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    • 1. 发明专利
    • Method for producing particle aggregate
    • 生产颗粒聚集体的方法
    • JP2012236763A
    • 2012-12-06
    • JP2012158944
    • 2012-07-17
    • Sumitomo Osaka Cement Co Ltd住友大阪セメント株式会社
    • KINOSHITA NOBORUKAWASE TAKESHIGUSHIKEN TORU
    • C01G25/02C01G25/00H01M4/88H01M8/12
    • Y02E60/525
    • PROBLEM TO BE SOLVED: To provide a method for producing a particle aggregate, from which a fuel electrode or an air electrode having a large specific surface area for a solid oxide fuel cell by a simple and inexpensive method can be fabricated.SOLUTION: The method includes: a step A of dispersing a cubic zirconia particle or a stabilized zirconia particle having a primary particle diameter of ≥1 nm and ≤20 nm and a dispersion particle diameter of ≥1 nm and ≤100 nm in a solvent to thereby prepare a particle dispersion liquid; a step B of spraying the particle dispersion liquid to make a sprayed liquid state, and exposing the particle dispersion liquid in the sprayed liquid state to a cooling substance of ≥-196°C and ≤0°C to thereby freeze the particle dispersion liquid; and a step C of subliming and removing the solvent of the frozen particle dispersion liquid, wherein in the step A, the content of the cubic zirconia particle or the stabilized zirconia particle is made ≥1 mass% and ≤70 mass%; and in the step B, the liquid droplet diameter in the sprayed liquid state is made ≥1 μm and ≤100 μm.
    • 要解决的问题:为了提供一种制造颗粒聚集体的方法,可以通过简单且便宜的方法制造用于固体氧化物燃料电池的具有大的比表面积的燃料电极或空气电极。 解决方案:该方法包括:将一次粒径为≥1nm且≤20nm,分散粒径为≥1nm且≤100nm的立方氧化锆粒子或稳定化的氧化锆粒子分散在 溶剂,从而制备颗粒分散液; 喷雾粒子分散液以喷射液体状态的步骤B,将喷射液状的粒子分散液暴露于≥-196℃,≤0℃的冷却物质,使粒子分散液冷冻; 以及升华和除去冷冻颗粒分散液的溶剂的步骤C,其中在步骤A中,立方氧化锆颗粒或稳定的氧化锆颗粒的含量为≥1质量%和≤70质量%; 并且在步骤B中,喷射液体状态下的液滴直径为≥1μm,≤100μm。 版权所有(C)2013,JPO&INPIT
    • 2. 发明专利
    • Method for producing aggregate particle
    • 生产聚集粒子的方法
    • JP2011162416A
    • 2011-08-25
    • JP2010029355
    • 2010-02-12
    • Sumitomo Osaka Cement Co LtdTohoku Univ住友大阪セメント株式会社国立大学法人東北大学
    • KINOSHITA NOBORUINOMATA HIROSHIOTA MASAKIAKIMOTO KEITA
    • C01G25/02C01F17/00C01G9/02C01G23/053
    • PROBLEM TO BE SOLVED: To provide a high-speed method for producing aggregate particles formed by aggregation of nanoparticles of a metal oxide, a hydrated metal oxide or a metal hydroxide, the aggregate particles having an average particle diameter of μm order and being narrow in particle size distribution (uniform in particle diameter), while reducing an influence on the environment. SOLUTION: The method for producing aggregate particles having an average particle diameter of 0.1-5 μm formed by aggregation of nanoparticles includes: a step of forming a mixture by mixing high density carbon dioxide and an aqueous dispersion of nanoparticles of a metal oxide, a hydrated metal oxide or a metal hydroxide; a step of obtaining ice droplet particles by spraying the mixture from a nozzle; and a step of removing water from the ice droplet particles by drying. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种用于生产由金属氧化物,水合金属氧化物或金属氢氧化物的纳米颗粒聚集形成的聚集颗粒的高速方法,所述聚集颗粒的平均粒径为μm阶, 粒径分布窄(粒径均匀),同时减少对环境的影响。 解决方案:通过纳米颗粒聚集形成的平均粒径为0.1-5μm的聚集颗粒的方法包括:通过混合高密度二氧化碳和金属氧化物纳米颗粒的水分散体形成混合物的步骤 ,水合金属氧化物或金属氢氧化物; 通过从喷嘴喷射混合物获得冰滴颗粒的步骤; 以及通过干燥从冰滴粒子除去水分的步骤。 版权所有(C)2011,JPO&INPIT
    • 7. 发明专利
    • Silver fine particle and its production method
    • 银精细颗粒及其生产方法
    • JP2005105376A
    • 2005-04-21
    • JP2003342180
    • 2003-09-30
    • Sumitomo Osaka Cement Co Ltd住友大阪セメント株式会社
    • YANAGISAWA TSUNEOKINOSHITA NOBORUNUKUI HIDEKI
    • B22F9/24B22F1/00H01B5/00H01B13/00
    • PROBLEM TO BE SOLVED: To provide silver fine particles which have a small particle diameter and a shape of a high aspect ratio, can be fused and sintered at low temperatures and can form an electrically conductive thin film having excellent optical transparency and electrical conductivity, and to provide a method of relatively easily producing the silver fine particles.
      SOLUTION: Each of the silver fine particles is almost a planar particle having two principal planes, and has a thickness of ≤50 nm and a major axis of ≤5,000 nm. In the method of producing the silver fine particles, a solution obtained by dissolving at least a polymer compound, a reducing agent and a silver salt is stirred at 25 to 60°C.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题为了提供具有小粒径和高纵横比的形状的银微粒,可以在低温下熔融和烧结,并且可以形成具有优异的光学透明性和电气的导电薄膜 导电性,并且提供相对容易地生产银微粒的方法。 解决方案:每个银微粒几乎是具有两个主平面的平面颗粒,并且具有≤50nm的厚度和≤5,000nm的长轴。 在制造银微粒子的方法中,将至少将高分子化合物,还原剂和银盐溶解得到的溶液在25〜60℃下搅拌。 版权所有(C)2005,JPO&NCIPI