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1. (WO2016092862) EXHAUST GAS PURIFYING CATALYST
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2016/092862    International Application No.:    PCT/JP2015/006203
Publication Date: 16.06.2016 International Filing Date: 11.12.2015
IPC:
B01J 37/02 (2006.01), B01J 37/03 (2006.01), B01J 35/00 (2006.01), B01J 23/00 (2006.01), B01J 23/10 (2006.01), B01J 23/63 (2006.01), B01D 53/94 (2006.01), B01J 35/02 (2006.01), C01G 25/00 (2006.01), C04B 35/626 (2006.01)
Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA [JP/JP]; 1, Toyota-cho, Toyota-shi, Aichi 4718571 (JP) (AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BE, BF, BG, BH, BJ, BN, BR, BW, BY, BZ, CA, CF, CG, CH, CI, CL, CM, CN, CO, CR, CU, CY, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GT, GW, HN, HR, HU, ID, IE, IL, IN, IR, IS, IT, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MC, MD, ME, MG, MK, ML, MN, MR, MT, MW, MX, MY, MZ, NA, NE, NG, NI, NL, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SI, SK, SL, SM, SN, ST, SV, SY, SZ, TD, TG, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, ZA, ZM, ZW only).
CATALER CORPORATION [JP/JP]; 7800, Chihama, Kakegawa-shi, Shizuoka 4371492 (JP) (AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BE, BF, BG, BH, BJ, BN, BR, BW, BY, BZ, CA, CF, CG, CH, CI, CL, CM, CN, CO, CR, CU, CY, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GT, GW, HN, HR, HU, ID, IE, IL, IN, IR, IS, IT, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MC, MD, ME, MG, MK, ML, MN, MR, MT, MW, MX, MY, MZ, NA, NE, NG, NI, NL, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SI, SK, SL, SM, SN, ST, SV, SY, SZ, TD, TG, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, ZA, ZM, ZW only).
SUZUKI, Hiromasa [JP/JP]; (JP) (US only).
YOSHIDA, Takeru [JP/JP]; (JP) (US only).
MIURA, Masahide [JP/JP]; (JP) (US only).
AOKI, Yuki [JP/JP]; (JP) (US only).
CHINZEI, Isao [JP/JP]; (JP) (US only).
SAITO, Yoshinori [JP/JP]; (JP) (US only).
OCHIAI, Daisuke [JP/JP]; (JP) (US only).
OKADA, Mitsuyoshi [JP/JP]; (JP) (US only).
TANABE, Toshitaka [JP/JP]; (JP) (US only).
SUDA, Akihiko [JP/JP]; (JP) (US only).
SATO, Masanao [JP/JP]; (JP) (US only).
CHIBA, Akiya [JP/JP]; (JP) (US only).
MORIKAWA, Akira [JP/JP]; (JP) (US only).
ORI, Hirotaka [JP/JP]; (JP) (US only)
Inventors: SUZUKI, Hiromasa; (JP).
YOSHIDA, Takeru; (JP).
MIURA, Masahide; (JP).
AOKI, Yuki; (JP).
CHINZEI, Isao; (JP).
SAITO, Yoshinori; (JP).
OCHIAI, Daisuke; (JP).
OKADA, Mitsuyoshi; (JP).
TANABE, Toshitaka; (JP).
SUDA, Akihiko; (JP).
SATO, Masanao; (JP).
CHIBA, Akiya; (JP).
MORIKAWA, Akira; (JP).
ORI, Hirotaka; (JP)
Agent: HIRAKI, Yusuke; (JP)
Priority Data:
2014-251878 12.12.2014 JP
Title (EN) EXHAUST GAS PURIFYING CATALYST
(FR) CATALYSEUR DE PURIFICATION DE GAZ D'ÉCHAPPEMENT
Abstract: front page image
(EN)The object of the present invention is to provide an exhaust gas purifying catalyst that can achieve high purification performance while suppressing H2S emissions. The object is solved by an exhaust gas purifying catalyst in which the top layer of a catalyst coating layer comprises a ceria-zirconia composite oxide having a pyrochlore-type ordered array structure, in which the ceria-zirconia composite oxide contains at least one additional element selected from the group consisting of praseodymium, lanthanum, and yttrium at 0.5 to 5.0 mol% in relation to the total cation amount, and the molar ratio of (cerium + additional element) : (zirconium) is within the range from 43 : 57 to 48 : 52.
(FR)L'objet de la présente invention consiste à fournir un catalyseur de purification de gaz d'échappement pouvant posséder des performances de purification élevées tout en supprimant les émissions de H2S. L'objectif est atteint grâce à un catalyseur de purification de gaz d'échappement dans lequel la couche supérieure d'une couche de revêtement catalytique comprend un oxyde composite oxyde de cérium-oxyde de zirconium ayant une structure en réseau ordonnée de type pyrochlore, où l'oxyde composite oxyde de cérium-oxyde de zirconium contient au moins un élément supplémentaire choisi dans le groupe constitué par le praséodyme, le lanthane, et l'yttrium à raison de 0,5 à 5,0 % en moles par rapport à la quantité totale de cations, et le rapport molaire (cérium + élément supplémentaire):(zirconium) se situe dans la plage de 43:57 à 48:52.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)