公开(公告)号：US20160038921A1

公开(公告)日：2016-02-11

申请号：US14885716

申请日：2015-10-16

Applicant: DAIHATSU MOTOR CO., LTD. ,  CATALER CORPORATION

Inventor： Hirohisa TANAKA ,  Mari UENISHI ,  Masashi TANIGUCHI ,  Ryouhei IWASAKI ,  Mareo KIMURA ,  Satoshi MATSUEDA

IPC: B01J23/89 ,  B01J23/78 ,  B01J37/08 ,  B01J23/00

CPC classification number: 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

Abstract: A method for producing an exhaust gas purifying catalyst including a composite oxide represented by the following general formula (3), the method including a primary baking step of baking a coprecipitate obtained from an aqueous mixed salt solution of respective elements, a citrate complex obtained from an aqueous citric acid mixed salt solution of salts of the respective elements and citric acid, or a precipitate obtained from an alkoxide mixed solution of the respective elements at 500 to 1200° C., the respective elements constituting the exhaust gas purifying catalyst represented by the following general formula (3), including A, B and Fe but excluding Pd; a step of adding an aqueous solution of Pd salt to a primary composite oxide obtained through the primary baking step to give a precursor composition; and a secondary baking step of baking the precursor composition at 800 to 1400° C., AO.x(B2-y-ZFeyPdZO3-α) (3).

Abstract translation: 一种生产包含由以下通式（3）表示的复合氧化物的废气净化催化剂的方法，所述方法包括：焙烧由各元素的混合盐水溶液获得的共沉淀物的初级烘烤步骤，由 各种元素的盐和柠檬酸的柠檬酸盐水溶液的混合盐水溶液，或由各元素的醇盐混合溶液在500〜1200℃下得到的沉淀物，构成废气净化催化剂的各元素 按照通式（3），包括A，B和Fe，但不包括Pd; 将通过一次烘焙工序得到的一次复合氧化物的Pd盐水溶液添加到前体组合物中的工序; 以及在800〜1400℃下AOx（B2-y-ZFeyPdZO3-α）（3）烧成前体组合物的二次烧成工序。

公开(公告)号：US20140271431A1

公开(公告)日：2014-09-18

申请号：US14284878

申请日：2014-05-22

Applicant: DAIHATSU MOTOR CO., LTD. ,  CATALER CORPORATION

Inventor： Hirohisa TANAKA ,  Isao TAN ,  Mari UENISHI ,  Masashi TANIGUCHI ,  Mareo KIMURA ,  Satoshi MATSUEDA

IPC: B01J23/89 ,  B01J23/58 ,  B01D53/94

CPC classification number: B01D53/945 ,  B01D53/94 ,  B01D2255/1025 ,  B01D2255/204 ,  B01D2255/2047 ,  B01D2255/20738 ,  B01D2255/2092 ,  B01J23/002 ,  B01J23/58 ,  B01J23/8946 ,  B01J37/0201 ,  B01J37/031 ,  B01J2523/00 ,  Y02A50/2324 ,  Y02T10/22 ,  B01J2523/31 ,  B01J2523/3718 ,  B01J2523/822 ,  B01J2523/24 ,  B01J2523/842 ,  B01J2523/22 ,  B01J2523/47

Abstract: Provided is a method for purifying exhaust gas discharged from an internal combustion engine of a vehicle, using an exhaust gas purifying catalyst including a composite oxide represented by the following general formula AO.x(B2-yCyO3-α), wherein A represents an element selected from monovalent elements, divalent elements and lanthanides; B represents a trivalent element; and C represents a noble metal; x represents an integer of 1; y represents an atomic ratio satisfying the following relation: 0

Abstract translation: 提供一种使用包含由以下通式AO.x（B2-yCyO3-α）表示的复合氧化物的排气净化催化剂净化车辆内燃机排出的排气的方法，其中A表示元素 选自一价元素，二价元素和镧系元素; B代表三价元素; C代表贵金属; x表示1的整数; y表示满足以下关系的原子比：0

公开(公告)号：US20150265968A1

公开(公告)日：2015-09-24

申请号：US14733306

申请日：2015-06-08

Applicant: CATALER CORPORATION

Inventor： Hirohisa TANAKA ,  Isao TAN ,  Mari UENISHI ,  Masashi TANIGUCHI ,  Mareo KIMURA ,  Satoshi MATSUEDA

IPC: B01D53/94 ,  B01J23/89 ,  B01J23/58

CPC classification number: B01D53/945 ,  B01D53/94 ,  B01D2255/1025 ,  B01D2255/204 ,  B01D2255/2047 ,  B01D2255/20738 ,  B01D2255/2092 ,  B01J23/002 ,  B01J23/58 ,  B01J23/8946 ,  B01J37/0201 ,  B01J37/031 ,  B01J2523/00 ,  Y02A50/2324 ,  Y02T10/22 ,  B01J2523/31 ,  B01J2523/3718 ,  B01J2523/822 ,  B01J2523/24 ,  B01J2523/842 ,  B01J2523/22 ,  B01J2523/47

Abstract: Provided is a catalyst composition capable of preventing decrease in catalytic activity due to grain growth of noble metal under high temperature or under change in oxidation reduction or further for long term use, and of achieving excellent catalytic activity over a long time.The catalyst composition containing a composite oxide represented by the following general formula (1): AO.x(B2-yCyO3-α)  (1) (wherein A represents an element selected from monovalent elements, divalent elements and lanthanides; B represents a trivalent element; and C represents a noble metal; x represents an integer of 1 to 6; y represents an atomic ratio satisfying the following relation; 0

Abstract translation: 提供一种催化剂组合物，其能够防止贵金属在高温下或氧化还原或长期使用的变化下由于贵金属的晶粒生长而导致的催化活性降低，并且能够长期获得优异的催化活性。 含有由以下通式（1）表示的复合氧化物的催化剂组合物：AO.x（B2-yCyO3-α）（1）（其中A表示选自一价元素，二价元素和镧系元素的元素; B表示三价 元素; C表示贵金属; x表示1至6的整数; y表示满足以下关系的原子比; 0