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1. 发明专利

JPH09234367A CATALYST FOR PURIFYING DIESEL ENGINE EXHAUST GAS 失效
公开(公告)号：JPH09234367A
公开(公告)日：1997-09-09
申请号：JP33690596
申请日：1996-12-17
申请人： CATALER IND CO , TOYOTA MOTOR CORP , TOYOTA CENTRAL RES & DEV
发明人： AONO NORIHIKO , KASAHARA KOICHI , NAGAMI TETSUO , SATO AKEMI , SAKANO KOJI , WATANABE YOSHIHIDE
IPC分类号： B01D53/86 , B01D53/94 , B01J21/16 , B01J37/02
摘要： PROBLEM TO BE SOLVED: To prevent the discharge of particulates and sulfate and to enhance the purifying efficiency of HC and CO by forming the surface part of a catalyst support layer by coating an activated alumina powder with heat-resistant inorg. oxide and supporting a metal catalyst on the catalyst support layer. SOLUTION: An exhaust gas purifying catalyst is prepared by coating a carrier with a catalyst support layer and supporting a catalyst metal on the catalyst support layer. Especially, the catalyst support layer consists of an activated alumina powder and heat-resistant inorg. oxide and the activated alumina powder is coated with heat-resistant inorg. oxide so as to constitute the surface part of the catalyst support layer of the heat-resistant inorg. oxide to form the catalyst support layer. The heat-resistant inorg. oxide is composed of a double-chain structure type clay mineral made non-crystalline. Further, at least one kind of a metal selected from platinum, palladium and rhodium is supported on the surface part of the outside of the activated alumina powder. By this catalyst, a harmful component such as HC, CO or SOF can be removed.

2. 发明专利

JPH0929093A EXHAUST GAS PURIFYING CATALYST AND ITS PRODUCTION 失效
公开(公告)号：JPH0929093A
公开(公告)日：1997-02-04
申请号：JP18564495
申请日：1995-07-21
申请人： TOYOTA CENTRAL RES & DEV , TOYOTA MOTOR CORP , CATALER IND CO
发明人： WATANABE YOSHIHIDE , SAKANO KOJI , NAGAMI TETSUO , SATO AKEMI , KASAHARA KOICHI , AONO NORIHIKO
IPC分类号： B01D53/86 , B01D53/94 , B01J21/16 , B01J23/58 , B01J23/63 , B01J37/08
摘要： PROBLEM TO BE SOLVED: To oxidize and decompose HC and CO in exhaust gas of a diesel engine within a low temp. region and to reduce the discharge amt. of PM by suppressing the formation of sulfate within a high temp. region. SOLUTION: This exhaust gas purifying catalyst is constituted by supporting at least one element selected from a rare earth element, alkal metal and alkaline earth metal and a noble metal on a transition metal-containing double-chain structure type clay mineral wherein at least a part of Mg and/or Al constituting double-chain structure type clay mineral at least a part of which is made amorphous is substituted with a transition metal. By supporting at least one of a rare earth element, alkali metal and alkaline earth metal along with a noble metal, the electron state of the noble metal is considered to be changed and the absorbability of HC is enhanced and that of SO2 is lowered.

3. 发明专利

JPH08266865A EXHAUST GAS PURIFICATION CATALYST FOR DIESEL ENGINE 失效
公开(公告)号：JPH08266865A
公开(公告)日：1996-10-15
申请号：JP7413995
申请日：1995-03-30
申请人： TOYOTA MOTOR CORP , TOYOTA CENTRAL RES & DEV , CATALER IND CO
发明人： SATO AKEMI , YAMASHITA KOICHI , SAKANO KOJI , SUGIURA MASAHIRO , KUMAI YOKO , KASAHARA KOICHI , AONO NORIHIKO
IPC分类号： F01N3/10 , B01D53/86 , B01D53/94 , B01J23/56 , B01J23/58 , B01J23/63 , B01J23/64 , B01J23/648 , B01J23/652 , B01J29/068 , B01J37/02 , F01N3/28 , F02B3/06
摘要： PURPOSE: To obtain an exhaust gas purification catalyst capable of simultaneously attaining the maintenance and improvement of ability to oxidation-decompose CO, etc., and the more satisfactory suppression of formation of SO3 . CONSTITUTION: Multiple oxide of V and La, etc., is further carried on a catalyst carried layer with a carried element of the platinum group. An alkali metal is further carried on a catalyst carried layer of silica, etc. When a catalyst carried layer contains at least silica and an alkaline earth metal, they are allowed to form multiple oxide. The formation of SO3 can be almost surely suppressed while maintaining ability to oxidation-decompose CO, etc.

4. 发明专利

JPH0924245A OXIDATION CATALYST 失效
公开(公告)号：JPH0924245A
公开(公告)日：1997-01-28
申请号：JP17766195
申请日：1995-07-13
申请人： TOYOTA CENTRAL RES & DEV , TOYOTA MOTOR CORP , CATALER IND CO
发明人： SAKANO KOJI , SUGIURA MASAHIRO , WATANABE YOSHIHIDE , KUMAI YOKO , NAGAMI TETSUO , SATO AKEMI , KASAHARA KOICHI , AONO NORIHIKO
IPC分类号： B01D53/86 , B01D53/94 , B01J23/74 , B01J23/745
摘要： PROBLEM TO BE SOLVED: To oxidatively decompose HC and CO in an exhaust gas in a low temp. region and to decrease the exhaust amt. of PM by suppressing formation of sulfate in a high temp. region. SOLUTION: This oxidation catalyst has a multi-chain structure clay mineral at least a part of which is non-crystallized by heat-treatment and a platinum metal carried by this clay mineral, and atoms with a ratio of 0.05-0.8 to the total number of atoms of those elements among Mg and/or Al, the constitutional elements of clay mineral are replaced with transition metal elements. Since a large amt. of transition metal elements are introduced, Mg and/or Al in the clay mineral is reduced, and the amt. of SO2 absorbed in the catalyst is decreased. Even though SO2 reacts with activated oxygen on Pt and changes to SO3 , it becomes SO2 again by being reduced on a large amt. of the existing transition metal elements, and then formation of sulfate is suppressed.

5. 发明专利

JP2006055836A Inorganic oxide, catalyst carrier for purifying exhaust, and catalyst for purifying exhaust 有权
标题翻译：无机氧化物，用于净化排气的催化剂载体和用于净化排气的催化剂
公开(公告)号：JP2006055836A
公开(公告)日：2006-03-02
申请号：JP2005182266
申请日：2005-06-22
申请人： Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： MORIKAWA AKIRA , TANABE TOSHITAKA , YAMAMURA YOSHIE , TAKAHASHI NAOKI , SUZUKI HIROMASA , KUNO HISASHI , SATO AKEMI , ISHIKIRIYAMA MAMORU , KANAZAWA TAKAAKI
IPC分类号： B01J23/63 , B01D53/94 , B01J32/00 , B01J37/03
摘要： PROBLEM TO BE SOLVED: To provide an inorganic oxide by which the particle growth of a carried metal (e.g., rhodium) is sufficiently suppressed, a catalyst carrier for purifying exhaust comprising such inorganic oxide, and a catalyst for purifying exhaust using it. SOLUTION: The inorganic oxide is in the form of particles and contains an aluminum oxide, a metal oxide not forming a composite oxide with such aluminum oxide, and an additional element comprising at least either a rare earth element and an alkaline earth element, wherein the proportion (in terms of the amount of the oxide) of the additional element contained is 1.5 to 5.6 mol.% with relation to the total amount of the additional element, the aluminum, and the above metal oxide, 80% or more of primary particles of the inorganic oxide has a particle size of 100 nm or less, and at least a part of primary particles have a surface concentrated region where the proportion of the additional element contained is locally increased in such surface layer part. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：待解决的问题：为了提供充分抑制载体金属（例如铑）的颗粒生长的无机氧化物，包含这种无机氧化物的用于净化废气的催化剂载体和使用其净化排气的催化剂。解决方案：无机氧化物为颗粒形式，并含有氧化铝，不与这种氧化铝形成复合氧化物的金属氧化物，以及包含稀土元素和碱土金属元素中的至少一种的附加元素其中，相对于添加元素的总量，铝和上述金属氧化物，所含的添加元素的比例（以氧化物的量计）为1.5〜5.6摩尔％，为80质量％以上的无机氧化物的一次粒子的粒径为100nm以下，并且至少一部分一次粒子具有表面浓缩区域，其中所含的附加元素的比例在该表面层部分局部增加。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2007331992A Inorganic oxide and exhaust gas cleaning catalyst using the same 有权
标题翻译：无氧氧化物和排气使用相同的气体清洁催化剂
公开(公告)号：JP2007331992A
公开(公告)日：2007-12-27
申请号：JP2006167111
申请日：2006-06-16
申请人： Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： MORIKAWA AKIRA , TANABE TOSHITAKA , TAKAHASHI NAOKI , YAMAMURA YOSHIE , YOSHIDA TAKESHI , SATO AKEMI
IPC分类号： C01G25/00 , B01D53/86 , B01J23/63
CPC分类号： C01B13/363 , B01D53/945 , B01D2255/202 , B01D2255/204 , B01D2255/206 , B01D2255/40 , B01D2255/407 , B01J23/002 , B01J23/58 , B01J23/63 , B01J35/023 , B01J37/0201 , B01J37/031 , B01J2523/00 , B82Y30/00 , C01G23/047 , C01G25/02 , C01P2002/50 , C01P2002/52 , C01P2004/04 , C01P2004/64 , C01P2006/32 , Y02T10/22 , B01J2523/31 , B01J2523/3725 , B01J2523/48 , B01J2523/3706
摘要： PROBLEM TO BE SOLVED: To provide an inorganic oxide having excellent heat resistance. SOLUTION: The particulate inorganic oxide contains aluminum oxide, a metal oxide which does not form a compound oxide with aluminum oxide, and at least one additional element selected from the group composed of rare earth elements and alkaline-earth elements. This inorganic oxide is characterized in that the content of the aluminum oxide is 48-92 atomic% of the total amount of aluminum of the aluminum oxide, a metallic element of the metal oxide and the additional element in terms of elements, ≥80% of primary particles of the inorganic oxide have each ≤100 nm particle size, at least a part of the primary particle of the inorganic oxide has an additional element-concentrated surface zone, where the content of the additional element is made higher locally, in the surface layer, and the amount of the additional element in the additional element-concentrated surface zone is 0.06-0.98 mass% of the total amount of the inorganic oxide in terms of oxides. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：提供耐热性优异的无机氧化物。解决方案：颗粒无机氧化物含有氧化铝，不与氧化铝形成复合氧化物的金属氧化物和至少一种选自稀土元素和碱土金属元素的附加元素。该无机氧化物的特征在于，氧化铝的含量为氧化铝的铝总量的48-92原子％，金属氧化物的金属元素和元素的附加元素的含量≥80％无机氧化物的一次颗粒具有≤100nm的粒度，无机氧化物的一次粒子的至少一部分具有附加元素浓缩表面区域，其中附加元素的含量在局部变得更高，在表面附加元素浓缩表面区域中的附加元素的量为氧化物换算为无机氧化物总量的0.06〜0.98质量％。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2007331991A Inorganic oxide and exhaust gas cleaning catalyst using the same 有权
标题翻译：无氧氧化物和排气使用相同的气体清洁催化剂
公开(公告)号：JP2007331991A
公开(公告)日：2007-12-27
申请号：JP2006167110
申请日：2006-06-16
申请人： Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： MORIKAWA AKIRA , TANABE TOSHITAKA , TAKAHASHI NAOKI , YAMAMURA YOSHIE , YOSHIDA TAKESHI , SATO AKEMI
IPC分类号： C01G25/00 , B01D53/94 , B01J23/63
CPC分类号： C01B13/363 , B01D53/945 , B01D2255/204 , B01D2255/206 , B01D2255/40 , B01D2255/407 , B01J23/002 , B01J23/63 , B01J35/002 , B01J35/023 , B01J2523/00 , C01G25/02 , Y02T10/22 , B01J2523/31 , B01J2523/3706 , B01J2523/3725 , B01J2523/48 , B01J2523/822
摘要： PROBLEM TO BE SOLVED: To provide an inorganic oxide having excellent heat resistance. SOLUTION: The particulate inorganic oxide contains aluminum oxide, a metal oxide which does not form a compound oxide with aluminum oxide, and at least one additional element selected from the group composed of rare earth elements and alkaline-earth elements. This inorganic oxide is characterized in that the content of the additional element is 1.1-8.0 atomic% of the total amount of aluminum of the aluminum oxide, a metallic element of the metal oxide and the additional element in terms of elements, ≥80% of primary particles of the inorganic oxide have each ≤100 nm particle size, at least a part of the primary particle of the inorganic oxide has an additional element-concentrated surface zone, where the content of the additional element is made higher locally, in the surface layer part, and the amount of the additional element in the additional element-concentrated surface zone is 0.06-0.98 mass% of the total amount of the inorganic oxide in terms of oxides. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：提供耐热性优异的无机氧化物。解决方案：颗粒无机氧化物含有氧化铝，不与氧化铝形成复合氧化物的金属氧化物和至少一种选自稀土元素和碱土金属元素的附加元素。该无机氧化物的特征在于，附加元素的含量为氧化铝的铝总量的1.1-8.0原子％，金属氧化物的金属元素和元素中的附加元素的≥80％无机氧化物的一次颗粒具有≤100nm的粒度，无机氧化物的一次粒子的至少一部分具有附加元素浓缩表面区域，其中附加元素的含量在局部变得更高，在表面附加元素浓缩表面区域中的附加元素的量为氧化物换算为无机氧化物总量的0.06〜0.98质量％。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2006036556A Inorganic oxide, exhaust gas purification catalyst support and exhaust gas purification catalyst 有权
标题翻译：无机氧化物，排气净化催化剂支持和排气净化催化剂
公开(公告)号：JP2006036556A
公开(公告)日：2006-02-09
申请号：JP2004214932
申请日：2004-07-22
申请人： Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： MORIKAWA AKIRA , TANABE TOSHITAKA , YAMAMURA YOSHIE , TAKAHASHI NAOKI , SUZUKI HIROMASA , KUNO HISASHI , SATO AKEMI , ISHIKIRIYAMA MAMORU , KANAZAWA TAKAAKI
IPC分类号： C01G25/00 , B01D53/86 , B01D53/94 , B01J23/10 , B01J23/63 , B01J37/03 , B01J37/08 , F01N3/10
摘要： PROBLEM TO BE SOLVED: To provide an inorganic oxide in which the grain growth of a supported metal (rhodium or the like) is satisfactorily suppressed, an exhaust gas purification catalyst support comprising the same and an exhaust gas purification catalyst using the same. SOLUTION: In the particulate inorganic oxide containing aluminum oxide, a metal oxide which does not form a compound oxide with aluminum oxide and an additive element comprising at least one of a rare earth element and an alkaline earth element, the content of aluminum oxide is 15-40 mol% per total quantity of aluminum in the aluminum oxide, a metal element in the metal oxide and the additive element, ≥80% of the primary particle of the inorganic oxide has ≤100 nm particle diameter and at least a part of the primary particle has a surface layer part having a concentrated zone where the content of the additive element is locally increased. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供令人满意地抑制负载金属（铑等）的晶粒生长的无机氧化物，包含该负载金属的铑等的废气净化催化剂载体和使用其的废气净化催化剂。解决方案：在含氧化铝的颗粒状无机氧化物中，不与氧化铝形成复合氧化物的金属氧化物和包含稀土元素和碱土金属元素中的至少一种的添加元素，铝的含量氧化铝中的铝的总量为15〜40摩尔％，金属氧化物中的金属元素和添加元素的≥80％的无机氧化物的一次粒子的粒径≤100nm，至少为初级颗粒的一部分具有表面层部分，其具有局部增加添加元素的含量的浓缩区域。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2007301526A Catalyst for cleaning exhaust gas and its manufacturing method 审中-公开
标题翻译：用于清洁排气的催化剂及其制造方法
公开(公告)号：JP2007301526A
公开(公告)日：2007-11-22
申请号：JP2006135081
申请日：2006-05-15
申请人： Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： MORIKAWA AKIRA , TANABE TOSHITAKA , TAKAHASHI NAOKI , YOSHIDA TAKESHI , SATO AKEMI
IPC分类号： B01J23/63 , B01D53/94 , F01N3/10
CPC分类号： B01D53/944 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/204 , B01D2255/2047 , B01D2255/206 , B01D2255/20715 , B01D2255/2092 , B01D2255/90 , B01D2255/904 , B01D2255/9207 , B01J23/63 , B01J35/002 , F01N3/0857 , F01N3/2803 , F01N2370/02 , Y02T10/20
摘要： PROBLEM TO BE SOLVED: To provide a catalyst for cleaning exhaust gas, in which the degradation of Rh is restrained satisfactorily and which has excellent low-temperature performance. SOLUTION: The catalyst for cleaning exhaust gas is manufactured by using a catalyst component A, which is obtained by depositing Rh on a catalytic carrier for depositing Rh and has 25-60 μmol g -1 CO 2 adsorption capacity per unit weight and 0.2-2.3 μmol m -2 g 1 CO 2 adsorption capacity per unit specific surface area, a catalyst component B and a binder. This catalyst is characterized in that the CO 2 adsorption capacity per unit weight is 18-60 μmol g -1 and the CO 2 adsorption capacity per unit specific surface area is 0.2-2.5 μmol m -2 g 1 and the ratio of (the CO 2 adsorption capacity per unit weight of this catalyst)/(the CO 2 adsorption capacity per unit weight of the catalyst component A) is ≥75%. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：提供一种清洁排气的催化剂，其中Rh的降解令人满意地被抑制并且具有优异的低温性能。解决方案：通过使用催化剂组分A制备用于清洁废气的催化剂，催化剂组分A通过在用于沉积Rh的催化载体上沉积Rh而获得，并且具有25-60μmol/ 每单位重量的吸附容量和0.2-2.3μmol/ s的吸附容量 2 2 比表面积，催化剂组分B和粘合剂。该催化剂的特征在于每单位重量的CO 2 吸附容量为18-60μmol·g·SP·-1·/ 单位比表面积为0.2-2.5μmol·m·SP＆gt;＆lt; SP＆gt;＆lt; SP＆gt; 1＆lt; / SP＆gt;（每单位重量的CO 2 催化剂）/（催化剂组分A）每单位重量的CO 2 吸附容量≥75％。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2006035019A Inorganic oxide, catalyst carrier for cleaning exhaust gas and catalyst for cleaning exhaust gas 有权
标题翻译：无机氧化物，用于清洁排气的催化剂载体和用于清洁排气的催化剂
公开(公告)号：JP2006035019A
公开(公告)日：2006-02-09
申请号：JP2004214939
申请日：2004-07-22
申请人： Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： MORIKAWA AKIRA , TANABE TOSHITAKA , YAMAMURA YOSHIE , TAKAHASHI NAOKI , SUZUKI HIROMASA , KUNO HISASHI , SATO AKEMI , ISHIKIRIYAMA MAMORU , KANAZAWA TAKAAKI
IPC分类号： B01J23/63 , B01D53/86 , B01J23/10 , B01J32/00 , B01J37/08 , C01G25/00 , F01N3/10
摘要： PROBLEM TO BE SOLVED: To provide an inorganic oxide in which grain growth of carried metals (rhodium, or the like) is sufficiently suppressed, a catalyst carrier for cleaning an exhaust gas comprising the same and a catalyst for cleaning the exhaust gas using the same. SOLUTION: The granular inorganic oxide contains aluminum oxide; a metal oxide not forming a composite oxide with aluminum oxide; and an addition element comprising at least one of a rare-earth element and an alkaline earth element and contains a secondary particle formed by coagulation of a primary particle. In the inorganic oxide, at least a part of the secondary particle is formed by coagulation of a plurality of the first primary particles with a particle diameter of 100 nm or less containing aluminum oxide and the addition element and a plurality of second primary particles with a particle diameter of 100 nm or less containing the metal oxide and the addition element. At least a part of the first and second primary particles has a surface thickening area where a content ratio of the addition element is locally enhanced at the surface layer part. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：待解决的问题：提供一种无机氧化物，其中承载的金属（铑等）的晶粒生长被充分抑制，用于清洁包含该催化剂的废气的催化剂载体和用于清洁排气的催化剂使用相同解决方案：粒状无机氧化物含有氧化铝; 不与氧化铝形成复合氧化物的金属氧化物; 以及包含稀土元素和碱土金属元素中的至少一种的添加元素，并且含有通过一次粒子凝聚而形成的二次粒子。在无机氧化物中，至少一部分二次粒子是通过使包含氧化铝和添加元素的多个粒径为100nm以下的第一一次粒子和多个第二一次粒子与含有金属氧化物和添加元素的粒径为100nm以下。第一和第二初级颗粒的至少一部分具有表面增稠区域，其中添加元素的含量比在表层部分局部增强。版权所有（C）2006，JPO＆NCIPI

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