140至1100℃下用一种或多种反应性化合物处理段状碎片。
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公开(公告)号：US20100178509A1
公开(公告)日：2010-07-15
申请号：US12667696
申请日：2008-06-04
CPC分类号： C09C1/3036 , C01P2006/11 , C03B19/06 , C03B19/066 , C03B20/00 , C03C3/06 , C03C12/00 , Y10T428/2982
摘要： Silica glass granule having the following features: Area: 100 to 5000 μm2, ECD: 5 to 100 μm, Circumference: 20 to 400 μm, Maximum diameter: 10 to 140 μm, Minimum diameter: 5 to 80 μm, where all values are medium values, Specific BET surface area: 800 μm, c) the slug fragments having a tamped density of 300 to 600 g/l, and d) subsequently treating them at 600 to 1100° C. in an atmosphere which comprises one or more compounds which are suitable for removing hydroxyl groups, and e) then sintering them at 1200° C. to 1400° C.
摘要翻译： 二氧化硅玻璃颗粒具有以下特征：面积：100〜5000μm2，ECD：5〜100μm，周长：20〜400μm，最大直径：10〜140μm，最小直径：5〜80μm，全部为中等 值BET比表面积：<1m 2 / g杂质：<50ppm它是通过以下方法制备的：a）将捣实密度为15〜190g / l的致热二氧化硅粉末压成块状物，b）随后将其粉碎并除去渣块 直径小于100μm和>800μm的碎片，c）块状碎片具有300-600g / l的夯实密度，以及d）随后在600-1100℃下在包含一个或多个 更多适用于除去羟基的化合物，以及e）然后在1200℃至1400℃烧结。
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8.发明申请PROCESS FOR PREPARING AN ALUMINIUM OXIDE POWDER HAVING A HIGH ALPHA-AL2O3 CONTENT 有权制备具有高ALPHA-AL2O3含量的氧化铝粉末的方法公开(公告)号：US20110217552A1
公开(公告)日：2011-09-08
申请号：US13129070
申请日：2009-11-17
CPC分类号： C01F7/441 , C01F7/42 , C01P2004/50 , C01P2004/51 , C01P2004/62 , C01P2006/12
摘要： Process for preparing an aluminium oxide powder which is present in the form of aggregated primary particles and comprises at least 85% by weight of alpha-aluminium oxide, in which an aluminium oxide powder which a) is present in the form of aggregated primary particles, b) is selected from the group consisting of gamma-aluminium oxide, theta-aluminium oxide, delta-aluminium oxide and/or X-ray amorphous aluminium oxide, and c) has a tamped density of at least 250 g/l, is subject to a heat treatment at 13000C or more and subsequently milled. Aluminium oxide powder which can be obtained by this process. Aluminium oxide powder in the form of aggregated primary particles having a BET surface area of from 3 to 30 m2/g, in which the proportion of alpha-aluminium oxide is at least 85% by weight and the ratio dgo/dio of the weight distribution of the primary particles is at least 2.8. Use as constituent of fluorescent tubes.
摘要翻译： 制备氧化铝粉末的方法，其以聚集的一次粒子的形式存在并且包含至少85重量％的α-氧化铝，其中a）以聚集的一次粒子的形式存在的氧化铝粉末， b）选自γ-氧化铝，θ-氧化铝，δ-氧化铝和/或X射线无定形氧化铝，以及c）具有至少250g / l的夯实密度，为受试者 在1300℃以上进行热处理，随后研磨。 可以通过该方法获得的氧化铝粉末。 呈BET表面积为3〜30m2 / g的聚集一次粒子形式的氧化铝粉末，其中α-氧化铝的比例为85重量％以上，重量分布比dgo / d 10 的初级粒子至少为2.8。 用作荧光灯管的组成部分。
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9.发明授权Process for preparing an aluminium oxide powder having a high alpha-Al2O3 content 有权制备具有高α-Al 2 O 3含量的氧化铝粉末的方法公开(公告)号：US08834833B2
公开(公告)日：2014-09-16
申请号：US13129070
申请日：2009-11-17
CPC分类号： C01F7/441 , C01F7/42 , C01P2004/50 , C01P2004/51 , C01P2004/62 , C01P2006/12
摘要： Process for preparing an aluminum oxide powder which is present in the form of aggregated primary particles and comprises at least 85% by weight of alpha-aluminum oxide, in which an aluminum oxide powder which a) is present in the form of aggregated primary particles, b) is selected from the group consisting of gamma-aluminum oxide, theta-aluminum oxide, delta-aluminum oxide and/or X-ray amorphous aluminum oxide, and c) has a tamped density of at least 250 g/l, is subject to a heat treatment at 13000 C or more and subsequently milled. Aluminum oxide powder which can be obtained by this process. Aluminum oxide powder in the form of aggregated primary particles having a BET surface area of from 3 to 30 m2/g, in which the proportion of alpha-aluminum oxide is at least 85% by weight and the ratio dgo/dio of the weight distribution of the primary particles is at least 2.8. Use as constituent of fluorescent tubes.
摘要翻译： 制备氧化铝粉末的方法，其以聚集的一次粒子的形式存在并且包含至少85重量％的α-氧化铝，其中a）以聚集的一次粒子的形式存在的氧化铝粉末， b）选自γ-氧化铝，θ-氧化铝，δ-氧化铝和/或X射线无定形氧化铝，以及c）具有至少250g / l的夯实密度，为受试者 进行13000℃以上的热处理，随后研磨。 可以通过该方法获得的氧化铝粉末。 呈BET表面积为3〜30m2 / g的聚集一次粒子形式的氧化铝粉末，其中α-氧化铝的比例为85重量％以上，重量分布比dgo / d 10 的初级粒子至少为2.8。 用作荧光灯管的组成部分。
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