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    • 5. 发明申请
    • Process for the Production of Doped Metal Oxide Particles
    • 掺杂金属氧化物颗粒生产工艺
    • US20080311291A1
    • 2008-12-18
    • US12091767
    • 2006-10-10
    • Kai SchumacherRainer GolchertHelmut RothHarald AlffMatthias Rochnia
    • Kai SchumacherRainer GolchertHelmut RothHarald AlffMatthias Rochnia
    • B05D7/00C09K3/00B01J23/10B01J21/08B01J21/12B01J23/04B01J23/34B01J23/745B01J23/02
    • C01B13/145C01G23/04C01P2002/52C01P2006/12C09C1/0081C09C1/3045C09C3/06C23C8/10
    • Process for the production of doped metal oxide particles, wherein the doping component is present on the surface in the form of domains, wherein in a first reaction zone, an oxidizable and/or - hydrolysable metal compound as dopant together with an atomization gas is atomised into a flow of metal oxide particles in a carrier gas, wherein the mass flow of the metal oxide particles und - the mass flow of the dopant are selected such that the doped metal oxide particles contain 10 ppm to 10 wt. % of the doping component, where the quantity of dopant to be introduced is calculated as the corresponding oxide, and wherein the temperature in the first reaction zone is - selected such that it is below the boiling temperature of the dopant under the prevailing reaction conditions, and then, in a second reaction zone, the flow from the first - reaction zone and optionally at least as much oxygen and/or steam are - introduced that the quantity of oxygen and/or steam at least suffices completely to convert the dopant, wherein the temperature is from 300 to 2000° C., - preferably 500 to 1000° C., and the reaction mixture is then cooled or allowed to cool and the doped metal oxide particles are separated from the gaseous substances.
    • 用于生产掺杂金属氧化物颗粒的方法,其中所述掺杂组分以畴形式存在于所述表面上,其中在第一反应区中,作为掺杂剂的可氧化和/或可水解的金属化合物与雾化气体一起雾化 进入载气中的金属氧化物颗粒的流动,其中选择金属氧化物颗粒的质量流量和掺杂剂的质量流量,使得掺杂的金属氧化物颗粒含有10ppm至10wt。 掺杂成分的%,其中待引入的掺杂剂的量被计算为相应的氧化物,并且其中第一反应区中的温度被选择为使得其在主要反应条件下低于掺杂剂的沸点温度, 然后在第二反应区中引入来自第一反应区和任选地至少相同的氧和/或蒸汽的流量,使得氧和/或蒸汽的量至少足以完全转化掺杂剂,其中 温度为300至2000℃,优选为500至1000℃,然后将反应混合物冷却或冷却,并将掺杂的金属氧化物颗粒与气态物质分离。
    • 6. 发明授权
    • Process for the production of doped metal oxide particles
    • 用于生产掺杂金属氧化物颗粒的方法
    • US08535633B2
    • 2013-09-17
    • US12091767
    • 2006-10-10
    • Kai SchumacherRainer GolchertHelmut RothHarald AlffMatthias Rochnia
    • Kai SchumacherRainer GolchertHelmut RothHarald AlffMatthias Rochnia
    • C01B13/00
    • C01B13/145C01G23/04C01P2002/52C01P2006/12C09C1/0081C09C1/3045C09C3/06C23C8/10
    • Process for the production of doped metal oxide particles, wherein the doping component is present on the surface in the form of domains, wherein in a first reaction zone, an oxidizable and/or —hydrolysable metal compound as dopant together with an atomization gas is atomized into a flow of metal oxide particles in a carrier gas, wherein the mass flow of the metal oxide particles und —the mass flow of the dopant are selected such that the doped metal oxide particles contain 10 ppm to 10 wt. % of the doping component, where the quantity of dopant to be introduced is calculated as the corresponding oxide, and wherein the temperature in the first reaction zone is —selected such that it is below the boiling temperature of the dopant under the prevailing reaction conditions, and then, in a second reaction zone, the flow from the first —reaction zone and optionally at least as much oxygen and/or steam are —introduced that the quantity of oxygen and/or steam at least suffices completely to convert the dopant, wherein the temperature is from 300 to 2000° C., —preferably 500 to 1000° C., and the reaction mixture is then cooled or allowed to cool and the doped metal oxide particles are separated from the gaseous substances.
    • 用于生产掺杂金属氧化物颗粒的方法,其中掺杂组分以畴的形式存在于表面上,其中在第一反应区中,作为掺杂剂的可氧化和/或可水解的金属化合物与雾化气体一起雾化 进入载气中的金属氧化物颗粒的流动,其中选择金属氧化物颗粒的质量流与掺杂剂的质量流量,使得掺杂的金属氧化物颗粒含有10ppm至10wt。 掺杂成分的%,其中待引入的掺杂剂的量被计算为相应的氧化物,并且其中选择第一反应区中的温度使得其在主要反应条件下低于掺杂剂的沸点温度, 然后,在第二反应区中,引入来自第一反应区和任选地至少相同氧和/或蒸汽的流动,使得氧和/或蒸汽的量至少足以完全转化掺杂剂,其中 温度为300〜2000℃,优选为500〜1000℃,然后将反应混合物冷却或冷却,并将掺杂的金属氧化物颗粒与气态物质分离。
    • 7. 发明申请
    • Aluminium oxide powder produced by flame hydrolysis and having a large surface area
    • 通过火焰水解产生的具有大的表面积的氧化铝粉末
    • US20070111880A1
    • 2007-05-17
    • US10583723
    • 2004-11-30
    • Kai SchumacherRainer GolchertRoland SchillingChristoph Batz-SohnMartin Morters
    • Kai SchumacherRainer GolchertRoland SchillingChristoph Batz-SohnMartin Morters
    • C04B35/10C04B24/00
    • C01F7/302C01P2002/01C01P2002/02C01P2002/72C01P2004/50C01P2006/10C01P2006/12C01P2006/19
    • Aluminium oxide powder produced by flame hydrolysis and consisting of aggregates of primary particles, having a BET surface area of from 100 to 250 m2/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.
    • 由火焰水解产生的氧化铝粉末,其由BET表面积为100〜250m 2 / g的一次粒子的聚集体组成,邻苯二甲酸二丁酯的吸收为50〜450g / 100g 的氧化铝粉末,该粉末仅在高分辨率TEM图像中仅显示结晶一级颗粒。 它是通过汽化氯化铝,通过载气将蒸气转移到混合室中制备的,并且与其分开供应氢气,空气(一次空气),其可以任选地富含氧气和/ 加热到混合室,然后点燃燃烧器中的氯化铝蒸气,氢气,空气的混合物,并将火焰燃烧成与周围空气分离的反应室,随后将固体材料与气态物质分离,然后处理 具有蒸汽和任选地具有空气的固体材料,反应混合物从混合室进入反应室的排出速率为至少10m / s,λ值为1至10,γ值为1至 它可以用作喷墨介质中的吸墨物质。
    • 9. 发明授权
    • Aluminium oxide powder produced by flame hydrolysis and having a large surface area
    • 通过火焰水解产生的具有大的表面积的氧化铝粉末
    • US07749322B2
    • 2010-07-06
    • US10583723
    • 2004-11-30
    • Kai SchumacherRainer GolchertRoland SchillingChristoph Batz-SohnMartin Moerters
    • Kai SchumacherRainer GolchertRoland SchillingChristoph Batz-SohnMartin Moerters
    • C04B14/04B24D3/02C01F1/00
    • C01F7/302C01P2002/01C01P2002/02C01P2002/72C01P2004/50C01P2006/10C01P2006/12C01P2006/19
    • Aluminium oxide powder produced by flame hydrolysis and consisting of aggregates of primary particles, having a BET surface area of from 100 to 250 m2/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 vaporizing 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.
    • 由火焰水解生成的氧化铝粉末,其由BET表面积为100〜250m 2 / g的一次粒子的聚集体,邻苯二甲酸二丁酯的吸收为50〜450g / 100g的氧化铝粉末,该粉末显示 只有晶体初级粒子在高分辨率TEM图片中。 它是通过汽化氯化铝,通过载气将蒸气转移到混合室中制备的,并与其分开供应氢气,空气(一次空气),其可以任选地富含氧气和/ 加热到混合室,然后点燃燃烧器中的氯化铝蒸气,氢气,空气的混合物,并将火焰燃烧成与周围空气分离的反应室,随后将固体材料与气态物质分离,然后处理 具有蒸汽和任选地具有空气的固体材料,反应混合物从混合室进入反应室的排出速率为至少10m / s,λ值为1至10,γ值为1至 它可以用作喷墨介质中的吸墨物质。