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21. 发明授权

US07067452B2 Ceramic catalyst body 失效
公开(公告)号：US07067452B2
公开(公告)日：2006-06-27
申请号：US09960498
申请日：2001-09-24
申请人： Masakazu Tanaka , Tosiharu Kondo , Tomohiko Nakanishi , Kazuhiko Koike , Takashi Kondo , Tomomi Hase , Miho Ito
发明人： Masakazu Tanaka , Tosiharu Kondo , Tomohiko Nakanishi , Kazuhiko Koike , Takashi Kondo , Tomomi Hase , Miho Ito
IPC分类号： B01J23/00 , B01J21/00
CPC分类号： B01J35/04 , B01J23/40 , B01J23/56 , B01J33/00 , B01J37/0221 , B01J37/0248 , B01J38/00
摘要： (i) In a ceramic catalyst body which comprises a ceramic carrier which has a multitude of pores capable of supporting a catalyst directly on the surface of a substrate ceramic and a catalyst supported on the ceramic carrier, a layer containing an anti-evaporation metal such as Rh is formed on the outer surface of catalyst metal particles such as Pt or Rh. The layer containing the anti-evaporation metal protects the catalyst metal and prevents evaporation thereof, thereby suppressing the deterioration; and/or(ii) A ceramic catalyst body is made by having a main catalyst component and a promoter component directly on a ceramic carrier which can directly support the catalyst by substituting a part of the constituent elements of cordierite, and a trap layer is provided in the upstream thereof for trapping sulfur which is a catalyst poisoning component included in the exhaust gas. Since sulfur included in the exhaust gas can be collected by the trap layer, the catalyst poisoning component can be removed from the gas which enters the catalyst, thus preventing catalyst poisoning.

22. 发明授权

US06248421B1 Ceramic honeycomb structure and extrusion die 有权
标题翻译：陶瓷蜂窝结构和挤出模具
公开(公告)号：US06248421B1
公开(公告)日：2001-06-19
申请号：US09234985
申请日：1999-01-22
申请人： Kazuhiko Koike , Tomohiko Nakanishi , Yosiyasu Andou
发明人： Kazuhiko Koike , Tomohiko Nakanishi , Yosiyasu Andou
IPC分类号： B32B312
CPC分类号： B01D53/9454 , B01D53/885 , B01D53/94 , B01J35/04 , F01N3/2828 , Y02T10/22 , Y10T428/24149 , Y10T428/24165
摘要： A reinforcing layer 4 of nearly a cylindrical shape is formed along the outer circumferential portion of a ceramic honeycomb structure which comprises a cylindrical outer circumferential skin layer 1 and cell walls 2, the reinforcing layer 4 being formed at a position maintaining a one-cell pitch from the outer circumferential skin layer 1 and extending from one end surface of the ceramic honeycomb structure toward the other end surface thereof. The reinforcing layer 4 is integrally formed, of the same material, with the outer circumferential skin layer 1 and the cell walls 2 to reinforce the strength in the circumferential direction. This makes it possible to decrease the thickness of the cell walls 2 to not larger than 100 &mgr;m yet maintaining moldability and resistance to thermal shock.
摘要翻译：沿着陶瓷蜂窝结构体的外周部形成有大致圆筒状的加强层4，该陶瓷蜂窝结构体包括圆筒形的外周表皮层1和单元壁2，加强层4形成在保持单孔间距从外周皮层1延伸并从陶瓷蜂窝结构体的一个端面朝向另一端面延伸。增强层4与外周表皮层1和电池壁2一体地形成为同一材料，以增强圆周方向的强度。这使得可以将电池壁2的厚度减小到不大于100μm，同时保持成型性和耐热冲击性。

23. 发明授权

US08951932B2 Perovskite catalyst and method of manufacturing the same 有权
标题翻译：钙钛矿催化剂及其制造方法
公开(公告)号：US08951932B2
公开(公告)日：2015-02-10
申请号：US13299833
申请日：2011-11-18
申请人： Takeshi Yoshii , Tomohiko Nakanishi
发明人： Takeshi Yoshii , Tomohiko Nakanishi
IPC分类号： B01J21/00 , B01J23/00 , B01J25/00 , B01J29/00 , B01J23/10 , C01B13/18 , C01B13/14 , C01G45/12 , C01G49/00 , C01G51/00 , B01J37/24 , B01J23/889 , B01J23/83 , B01J35/10 , B01J37/22
CPC分类号： C01B13/185 , B01J23/002 , B01J23/83 , B01J23/8892 , B01J35/1009 , B01J35/1014 , B01J35/1038 , B01J37/22 , B01J37/24 , C01B13/14 , C01G45/1264 , C01G49/0054 , C01G51/68 , C01P2002/34 , C01P2002/72 , C01P2006/12 , C01P2006/14
摘要： A method of manufacturing a perovskite catalyst composed of perovskite oxide includes mixing step, firing step and acid-treating step. In the mixing step, an A-site material and a B-site material are mixed at a stoichiometric ratio such that the A-site is increased, compared to that of a theoretical composition ABO3 of perovskite oxide in which a ratio of A-site and B-site is 1:1. In the firing step, the obtained mixed powder is fired. In the acid-treating step, the obtained fired powder is acid-treated with acid of pH 2 or more and less than pH 7.
摘要翻译：由钙钛矿氧化物构成的钙钛矿催化剂的制造方法包括混合工序，烧成工序和酸处理工序。在混合步骤中，与化学计量比相比，A位点材料和B位点材料与A位点的A位点的理论组成ABO3相比，A位点增加， B站点为1：1。在烧成工序中，烧成所得混合粉末。在酸处理步骤中，将得到的烧制粉末用pH2以上且小于pH7的酸进行酸处理。

24. 发明授权

US07855162B2 Needle-shaped ceramic body, needle-shaped ceramic catalyst body and method for producing same 失效
标题翻译：针状陶瓷体，针状陶瓷催化剂体及其制造方法
公开(公告)号：US07855162B2
公开(公告)日：2010-12-21
申请号：US10582957
申请日：2004-12-13
申请人： Jayaseelan Daniel Doni , Hideki Kita , Naoki Kondo , Shunkichi Ueno , Tatsuki Ohji , Shuzo Kanzaki , Kazuhiko Koike , Takumi Suzawa , Tomohiko Nakanishi
发明人： Jayaseelan Daniel Doni , Hideki Kita , Naoki Kondo , Shunkichi Ueno , Tatsuki Ohji , Shuzo Kanzaki , Kazuhiko Koike , Takumi Suzawa , Tomohiko Nakanishi
IPC分类号： B01J23/00 , B01J21/00 , B01J20/00
CPC分类号： F01N3/2825 , B01J21/14 , B01J35/04 , B01J37/0009 , C01B33/26 , C04B35/195 , C04B38/0006 , C04B2111/0081 , F01N2370/02
摘要： The present invention provides a needle-shaped ceramic body and needle-shaped ceramic catalyst body in which a base material is a high specific surface area porous cordierite body that is stable at high temperatures, and also provides methods of producing this needle-shaped ceramic body and needle-shaped ceramic catalyst body. The present invention relates to a needle-shaped ceramic body and needle-shaped ceramic catalyst body in which a base material is a high temperature-stable, high specific surface area porous cordierite body comprising a porous structure having a prescribed porosity and formed of a needle-shaped cordierite crystal phase, and further relates to methods of producing this needle-shaped ceramic body and needle-shaped ceramic catalyst body, and by using porous cordierite constituted of needle-shaped crystals as a catalyst-supporting honeycomb structure, the present invention is able to inhibit sintering-induced reduction in the specific surface area. Since a honeycomb can be directly produced as the cordierite sinter itself, an inexpensive product can be provided through the simplifying the prior-art step of coating the interior of the honeycomb.
摘要翻译：本发明提供一种针状陶瓷体和针状陶瓷催化剂体，其中基材为高温稳定的高比表面积的多孔堇青石体，并且还提供了制造该针状陶瓷体的方法和针状陶瓷催化剂体。本发明涉及一种针状陶瓷体和针状陶瓷催化剂体，其中基材为高温稳定，高比表面积的多孔堇青石体，其包含具有预定孔隙率的多孔结构，并由针形成形堇青石结晶相，还涉及制造该针状陶瓷体和针状陶瓷催化剂体的方法，通过使用由针状晶体构成的多孔堇青石作为催化剂负载蜂窝结构体，本发明是能够抑制烧结诱导的比表面积的还原。由于蜂窝状体可以直接生产为堇青石烧结体本身，所以可以通过简化涂覆蜂窝内部的现有技术的步骤来提供便宜的产品。

25. 发明授权

US07723263B2 Ceramic support capable of supporting a catalyst, a catalyst-ceramic body and processes for producing same 失效
标题翻译：能够支撑催化剂的陶瓷载体，催化剂 - 陶瓷体及其制造方法
公开(公告)号：US07723263B2
公开(公告)日：2010-05-25
申请号：US11641770
申请日：2006-12-20
申请人： Kazuhiko Koike , Tomohiko Nakanishi , Takeshi Ueda , Masakazu Tanaka
发明人： Kazuhiko Koike , Tomohiko Nakanishi , Takeshi Ueda , Masakazu Tanaka
IPC分类号： B01J21/04
CPC分类号： B01D63/066 , B01D53/944 , B01D67/0041 , B01D71/024 , B01D71/025 , B01D2255/1021 , B01D2255/1025 , B01D2323/225 , B01D2325/10 , B01J21/14 , B01J23/42 , B01J23/464 , B01J23/63 , B01J35/04 , B01J37/0009 , B01J37/0203 , C04B35/195 , C04B38/00 , C04B2111/0081 , C04B2201/00 , C04B35/64 , C04B38/0006 , C04B38/0054 , C04B41/00 , C04B41/0063
摘要： A ceramic support capable of supporting a catalyst comprising a ceramic body having fine pores with a diameter or width up to 1000 times the ion diameter of a catalyst component to be supported on the surface of the ceramic body, the number of the fine pores being not less than 1×1011 pores per liter, is produced by introducing oxygen vacancies or lattice defects in the cordierite crystal lattice or by applying a thermal shock to form fine cracks.
摘要翻译：一种能够支撑催化剂的陶瓷载体，该催化剂包括具有细孔的陶瓷体，所述陶瓷体的直径或宽度高达待承载在陶瓷体表面上的催化剂组分的离子直径的1000倍，微孔的数量不是通过在堇青石晶格中引入氧空位或晶格缺陷或通过施加热冲击以形成细小裂纹而产生小于1×10 11个孔/升。

26. 发明授权

US07129193B2 Catalyst body 失效
公开(公告)号：US07129193B2
公开(公告)日：2006-10-31
申请号：US10364532
申请日：2003-02-12
申请人： Miho Ito , Jun Hasegawa , Tosiharu Kondo , Tomohiko Nakanishi
发明人： Miho Ito , Jun Hasegawa , Tosiharu Kondo , Tomohiko Nakanishi
IPC分类号： B01J23/00 , B01J35/00
CPC分类号： C04B35/46 , B01J23/58 , B01J23/652 , B01J23/6527 , B01J23/6562 , B01J35/002 , B01J37/0207 , C04B35/117 , C04B35/195 , C04B38/0067 , C04B38/0093 , C04B2111/0081 , C04B2235/3217 , C04B2235/3218 , C04B2235/3232 , C04B2235/3244 , C04B2235/3258 , C04B2235/3275 , C04B2235/3445 , C04B2235/349 , C04B38/0006 , C04B35/185 , C04B35/565 , C04B35/04
摘要： This invention aims at providing a catalyst body exhibiting a lower degradation of a catalyst due to thermal durability and capable of keeping higher catalyst performance for a long time. A catalyst component such as Pt is directly supported by Zr, W, etc, replacing elements inside a support such as Al of cordierite to provide a catalyst body without forming a coating layer. A combination of the catalyst component and the element inside the support is selected so that support strength is greater than 5 eV by simulation using a density functional method. Coarsening of catalyst particles can be suppressed and a high-performance catalyst body excellent in thermal durability can be obtained.

27. 发明申请

US20050003958A1 Ceramic support 失效
标题翻译：陶瓷支架
公开(公告)号：US20050003958A1
公开(公告)日：2005-01-06
申请号：US10876755
申请日：2004-06-28
申请人： Tomohiko Nakanishi , Kazuhiko Koike , Tomomi Hase
发明人： Tomohiko Nakanishi , Kazuhiko Koike , Tomomi Hase
IPC分类号： B01D53/86 , B01D53/94 , B01J21/06 , B01J21/14 , B01J21/16 , B01J23/56 , B01J23/652 , B01J32/00 , B01J35/04 , C04B35/195 , C04B38/00 , B01J23/00
CPC分类号： B01J21/14 , B01D53/94 , B01J21/063 , B01J23/56 , B01J23/6527 , B01J35/04 , C04B38/0006 , C04B2111/0081 , C04B35/195
摘要： This invention is directed to providing a high-performance ceramic support being capable of realizing early activation of a catalyst due to direct loading while maintaining the excellent properties of the substrate ceramic, and being less susceptible to heat deterioration, by specifying the kind and combination of optimal replacing elements and the replacing amount and the like. A ceramic support comprising a substrate ceramic containing Mg, Al, Si and O as constituent elements are solid-dissolved therein Ti and W as the second component. The proportion of cordierite crystal having solid-dissolved therein W and Ti is 25 mol % or more, whereby a high-performance directly supporting ceramic support is realized.
摘要翻译：本发明旨在提供一种高性能陶瓷载体，其能够通过直接负载来实现催化剂的早期活化，同时通过确定基体陶瓷的种类和组合来保持基板陶瓷的优异性能并且不易受热劣化最佳替代元素和替换量等。作为第二成分，含有Mg，Al，Si，O作为构成元素的基体陶瓷的陶瓷载体固溶化为Ti和W。其中固溶有W和Ti的堇青石晶体的比例为25摩尔％以上，从而实现了高性能的直接支撑陶瓷载体。

28. 发明授权

US06596372B2 Ceramic honeycomb structural body and methods of preparing the same 失效
标题翻译：陶瓷蜂窝结构体及其制备方法
公开(公告)号：US06596372B2
公开(公告)日：2003-07-22
申请号：US09729847
申请日：2000-12-06
申请人： Keiji Ito , Masanori Yamada , Tomohiko Nakanishi
发明人： Keiji Ito , Masanori Yamada , Tomohiko Nakanishi
IPC分类号： B32B312
CPC分类号： C04B41/009 , B01J35/04 , C04B38/0006 , C04B41/5024 , C04B2111/0081 , F01N3/2828 , Y10T428/131 , Y10T428/24149 , C04B41/0072 , C04B41/4539 , C04B41/4578 , C04B35/195 , C04B38/007
摘要： A ceramic honeycomb structural body, and method for preparing the same, which can satisfactorily support a catalyst and can demonstrate superior mechanical strength, even if far thinner walls are used. The structural body comprises lattice walls formed by a large number of cells which are channels for a fluid and a peripheral wall which covers at least the circumference of the lattice walls. The outer peripheral portion of the lattice walls located in the vicinity of the peripheral wall (area B) contains a densified portion of smaller porosity than that of an inner peripheral portion, of the lattice walls, which is located inside the outer peripheral portion (area A).
摘要翻译：陶瓷蜂窝结构体及其制备方法，即使使用更薄的壁，也能够令人满意地支撑催化剂并且能够表现出优异的机械强度。结构体包括由大量细胞形成的晶格壁，所述细胞是流体的通道和至少覆盖格子壁周长的周壁。位于周壁（区域B）附近的格子壁的外周部包含位于外周部（面积）内的格子壁的内周部的孔隙率小的致密化部分一个）。

29. 发明授权

US06589627B1 Cordierite honeycomb structural body and its production process 失效
标题翻译：堇青石蜂窝结构体及其生产工艺
公开(公告)号：US06589627B1
公开(公告)日：2003-07-08
申请号：US09526630
申请日：2000-03-16
申请人： Tomohiko Nakanishi , Masanori Yamada , Yosiyasu Andou
发明人： Tomohiko Nakanishi , Masanori Yamada , Yosiyasu Andou
IPC分类号： B32B312
CPC分类号： C04B35/6365 , C04B38/0645 , C04B2111/0081 , C08K3/34 , C08K7/00 , Y10T428/131 , Y10T428/1352 , Y10T428/24149 , Y10T428/24661 , Y10T428/24744 , C04B35/195 , C04B38/0006
摘要： There is provided a cordierite honeycomb structural body that allows the thickness of the cell walls to be reduced and heat capacity to be decreased by improving the fluidity of the molding material when passing through a mold for extrusion molding while maintaining the shape retention of the molding material. A water-soluble cellulose ether is used as a binder that is added to a cordierite-converted starting material. This water-soluble cellulose ether contains methoxyl groups substituted for the cellulose hydroxyl groups within the range of a substitution rate of 27.5 to 31.5%, does not contain hydroxypropoxyl groups and hydroxyethoxyl groups in an amount greater than the amount of unavoidable impurities (0.1 wt %), and has a viscosity in a 2 wt % aqueous solution at 20° C. of less than 8000 centipoise. As a result of adding this water-soluble cellulose ether in an amount of 3 wt % to 10 wt % relative to the amount of the cordierite-converted starting material, frictional resistance is decreased allowing improvement of fluidity while maintaining adequate hardness of the molding material.
摘要翻译：提供了一种堇青石蜂窝结构体，通过提高成形材料在通过挤出成型用模具时的流动性，能够降低单元壁的厚度，降低热容量，同时保持成型材料的形状保持性。使用水溶性纤维素醚作为添加到堇青石转化的原料中的粘合剂。该水溶性纤维素醚在取代率为27.5〜31.5％的范围内含有取代纤维素羟基的甲氧基，不含羟基丙氧基和羟基乙氧基，其量大于不可避免的杂质（0.1重量％），并且在20℃的2重量％水溶液中具有小于8000厘泊的粘度。作为相对于堇青石转化原料的量添加3重量％〜10重量％的水溶性纤维素醚的结果，摩擦阻力降低，从而提高流动性，同时保持成型材料的适当的硬度。

30. 发明授权

US4434117A Method for producing a cordierite body 失效
标题翻译：堇青石体的制造方法
公开(公告)号：US4434117A
公开(公告)日：1984-02-28
申请号：US250150
申请日：1981-04-02
申请人： Kazuhiro Inoguchi , Tomohiko Nakanishi , Mitsuru Asano
发明人： Kazuhiro Inoguchi , Tomohiko Nakanishi , Mitsuru Asano
IPC分类号： C04B35/195 , C04B35/18
CPC分类号： C04B35/195
摘要： A method for producing a cordierite body having a lower coefficient of thermal expansion and excellent thermal shock resistance which comprises the steps of mixing and kneading a batch raw material containing plate-shaped talc particles and non-plate shaped particles of other ceramic material, anisostatically forming the mixed batch raw material so as to impart a planar orientation to the plate-shaped talc particles and drying and firing the obtained formed body. By firing the plate-shaped talc particles, the shrinkage of the cordierite body can be decreased.
摘要翻译：一种具有较低的热膨胀系数和优异的耐热冲击性的堇青石体的制造方法，其特征在于，将含有板状滑石粒子和其他陶瓷材料的非平板状粒子的批料原料混合，混合批料原料，以赋予板状滑石颗粒平面取向，并干燥并焙烧得到的成形体。通过烧制板状滑石颗粒，可以减少堇青石体的收缩。

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