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1. 发明专利

JP2007307485A Nox storage reduction type catalyst 有权
标题翻译： NOX储存型催化剂
公开(公告)号：JP2007307485A
公开(公告)日：2007-11-29
申请号：JP2006139195
申请日：2006-05-18
申请人： Toyota Central Res & Dev Lab Inc , 株式会社豊田中央研究所
发明人： MATSUNAGA SHINICHI , TANAKA TOSHIYUKI , KATO YUKIKAZU
IPC分类号： B01J23/89 , B01D53/94 , F01N3/08 , F01N3/10 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To provide an NOx storage reduction type catalyst having a sufficiently high NOx storage capability in high temperature regions such as 400°C or higher even if an amount of noble metals supported is small, in particular, even in case of using neither platinum nor palladium. SOLUTION: The NOx storage reduction type catalyst is provided with hematite of a particle diameter of 3 nm-20 μm, an alkali metal, rhodium, and an oxide carrier comprising a metal oxide hard to form a complex oxide with iron. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：即使在贵金属的量少的情况下，即使在400℃以上的高温区域中也具有足够高的NOx储存能力的NOx存储还原型催化剂，特别是即使在不使用铂或钯的情况。解决方案：NOx储存还原型催化剂具有粒径为3nm-20μm的赤铁矿，碱金属，铑和包含难以与铁形成复合氧化物的金属氧化物的氧化物载体。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2005342580A Catalyst carrier and its production method 审中-公开
标题翻译：催化载体及其生产方法
公开(公告)号：JP2005342580A
公开(公告)日：2005-12-15
申请号：JP2004163009
申请日：2004-06-01
申请人： Toyota Central Res & Dev Lab Inc , 株式会社豊田中央研究所
发明人： IMAGAWA HARUO , SUDA AKIHIKO , MATSUNAGA SHINICHI , TANAKA TOSHIYUKI
IPC分类号： B01D53/86 , B01J21/06 , B01J32/00 , B01J37/03
摘要： PROBLEM TO BE SOLVED: To further make the mixed state of respective metal oxides uniform in a catalyst carrier made of a compounded oxide consisting of a plurality of types of metal oxides. SOLUTION: A starting material solution in which a plurality of types of metal ions including aluminum ion are dissolved is added to a neutralization solution containing an alkaline substance in an amount equivalent or higher to neutralize the acidic ions in the starting material solution and the co-precipitated oxide precursors are fired to obtain a compounded oxide. Since an excess amount of the neutralization solution constantly exists to the starting material solution, the oxide precursors of the respective metals are almost simultaneously precipitated and deposited. Accordingly, production of a localized part where alumina unevenly exists can be suppressed and existence of aluminum atoms in a high concentration can be suppressed even in the produced localized part and therefore the content of aluminum atoms in the localized part is controlled to be 90% by atom or less. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了进一步使由各种金属氧化物组成的复合氧化物制成的催化剂载体中的各种金属氧化物的混合状态均匀。解决方案：将含有多种类型的包含铝离子的金属离子溶解在其中的原料溶液加入到含有相当于或更高量的碱性物质的中和溶液中以中和原料溶液中的酸性离子，共沉淀氧化物前体被烧制以获得复合氧化物。由于过量的中和溶液不断地存在于原料溶液中，所以各金属的氧化物前体几乎同时沉淀沉积。因此，可以抑制氧化铝不均匀存在的局部化部分的制造，即使在制造的局部化部分中也可以抑制高浓度的铝原子的存在，因此局部化部分中的铝原子的含量被控制为90％原子或更少。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2004122023A Heat treatment method for catalyst for cleaning exhaust gas 审中-公开
公开(公告)号：JP2004122023A
公开(公告)日：2004-04-22
申请号：JP2002291204
申请日：2002-10-03
申请人： Toyota Central Res & Dev Lab Inc , 株式会社豊田中央研究所
发明人： YONEKURA HIROTAKA , MORIKAWA AKIRA , SUDA AKIHIKO , MATSUNAGA SHINICHI
IPC分类号： F01N3/10 , B01D53/86 , B01J23/46 , B01J23/96 , B01J37/14 , B01J38/14 , F01N3/20
摘要： PROBLEM TO BE SOLVED: To prevent reduction of an activity by inhibiting grain growth of Rh and to recover the activity of a catalyst with the lowered activity in the catalyst for cleaning exhaust gas which is composed of a carrier containing at least ZrO 2 carrying at least Rh. SOLUTION: The catalyst is subjected to heat treatment at a temperature of 850-1,100°C under an atmosphere having a partial pressure of oxygen equivalent to an atmosphere. A production reaction and a decomposition reaction of Rh 2 O 3 approach the equilibrium state under the atmosphere having the partial pressure of oxygen equivalent to the atmosphere at 850°C or higher and the produced Rh species are fixed to the carrier in the extremely fine state. COPYRIGHT: (C)2004,JPO

4. 发明专利

JP2003181290A EXHAUST GAS CLEANING CATALYST AND METHOD OF PRODUCING THE SAME 审中-公开
公开(公告)号：JP2003181290A
公开(公告)日：2003-07-02
申请号：JP2001381898
申请日：2001-12-14
申请人： TOYOTA MOTOR CORP , TOYOTA CENTRAL RES & DEV
发明人： KUNO HISASHI , TAMURA HIROSHI , MATSUNAGA SHINICHI , TANABE TOSHITAKA
IPC分类号： F01N3/10 , B01D53/86 , B01D53/94 , B01J23/652 , B01J23/656 , B01J32/00 , B01J35/02 , B01J37/02 , B01J37/16
摘要： PROBLEM TO BE SOLVED: To provide an exhaust gas cleaning catalyst which is capable of suppressing sintering of Pt contained as a catalyst component and which exhibits high catalytic performance stably with time. SOLUTION: The exhaust gas cleaning catalyst is characterized in that Pt is supported on an oxide carrier on which at least one kind selected from Mo, W and Re is supported. Preferably, the oxide carrier contains Al 2 O 3 and the 4f orbital electron of the supported Pt has a binding energy of ≥72.5 eV. Preferably, the exhaust gas cleaning catalyst is produced by reductively depositing Pt on the oxide carrier on which at least one kind selected from Mo, W and Re is supported. COPYRIGHT: (C)2003,JPO

5. 发明专利

JP2003020227A Fine mixed oxide powder, production method thereor and catalyst 审中-公开
标题翻译：精细混合氧化粉，生产方法及催化剂
公开(公告)号：JP2003020227A
公开(公告)日：2003-01-24
申请号：JP2001201240
申请日：2001-07-02
申请人： Toyota Central Res & Dev Lab Inc , 株式会社豊田中央研究所
发明人： HATANAKA YOSHIO , SUDA AKIHIKO , IMAGAWA HARUO , MORIKAWA AKIRA , MATSUNAGA SHINICHI , YAMAMOTO TOSHIO , SUZUKI TADASHI
IPC分类号： F01N3/08 , B01D53/86 , B01D53/94 , B01J21/06 , B01J23/44 , B01J23/58 , B01J23/63 , B01J35/10 , C01G25/02 , F01N3/10 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To produce multiple oxide powder which has a large specific surface area and a large fine pore volume even after endurance at a high temperature, and in which, even when used as a catalyst carrying noble metals, the growth of the grains of the noble metals can be suppressed after endurance at a high temperature. SOLUTION: The powder consists of a multiple oxide of Zn oxide and the oxide of a metal M which is not allowed to enter into solid solution with the Zr oxide, and in which the Zr oxide and the oxide of metal M are uniformly dispersed on an nm scale. Since different oxides are acted as mutual barriers, sintering is suppressed. Further, fine pores formed between the oxides are made into mesofine pores on an nm scale, and a large specific surface area and a large fine pore volume can be realized.
摘要翻译：要解决的问题：为了生产即使耐高温下具有大的比表面积和大的细孔容积的多种氧化物粉末，并且其中即使当用作携带贵金属的催化剂时，晶粒的生长的贵金属能够在高温下耐久性之后被抑制。解决方案：粉末由Zn氧化物的多重氧化物和金属M的氧化物组成，不允许与Zr氧化物一起进入固溶体，其中Zr氧化物和金属M的氧化物均匀分散在 nm刻度。由于不同的氧化物作为相互屏障，烧结被抑制。此外，在氧化物之间形成的细孔被制成纳米级的中孔，可以实现大的比表面积和大的细孔容积。

6. 发明专利

JP2002239383A NOx SORPTION AND REDUCTION CATALYST AND METHOD FOR USING THE SAME 失效
公开(公告)号：JP2002239383A
公开(公告)日：2002-08-27
申请号：JP2001039915
申请日：2001-02-16
申请人： TOYOTA CENTRAL RES & DEV
发明人： TAKAHASHI NAOKI , MATSUNAGA SHINICHI , ANDOU CHIWA , TSUJI RYUSUKE , TAKADA YASUO
IPC分类号： F01N3/10 , B01D53/94 , B01J20/08 , B01J23/58 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To provide an NOx sorption and reduction catalyst which has a high NOx sorption capacity even after a high-temperature durability test (750 deg.C×5 hr), can sufficiently sorb NOx in a temperature range above 600 deg.C, and can exhibit a high NOx reduction rate and to provide a method for using the same. SOLUTION: This catalyst is prepared by infiltrating a noble metal and an NOx sorbent into a coat layer based on a support comprising a compound oxide having a magnesia/alumina spinel structure and a specific surface area of at least 50 m2/g and containing 8-20 wt.% alumina binder. The support is strongly basic and lowly reactive with the sorbent, so that the consumption of the sorbent by the reaction with the support can be reduced. Even when the sorbent undergoes a volume change after repeated NOx sorption and reduction, the alumina binder prevents the coat layer form being peeled.

7. 发明专利

JP2007268472A Method for manufacturing catalyst for purifying exhaust gas and catalyst for purifying exhaust gas 有权
标题翻译：制造用于净化排气的催化剂的方法和用于净化排气的催化剂
公开(公告)号：JP2007268472A
公开(公告)日：2007-10-18
申请号：JP2006099586
申请日：2006-03-31
申请人： Toyota Central Res & Dev Lab Inc , 株式会社豊田中央研究所
发明人： IMAGAWA HARUO , TANAKA TOSHIYUKI , MATSUNAGA SHINICHI
IPC分类号： B01D53/86 , B01D53/94 , B01J23/42 , F01N3/08 , F01N3/10 , F01N3/28
CPC分类号： Y02C20/10
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a catalyst for purifying exhaust gas for easily and sufficiently controlling the carriage and distribution of noble metals, and for making a multi-metal oxide carrier carry noble metals by distributing it in a high level, and for sufficiently suppressing the exudation of NOx in the case of rich spike, and for efficiently and surely manufacturing the catalyst for developing sufficient NOx occulusion performance even in the case of long time use and a catalyst for purifying exhaust gas to be acquired by the manfufacturing method. SOLUTION: This method for manufacturing a catalyst for purifying exhaust gas including a multi-metal oxide carrier containing two or more types of multi-metal oxides and noble metals carried by the multi-metal oxide carrier comprises a process for acquiring an organic attached carrier by preferentially attaching an organic substance to a portion of metallic oxide in the multimetal oxide carrier; a process for acquiring a catalyst precursor by making the organic substance attached carrier carry the noble metals; and a process for acquiring the catalyst for purifying exhaust gas by sintering the catalyst precursor. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决方案：提供一种用于制造用于净化废气的催化剂的方法，用于容易且充分地控制载体和贵金属的分布，并且为了制备多金属氧化物载体，通过将贵金属分布在并且为了充分抑制在浓度高的情况下的NOx的渗出，并且即使在长时间使用时也能有效且可靠地制造用于显示足够的NOx掩蔽性能的催化剂，以及用于净化排气的催化剂通过制造方法。解决方案：该制造用于净化废气的催化剂的方法包括由多金属氧化物载体承载的含有两种或更多种多金属氧化物和贵金属的多金属氧化物载体，包括获得有机物的方法通过优先将有机物质附着到多金属氧化物载体中的一部分金属氧化物上; 通过使有机物质附着载体携带贵金属来获得催化剂前体的方法; 以及通过烧结催化剂前体获得用于净化废气的催化剂的方法。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2006223949A CATALYST FOR CLEANING EXHAUST GAS AND ITS PRODUCTION METHOD 审中-公开
公开(公告)号：JP2006223949A
公开(公告)日：2006-08-31
申请号：JP2005038292
申请日：2005-02-15
申请人： TOYOTA CENTRAL RES & DEV
发明人： IMAGAWA HARUO , TANAKA TOSHIYUKI , MATSUNAGA SHINICHI
IPC分类号： B01J23/42 , B01D53/94 , B01J23/58 , B01J37/03
摘要： PROBLEM TO BE SOLVED: To control a support distribution of a noble metal when a complex oxide for which a plurality of oxides are mixed at a nanolevel is used as a carrier. SOLUTION: At the time of preparing the complex oxide for which an aluminum-based oxide and other oxides different from the aluminum-based oxide are mixed at a nanolevel, the basicity of the aluminum-based oxide is adjusted and an ionic noble metal compound solution is brought into contact with the compound oxide so as to support the noble metal compound and thereafter performs firing, thereby the support distribution of the noble metal with respect to the aluminum-based oxide and the other oxide is controlled. The support distribution of the noble metal can be freely adjusted according to the difference in the basicity of the aluminum-based oxide and the other oxides. COPYRIGHT: (C)2006,JPO&NCIPI

9. 发明专利

JP2006102628A Sulfur oxide absorber and its manufacturing method, and emission gas purifying facility 有权
标题翻译：硫氧化物吸收器及其制造方法和排放气体净化设备
公开(公告)号：JP2006102628A
公开(公告)日：2006-04-20
申请号：JP2004292539
申请日：2004-10-05
申请人： Toyota Central Res & Dev Lab Inc , 株式会社豊田中央研究所
发明人： TANAKA TOSHIYUKI , ANDOU CHIWA , MATSUNAGA SHINICHI
IPC分类号： B01J20/04 , B01D53/50 , B01D53/81 , B01D53/94 , B01J23/42 , F01N3/08
CPC分类号： Y02A50/2348 , Y02T10/24
摘要： PROBLEM TO BE SOLVED: To provide a means of increasing an absorption capacity of SO x , and at the same time, shifting a temperature where SO x is discharged in rich atmosphere to a higher-temperature region. SOLUTION: The constitution comprises a carrier 2 having at least the same specific surface area or more compared to MgAl 2 O 4 , a solid solution suppressing layer 4 formed at least on the surface of the carrier 2 to suppress the solid solution of Mg to the carrier, at least MgO 5 supported on the solid solution suppressing layer 4, and an oxidation catalyst metal 6 supported on the solid solution suppressing layer 4. Since the carrier having the same specific surface area or more compared to MgAl 2 O 4 is used, the absorption capacity of SO x increases remarkably. Further, the presence of MgO enables the keeping of the condition that SO x is absorbed up to the high-temperature region of about 600°C even in rich atmosphere to suppress the discharge. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供增加SO x 的吸收容量的方法，并且同时将SO x 的温度移位到丰富的气氛到更高的温度区域。＆lt; P＆gt;解决方案：该结构包括与MgAl 2 SB 4 O 4 / SB 4相比具有至少相同的比表面积或更大的载体2，形成在至少在载体2的表面上抑制Mg对载体的固溶，至少载持在固溶抑制层4上的MgO 5和负载在固溶抑制层4上的氧化催化剂金属6。与MgAl O 4 相比，具有相同的比表面积或更大，SO x 的吸收容量显着增加。此外，即使在富含气氛中，MgO的存在使得能够将SO SB 的状态保持到约600℃的高温区域以抑制放电。版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2004358458A NOx RESOLVING CATALYST 审中-公开
公开(公告)号：JP2004358458A
公开(公告)日：2004-12-24
申请号：JP2004128645
申请日：2004-04-23
申请人： Toyota Central Res & Dev Lab Inc , 株式会社豊田中央研究所
发明人： MORIKAWA AKIRA , OKUMURA KOHEI , SUDA AKIHIKO , MATSUNAGA SHINICHI
IPC分类号： B01D53/94 , B01J23/52
摘要： PROBLEM TO BE SOLVED: To provide a NOx decomposing catalyst that can decompose NOx even in the absence of a reducing agent. SOLUTION: A cluster containing Pt, Ir and Au is an active species. The catalyst excels in adsorption and decomposition of NOx for containing Pt in addition to Ir and its heat resistance is improved. The residual O atoms on an active site are controlled as the residual O atoms are detached through an outlet of Au which is hard to oxidize. COPYRIGHT: (C)2005,JPO&NCIPI

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