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31. 发明专利

JP2019018126A 排ガス浄化用触媒担体、それを用いた排ガス浄化用触媒、及び排ガス浄化用触媒担体の製造方法审中-公开
公开(公告)号：JP2019018126A
公开(公告)日：2019-02-07
申请号：JP2017136455
申请日：2017-07-12
申请人： TOYOTA CENTRAL RES & DEV
发明人： KUMAGAI NAOKI , MORIKAWA AKIRA , TANABE TOSHITAKA
IPC分类号： B01J35/02 , B01D53/94 , B01J23/10 , B01J35/10 , B01J37/04 , F01N3/10 , F01N3/28
摘要：【課題】高温に曝された場合であっても優れた酸素吸放出速度(OSC速度)を示す排ガス浄化用触媒を得ることが可能な排ガス浄化用触媒担体を提供すること。【解決手段】平均短径が1〜20nmかつ平均アスペクト比が10以上である繊維状アルミナ系酸化物と、平均一次粒子径が1〜20nmかつ平均アスペクト比が3以下である粒子状酸化物と、を含有することを特徴とする排ガス浄化用触媒担体。【選択図】図1

32. 发明专利

JP2005224705A Catalyst for cleaning exhaust gas 审中-公开
标题翻译：催化剂用于清洁排气
公开(公告)号：JP2005224705A
公开(公告)日：2005-08-25
申请号：JP2004036157
申请日：2004-02-13
申请人： Toyota Central Res & Dev Lab Inc , 株式会社豊田中央研究所
发明人： TAKAHASHI NAOKI , TANABE TOSHITAKA , YAMAMOTO TOSHIO , SUDA AKIHIKO
IPC分类号： B01D53/94 , B01D53/86 , B01J23/63 , B01J35/10
CPC分类号： Y02T10/24
摘要： PROBLEM TO BE SOLVED: To produce a catalyst in which the specific surface area of an oxide carrier can be restrained from being reduced and the grain growth of a noble metal to be deposited on the oxide carrier can also be restrained. SOLUTION: This catalyst is composed of the oxide carrier the specific surface area of which, when heat-treated in an oxidizing atmosphere, is substantially equal to that when heat-treated in a reducing atmosphere and the noble metal deposited on the oxide carrier. Since the extent of reduction of the specific surface area in the reducing atmosphere is substantially equal to that of reduction of the specific surface area in the oxidizing atmosphere, the reduction of the specific surface area can be restrained in comparison with the conventional oxide carrier. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了制备可以抑制氧化物载体的比表面积减小的催化剂，并且也可以抑制沉积在氧化物载体上的贵金属的晶粒生长。解决方案：该催化剂由氧化物载体组成，其比表面积在氧化气氛中进行热处理时，与在还原气氛中进行热处理时基本相同，而沉积在氧化物上的贵金属载体。由于还原性气氛中的比表面积的还原程度与氧化气氛中的比表面积的还原程度大致相同，所以与以往的氧化物载体相比，能够抑制比表面积的减小。版权所有（C）2005，JPO＆NCIPI

33. 发明专利

JP2004340637A Method for measuring dispersibility of noble metal and dispersibility measuring instrument 有权
标题翻译：测量金属和不可分辨性测量仪器的不均衡性的方法
公开(公告)号：JP2004340637A
公开(公告)日：2004-12-02
申请号：JP2003135071
申请日：2003-05-13
申请人： Toyota Central Res & Dev Lab Inc , 株式会社豊田中央研究所
发明人： NAGAI YASUTAKA , TANABE TOSHITAKA
IPC分类号： G01N27/62 , G01N31/10
摘要： PROBLEM TO BE SOLVED: To measure a dispersibility with a high precision even in a catalyst using an oxide having an oxygen absorbing/discharging capacity.
SOLUTION: In such a state that the catalyst is cooled to a sufficiently low temperature capable of suppressing the formation of a carbonate seed, CO is adsorbed by the catalyst and the adsorption amount of CO is measured while the amount of an active noble metal being the amount of the noble metal having adsorbed CO is calculated from the adsorption amount of CO and the dispersibility of the noble metal is calculated from the ratio of the amount of the active noble metal to the total amount of the noble metal supported on the catalyst. The formation of the carbonate seed can be suppressed by adsorbing CO at a sufficiently low temperature and the lowering of measuring precision caused by the increase in the apparent adsorption amount of CO by the formation of the carbonate seed can be prevented.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：即使在使用具有氧吸收/排出能力的氧化物的催化剂中，也可以高精度地测量分散性。解决方案：在将催化剂冷却到能够抑制碳酸盐晶种形成的足够低的温度的状态下，CO被催化剂吸附，并且测量CO的吸附量，同时活性贵金属的量由CO的吸附量计算金属是吸附有CO的贵金属的量，贵金属的分散性由活性贵金属的量与负载的贵金属的总量的比例计算催化剂。可以通过在足够低的温度下吸附CO来抑制碳酸盐种子的形成，并且可以防止由于形成碳酸盐种子而导致的CO的表观吸附量的增加引起的测量精度的降低。版权所有（C）2005，JPO＆NCIPI

34. 发明专利

JP2003073123A Compound oxide and method for producing the same, and auxiliary catalyst for cleaning flue gas 有权
标题翻译：化合物及其生产方法，以及用于清洁燃气的辅助催化剂
公开(公告)号：JP2003073123A
公开(公告)日：2003-03-12
申请号：JP2001261260
申请日：2001-08-30
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 , NAGAI YASUTAKA , TANABE TOSHITAKA , SUZUKI TADASHI , SUDA AKIHIKO
IPC分类号： F01N3/10 , B01D53/86 , B01J23/10 , B01J23/63 , B01J32/00 , B01J37/03 , B01J37/10 , B01J37/16 , C01G1/02 , C01G25/00 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To provide an auxiliary catalyst for cleaning flue gas having both a high specific surface area and high oxygen occlusion and release capability. SOLUTION: This compound oxide to be used as a carrier comprises CeO2 , ZrO2 and a metal oxide which does not react with CeO2 nor with ZrO2 , which contains a pyrochlore phase where Ce and Zr are regularly disposed. As CeO2 -ZrO2 compound oxide and the metal oxide which does not react with CeO2 nor with ZrO2 act as a barrier against each other, grain growth due to high heat at the reduction treatment for forming the pyrochlore phase is suppressed, and oxygen occlusion and release capability is enhanced by the formation of the pyrochlore phase.
摘要翻译：要解决的问题：提供一种用于清洁具有高比表面积和高氧吸留和释放能力的烟道气的辅助催化剂。解决方案：用作载体的复合氧化物包括CeO 2，ZrO 2和不与CeO 2反应的金属氧化物，也不含ZrO 2，其含有规则地设置Ce和Zr的烧绿石相。由于CeO 2 -ZrO 2复合氧化物和不与CeO 2或ZrO 2反应的金属氧化物作为彼此的隔离物，因此抑制了用于形成烧绿石相的还原处理时由于高热导致的晶粒生长，并且氧气闭塞和释放通过形成烧绿石相增强了能力。

35. 发明专利

JP2002102700A NORMAL TEMPERATURE CATALYST 失效
公开(公告)号：JP2002102700A
公开(公告)日：2002-04-09
申请号：JP2000296952
申请日：2000-09-28
申请人： TOYOTA CENTRAL RES & DEV
发明人： TANABE TOSHITAKA , SOFUGAWA HIDEO , SUZUKI KENICHIRO , SASAKI SHIGERU , MORIKAWA AKIRA , HAYASHI HIROAKI , SUGIURA MASAHIRO
IPC分类号： A61L9/00 , B01D53/86 , B01J23/63 , B01J23/656 , B01J23/89 , B01J35/02 , B01J37/16
摘要： PROBLEM TO BE SOLVED: To decompose and remove an environment load substance such as CO, amines, formaldehyde and the like by activating it at a normal temperature of 50 deg.C or less. SOLUTION: The catalyst contains 40 μmol/g or more of an active oxygen active at 50 deg.C or less. The active oxygen is reacted with the environment load substance adsorbed on a surface of the catalyst at a normal temperature of 50 deg.C or less and decomposes the environment load substance by an oxidation. The active oxygen contained in the catalyst is consumed by the reaction with the environment load substance. However, an oxygen gas contained in an air is taken in the catalyst to become an active oxygen and it is further reacted with the environment load substance.

36. 发明专利

JP2001187343A CLEANING CATALYST AT NORMAL TEMPERATURE AND UTILIZATION THEREOF 失效
公开(公告)号：JP2001187343A
公开(公告)日：2001-07-10
申请号：JP2000086551
申请日：2000-03-27
申请人： TOYOTA CENTRAL RES & DEV
发明人： SOFUGAWA HIDEO , TANABE TOSHITAKA , SUZUKI KENICHIRO , SASAKI SHIGERU , HAYASHI HIROAKI , MORIKAWA AKIRA , SUGIURA MASAHIRO
IPC分类号： B01D53/86 , B01D53/94 , B01J23/56 , B01J23/63 , B01J23/66 , B01J23/745
摘要： PROBLEM TO BE SOLVED: To provide a catalyst for decomposing and cleaning environmental loading materials such as carbon monoxide, nitrogen oxides, ethylene, odorous materials or the like contained in the air at a normal temperature (which means a temperature equal to or below the usual temperature of a room unnecessary for particular heating or cooling). SOLUTION: The catalyst is a cleaning catalyst at normal temperature and formed by carrying a noble metal on an oxide, into which oxygen deficiency is introduced by a reduction treatment. As the oxide, cerium oxide and zirconium oxide are contained and at least a part of cerium oxide exists in the oxygen deficiency state by the reduction. The catalyst cleans the environmental loading materials of carbon monoxide, nitrogen oxides, ethylene, odorous materials or the harmful materials contained in the air by the contact with the catalyst at the normal temperature.

37. 发明专利

JPH08294625A CATALYST FOR PURIFYING EXHAUST GAS AND EXHAUST GAS-PURIFYING METHOD 失效
公开(公告)号：JPH08294625A
公开(公告)日：1996-11-12
申请号：JP10218595
申请日：1995-04-26
申请人： TOYOTA CENTRAL RES & DEV
发明人： TANABE TOSHITAKA , TANAKA TOSHIYUKI , SHINJO HIROBUMI
IPC分类号： B01D53/86 , B01D53/94 , B01J23/64 , B01J23/652
摘要： PURPOSE: To maintain the performance of a three way catalyst in a rich region near a stoichiometric region as in the case of conventional one and to control the generation of ammonia. CONSTITUTION: A catalyst is composed of a porous carrier, at least one kind of alkali metal or alkaline earth metal which is supported by the carrier, catalytic noble metal, and Mo and/or Mo-oxide. An active point is formed by the cooperative action between Mo and/or Mo-oxide and the catalytic noble metal, and the electronic state of the active point is changed by alkali metal or alkaline earth metal. As a result, the reaction selectivity of NO on the active point is changed to control the generation of NH3 .

38. 发明专利

JP2005281817A Method for producing colloid of noble metal having aimed particle diameter 审中-公开
标题翻译：用于生产具有吸附颗粒直径的贵金属的胶体的方法
公开(公告)号：JP2005281817A
公开(公告)日：2005-10-13
申请号：JP2004100124
申请日：2004-03-30
申请人： Tanaka Kikinzoku Kogyo Kk , Toyota Central Res & Dev Lab Inc , 株式会社豊田中央研究所 , 田中貴金属工業株式会社
发明人： TAKAHASHI NAOKI , YONEKURA HIROTAKA , TANABE TOSHITAKA , SAMUE TAKEMOTO , YANAI JUNICHI
IPC分类号： B01J13/00 , B22F9/24
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a colloid of a noble metal having an aimed particle diameter.
SOLUTION: This method for producing the colloid of the noble metal comprises the steps of: preparing three or more colloids each of which has a known and different ratio of the noble metal content to a protective agent content, from each other; measuring the particle diameter of each colloid; determining a correlation between the ratios of the noble metal content to the protective agent content and the particle diameters of the colloids; determining the ratio of the noble metal content to the protective agent content, which provides the aimed particle diameter of the colloid from the correlation; and producing a colloidal solution having the ratio of the noble metal content to the protective agent content.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：待解决的问题：提供一种具有目标粒径的贵金属的胶体的制造方法。解决方案：用于制备贵金属胶体的方法包括以下步骤：制备三种或更多种彼此具有已知且不同比例的贵金属含量与保护剂含量的胶体; 测量每个胶体的粒径; 确定贵金属含量与保护剂含量的比率和胶体的粒径之间的相关性; 确定贵金属含量与保护剂含量的比例，其从相关性提供胶体的目标粒径; 并制备具有贵金属含量与保护剂含量之比的胶体溶液。版权所有（C）2006，JPO＆NCIPI

39. 发明专利

JP2001009288A CATALYST FOR PURIFICATION OF EXHAUST GAS 失效
公开(公告)号：JP2001009288A
公开(公告)日：2001-01-16
申请号：JP18159699
申请日：1999-06-28
申请人： TOYOTA CENTRAL RES & DEV
发明人： TANABE TOSHITAKA , SHINJO HIROBUMI , TSUJI RYUSUKE
IPC分类号： B01D53/94 , B01J29/44 , F01N3/10 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To obtain a catalyst for the purification of exhaust gas used for reducing and removing NOx contained in exhaust gas containing excess oxygen and capable of retaining high catalytic activity even to SOx-containing exhaust gas over a long period of time. SOLUTION: The catalyst contains a powdery porous oxide with a supported noble metal, powdery ZSM-5 and a powdery CeO2-ZrO2 solid solution. Since the noble metal is previously supported on the powdery porous oxide, the probability of contact of the noble metal with the ZSM-5 and the CeO2-ZrO2 solid solution lowers. Since the ZSM-5 is excellent in HC adsorptivity and the CeO2-ZrO2 solid solution has high oxygen occluding and discharging ability and high heat resistance, the covering of the noble metal with accumulated SOx as well as the grain growth of the noble metal is suppressed.

40. 发明专利

JP2001000840A EXHAUST GAS PURIFYING DEVICE 失效
公开(公告)号：JP2001000840A
公开(公告)日：2001-01-09
申请号：JP17410499
申请日：1999-06-21
申请人： TOYOTA CENTRAL RES & DEV
发明人： NAGAI YASUTAKA , SHINJO HIROBUMI , TANABE TOSHITAKA
IPC分类号： B01D53/86 , B01D53/94 , B01J23/46 , B01J29/068 , F01N3/08 , F01N3/10 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To exhibit catalytic capacity to maximum and to efficiently purify NOx in a wide temp. range by controlling a reducing agent concn. in the exhaust gas flowing into the catalyst may be temporarily increased based on a detected temp. of a catalyst for purifying exhaust gas with a proper frequency that its NOx reduction capacity becomes maximum. SOLUTION: The catalyst 2 containing at least rhodium is arranged on an exhaust gas passage of an engine 1 and a temp. sensor 3 is arranged on the upstream side of the catalyst and also the feed rate of a hydrocarbon feed unit 6 is controlled variably by a control device 7 based on a detected signal of the temp. sensor 3. That is, the control device 7 reads the real catalyst temp. and judges whether the hydrocarbon may be fed or not from a table stored at a ROM 77. When the control device judges to start feeding, the hydrocarbon feed unit 6 is driven through a hydrocarbon feed unit driving part 73. The activity of the rhodium catalyst 2 is improved and the NOx is efficiently reduced and purified to N2 by executing such a feed back control.

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