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公开(公告)号:US20050233897A1
公开(公告)日:2005-10-20
申请号:US10519980
申请日:2003-07-03
申请人: Hirohisa Tanaka , Isao Tan , Mari Uenishi , Nobuhiko Kajita , Masashi Taniguchi
发明人: Hirohisa Tanaka , Isao Tan , Mari Uenishi , Nobuhiko Kajita , Masashi Taniguchi
IPC分类号: B01D53/86 , B01D53/94 , B01J21/04 , B01J21/06 , B01J23/00 , B01J23/63 , B01J23/656 , B01J23/68 , B01J23/89 , B01J35/00 , B01J37/02 , B01J37/03 , B01J37/08 , C01G55/00 , B01J23/10
CPC分类号: B01J37/033 , B01D53/945 , B01D2255/1025 , B01D2255/402 , B01J21/04 , B01J21/066 , B01J23/002 , B01J23/63 , B01J23/6562 , B01J23/688 , B01J23/894 , B01J23/8946 , B01J23/8986 , B01J35/002 , B01J37/0244 , B01J37/0248 , B01J37/08 , B01J2523/00 , C01G55/002 , C01P2002/34 , C01P2002/54 , C01P2004/80 , C01P2006/12 , C01P2006/80 , Y02T10/22 , B01J2523/3706 , B01J2523/3712 , B01J2523/3725 , B01J2523/72 , B01J2523/822 , B01J2523/842 , B01J2523/31 , B01J2523/3718 , B01J2523/36
摘要: To provide an exhaust gas purifying catalyst which can maintain the catalytic activity of Rh at a high level over a long time and can achieve satisfactory emission control performance, an exhaust gas purifying catalyst is prepared so as to contain a composite oxide having a perovskite structure represented by the general formula (1): ABRhO3 (1) wherein A represents at least one element selected from rare-earth elements essentially including one or more rare-earth elements each having a valence of 3 as the only valence and arbitrarily including Ce and/or Pr; and B represents at least one element selected from transition elements excluding Co, Rh and the rare-earth elements, and Al.
摘要翻译: 为了提供能够长时间保持Rh的高水平的催化活性并能够达到令人满意的排放控制性能的废气净化催化剂,制备废气净化催化剂,以含有代表性的钙钛矿结构的复合氧化物 通过通式(1):<?in-line-formula description =“In-line Formulas”end =“lead”?> ABRhO 3 SUB>(1)<?in-line-formula description =“在线式”末端=“尾”→其中A表示选自稀土元素中的至少一种元素,其基本上包括一种或多种稀土元素,其各自的价数为3,并且任意包括Ce 和/或Pr; B表示选自Co,Rh和稀土类元素以外的过渡元素中的至少一种元素,Al表示。
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公开(公告)号:US20100093526A1
公开(公告)日:2010-04-15
申请号:US12449104
申请日:2008-01-15
申请人: Hirohisa Tanaka , Mari Uenishi , Masashi Taniguchi , Ryouhei Iwasaki , Mareo Kimura , Satoshi Matsueda
发明人: Hirohisa Tanaka , Mari Uenishi , Masashi Taniguchi , Ryouhei Iwasaki , Mareo Kimura , Satoshi Matsueda
IPC分类号: B01J23/745 , B01J23/44
CPC分类号: B01J23/8946 , B01D53/945 , B01D2255/1023 , B01D2255/2047 , B01D2255/20738 , B01D2255/2092 , B01J23/002 , B01J23/005 , B01J23/78 , B01J37/03 , B01J37/036 , B01J37/08 , B01J37/16 , B01J2523/00 , Y02T10/22
摘要: Disclosed is a catalyst composition containing a composite oxide. The composite oxide contains a transition element (excluding platinum group elements) which is transformed into a solid solution in the composite oxide under an oxidizing atmosphere and is precipitated from the composite oxide under a reducing atmosphere.
摘要翻译: 公开了含有复合氧化物的催化剂组合物。 复合氧化物含有在氧化气氛下转变成复合氧化物中的固溶体的过渡元素(不含铂族元素),并在还原气氛下从复合氧化物中析出。
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公开(公告)号:US20070249497A1
公开(公告)日:2007-10-25
申请号:US10583153
申请日:2004-12-15
申请人: Hirohisa Tanaka , Isao Tan , Mari Uenishi , Masashi Taniguchi
发明人: Hirohisa Tanaka , Isao Tan , Mari Uenishi , Masashi Taniguchi
CPC分类号: B01D53/945 , B01D2255/402 , B01J23/002 , B01J23/58 , B01J23/63 , B01J23/8946 , B01J35/002 , B01J35/1009 , B01J35/1014 , B01J2523/00 , B82Y30/00 , C01G55/002 , C01P2002/34 , C01P2002/72 , C01P2004/03 , C01P2004/04 , C01P2004/64 , C01P2006/12 , Y02T10/22 , B01J2523/25 , B01J2523/47 , B01J2523/822 , B01J2523/24 , B01J2523/31 , B01J2523/828 , B01J2523/23 , B01J2523/48 , B01J2523/821 , B01J2523/842 , B01J2523/3706 , B01J2523/22
摘要: A catalyst composition which prevents deterioration due to grain growth of Rh and/or Pt, includes a perovskite-type composite oxide represented by the following general formula (1): A1−xA′xB1−(y+z)B′yNzO3 (1) wherein A represents at least one element selected from alkaline earth metals; A′ represents at least one element selected from rare earth elements; B represents at least one element selected from Ti, Zr, and Hf; B′ represents at least one element selected from transition elements (excluding rare earth elements, Ti, Zr, Hf, Rh, and Pt) and Al; N represents at least one element selected from Rh and Pt; x represents an atomic ratio satisfying the following condition: 0≦x≦0.4; y represents an atomic ratio satisfying the following condition: 0≦y
摘要翻译: 防止由Rh和/或Pt的晶粒生长引起的劣化的催化剂组合物包括由以下通式(1)表示的钙钛矿型复合氧化物:<?在线配方说明=“在线配方”末端 =“铅”→A 1-x A''x B 1-(y + z)B'y (1)<?in-line-formula description =“In-line Formulas”end =“tail”?>其中A表示至少 一种选自碱土金属的元素; A'表示选自稀土元素中的至少一种元素; B表示选自Ti,Zr和Hf中的至少一种元素; B'表示选自过渡元素(不包括稀土元素,Ti,Zr,Hf,Rh和Pt)和Al的至少一种元素; N表示选自Rh和Pt中的至少一种元素; x表示满足以下条件的原子比:0 <= x <= 0.4; y表示满足以下条件的原子比:0 <= y <0.5; z表示满足以下条件的原子比:0
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公开(公告)号:US07576032B2
公开(公告)日:2009-08-18
申请号:US10583153
申请日:2004-12-15
申请人: Hirohisa Tanaka , Isao Tan , Mari Uenishi , Masashi Taniguchi
发明人: Hirohisa Tanaka , Isao Tan , Mari Uenishi , Masashi Taniguchi
CPC分类号: B01D53/945 , B01D2255/402 , B01J23/002 , B01J23/58 , B01J23/63 , B01J23/8946 , B01J35/002 , B01J35/1009 , B01J35/1014 , B01J2523/00 , B82Y30/00 , C01G55/002 , C01P2002/34 , C01P2002/72 , C01P2004/03 , C01P2004/04 , C01P2004/64 , C01P2006/12 , Y02T10/22 , B01J2523/25 , B01J2523/47 , B01J2523/822 , B01J2523/24 , B01J2523/31 , B01J2523/828 , B01J2523/23 , B01J2523/48 , B01J2523/821 , B01J2523/842 , B01J2523/3706 , B01J2523/22
摘要: A catalyst composition which prevents deterioration due to grain growth of Rh and/or Pt, includes a perovskite-type composite oxide represented by the following general formula (1): A1−xA′xB1−(y+z)B′yNzO3 (1) wherein A represents at least one element selected from alkaline earth metals; A′ represents at least one element selected from rare earth elements; B represents at least one element selected from Ti, Zr, and Hf; B′ represents at least one element selected from transition elements (excluding rare earth elements, Ti, Zr, Hf, Rh, and Pt) and Al; N represents at least one element selected from Rh and Pt; x represents an atomic ratio satisfying the following condition: 0≦x≦0.4; y represents an atomic ratio satisfying the following condition: 0≦y
摘要翻译: 防止由Rh和/或Pt的晶粒生长引起的劣化的催化剂组合物包括由以下通式(1)表示的钙钛矿型复合氧化物:<?在线配方说明=“在线配方”末端 =“lead”→A1-xA'xB1-(y + z)B'yNzO3(1)<?在线公式描述=“在线公式”end =“tail”?>其中A表示至少 一种选自碱土金属的元素; A'表示选自稀土元素中的至少一种元素; B表示选自Ti,Zr和Hf中的至少一种元素; B'表示选自过渡元素(不包括稀土元素,Ti,Zr,Hf,Rh和Pt)和Al的至少一种元素; N表示选自Rh和Pt中的至少一种元素; x表示满足以下条件的原子比:0 <= x <= 0.4; y表示满足以下条件的原子比:0 <= y <0.5; z表示满足以下条件的原子比:0
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公开(公告)号:US20070292329A1
公开(公告)日:2007-12-20
申请号:US11667083
申请日:2005-10-31
申请人: Hirohisa Tanaka , Isao Tan , Mari Uenishi , Masashi Taniguchi
发明人: Hirohisa Tanaka , Isao Tan , Mari Uenishi , Masashi Taniguchi
CPC分类号: B01J37/031 , B01D53/945 , B01D2255/102 , B01D2255/402 , B01J23/002 , B01J23/02 , B01J23/10 , B01J23/58 , B01J23/63 , B01J23/83 , B01J23/894 , B01J37/033 , B01J2523/00 , C01G23/002 , C01G25/006 , C01G49/0054 , C01G51/006 , C01G55/002 , C01P2002/34 , C01P2002/52 , C01P2002/54 , C01P2004/84 , Y02T10/22 , B01J2523/36 , B01J2523/3712 , B01J2523/48 , B01J2523/828 , B01J2523/3706 , B01J2523/824 , B01J2523/842 , B01J2523/845 , B01J2523/23 , B01J2523/47 , B01J2523/822 , B01J2523/3725
摘要: An object of the present invention is to provide a method for producing a noble metal-containing heat-resistant oxide having excellent durability under a high temperature atmosphere According to the method for producing a noble metal-containing heat-resistant oxide of the present invention, a coordination element material containing coordination elements is blended and the obtained first precursor composition is subjected to a first heat treatment to form a first heat-treated composition (crystal lattice) such as a perovskite-type composite oxide or a fluorite-type composite oxide. Then, a noble metal element material containing a noble metal element such as Pt, Rh or Pd is blended with the first heat-treated composition and the secondary precursor composition thus obtained is subjected to a second heat treatment (baking) at a temperature which is higher than that of the first heat treatment and is 600° C. or higher.
摘要翻译: 本发明的目的是提供一种在高温气氛下具有优异的耐久性的含贵金属的耐热氧化物的制造方法。根据本发明的含贵金属的耐热氧化物的制造方法, 混合含有配位元素的配位元素材料,对所得到的第一前体组合物进行第一次热处理,形成第一热处理组合物(晶格),例如钙钛矿型复合氧化物或萤石型复合氧化物。 然后,将含有贵金属元素如Pt,Rh或Pd的贵金属元素材料与第一热处理组合物共混,并将得到的二次前体组合物在如下温度下进行第二次热处理(烘烤) 高于第一热处理,为600℃以上。
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公开(公告)号:US20090011932A1
公开(公告)日:2009-01-08
申请号:US12204647
申请日:2008-09-04
申请人: Satoshi MATSUEDA , Mareo Kimura , Hirohisa Tanaka , Mari Uenishi
发明人: Satoshi MATSUEDA , Mareo Kimura , Hirohisa Tanaka , Mari Uenishi
IPC分类号: B01J23/58
CPC分类号: B01J23/58 , B01D2255/1021 , B01D2255/40 , B01J21/005 , B01J23/002 , B01J23/005 , B01J35/0006 , B01J37/04 , B01J2523/00 , B01J2523/23 , B01J2523/31 , B01J2523/22
摘要: An object of the present invention is to provide an exhaust gas-purifying catalyst that is less prone to cause a decrease in its activity even when used at high temperatures in an atmosphere whose oxygen concentration is high. An exhaust gas-purifying catalyst of the present invention includes a composite oxide of alkaline-earth metal and aluminum, and platinum, wherein at least a part of the composite oxide and at least a part of the platinum forms a solid solution.
摘要翻译: 本发明的目的是提供即使在氧浓度高的气氛中在高温下使用时也不易引起其活性降低的废气净化用催化剂。 本发明的废气净化催化剂包括碱土金属和铝的复合氧化物和铂,其中至少一部分复合氧化物和至少一部分铂形成固溶体。
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公开(公告)号:US08097556B2
公开(公告)日:2012-01-17
申请号:US12204647
申请日:2008-09-04
申请人: Satoshi Matsueda , Mareo Kimura , Hirohisa Tanaka , Mari Uenishi
发明人: Satoshi Matsueda , Mareo Kimura , Hirohisa Tanaka , Mari Uenishi
IPC分类号: B01J23/58
CPC分类号: B01J23/58 , B01D2255/1021 , B01D2255/40 , B01J21/005 , B01J23/002 , B01J23/005 , B01J35/0006 , B01J37/04 , B01J2523/00 , B01J2523/23 , B01J2523/31 , B01J2523/22
摘要: An object of the present invention is to provide an exhaust gas-purifying catalyst that is less prone to cause a decrease in its activity even when used at high temperatures in an atmosphere whose oxygen concentration is high. An exhaust gas-purifying catalyst of the present invention includes a composite oxide of alkaline-earth metal and aluminum, and platinum, wherein at least a part of the composite oxide and at least a part of the platinum forms a solid solution.
摘要翻译: 本发明的目的是提供即使在氧浓度高的气氛中在高温下使用时也不易引起其活性降低的废气净化用催化剂。 本发明的废气净化催化剂包括碱土金属和铝的复合氧化物和铂,其中至少一部分复合氧化物和至少一部分铂形成固溶体。
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公开(公告)号:US07081430B2
公开(公告)日:2006-07-25
申请号:US10481572
申请日:2002-06-18
申请人: Mari Uenishi , Isao Tan , Hirohisa Tanaka
发明人: Mari Uenishi , Isao Tan , Hirohisa Tanaka
CPC分类号: B01J21/066 , B01D53/945 , B01J21/04 , B01J23/10 , B01J23/63 , B01J23/6484 , B01J35/04 , B01J37/0228 , B01J37/0244 , B01J37/0248 , B01J37/033 , Y02T10/22
摘要: An exhaust gas purifying catalyst that provides the excellent low-temperature activity and also develops the good catalytic activity of rhodium to produce a good purifying performance economically. The exhaust gas purifying catalyst comprises an alumina on which rhodium and platinum are previously supported; a zirconium complex oxide on which rhodium and platinum are previously supported; and a cerium complex oxide on which platinum is previously supported.
摘要翻译: 一种提供优异的低温活性并且还具有良好的铑催化活性的废气净化催化剂,经济地产生良好的净化性能。 废气净化催化剂包括其上预先负载有铑和铂的氧化铝; 预先负载有铑和铂的锆复合氧化物; 和其中预先支持铂的铈复合氧化物。
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公开(公告)号:US06808687B1
公开(公告)日:2004-10-26
申请号:US09577080
申请日:2000-05-23
申请人: Mari Uenishi , Isao Tan , Hirohisa Tanaka
发明人: Mari Uenishi , Isao Tan , Hirohisa Tanaka
IPC分类号: B01J2104
CPC分类号: B01J37/0244 , B01D53/945 , B01J21/04 , B01J21/06 , B01J23/002 , B01J23/10 , B01J23/40 , Y02T10/22
摘要: A catalytic converter for cleaning exhaust gas includes a first coating layer formed on a heat-resistant support, and a second coating layer formed on the first coating layer. The first coating layer contains alumina which supports palladium. The second coating layer contains Ce—Zr complex oxide which coexistently carries platinum and rhodium, and Zr—Ce complex oxide which differs in composition from the Ce—Zr complex oxide and which coexistently carries platinum and rhodium.
摘要翻译: 一种用于净化废气的催化转化器包括形成在耐热载体上的第一涂层和形成在第一涂层上的第二涂层。 第一涂层含有负载钯的氧化铝。 第二涂层含有共同携带铂和铑的Ce-Zr复合氧化物,以及组成与Ce-Zr复合氧化物不同的共同携带铂和铑的Zr-Ce复合氧化物。
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公开(公告)号:US06620762B2
公开(公告)日:2003-09-16
申请号:US09902570
申请日:2001-07-12
申请人: Isao Tan , Mari Uenishi , Hirohisa Tanaka
发明人: Isao Tan , Mari Uenishi , Hirohisa Tanaka
IPC分类号: B01J2363
CPC分类号: B01D53/945 , B01D53/9454 , B01J23/10 , B01J23/63 , B01J37/0244 , Y02T10/22
摘要: To provide an exhaust gas purifying catalyst that can develop good catalytic activity even in high-temperature endurance and also produce excellent low-temperature property, a coating layer having an outside layer and an inside layer is formed on a catalyst carrier, the outside layer being made to contain a noble metal previously supported on a heat-resisting oxide and a cerium complex oxide, and the inside layer being made to contain a heat-resisting oxide on which no noble metal is supported.
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