Title:
HONEYCOMB CARRIER FOR EXHAUST GAS CLARIFICATION CATALYST AND METHOD FOR PRODUCTION THEREOF
Document Type and Number:
WIPO Patent Application WO/2005/009918
Kind Code:
A1
Abstract:
A honeycomb carrier for an exhaust gas clarification catalyst, characterized in that it comprises, as the material thereof, an aluminum magnesium titanate sintered product produced by a method comprising firing, at 1000 to 1700 °C, a formed product from a raw material mixture containing 100 parts by mass in terms of oxides of a mixture containing an Mg-containing compound, an Al -containing compound and a Ti-containing compound in a metal component ratio between Mg, Al and Ti being the same as that in aluminum magnesium titanate represented by the empirical formula: MgxAl2(1+x)Ti(1+x)O5 [wherein, 0 < x < 1] and 1 to 10 parts by mass of alkali feldspar represented by the empirical formula:(NayK1-y)AlSi3O8 [wherein 0 ≤ y ≤ 1]; and a method for producing the honeycomb carrier. The above carrier is excellent in the resistance to heat and thermal shock, mechanical strength and the resistance to thermal decomposition, and exhibits great resistance to the corrosion by a catalyst carried thereby, and thus can be suitably used with stability for a long period of time as a carrier for use in a clarification catalyst, in particular, for an automobile exhaust gas containing NOx and the like.
Inventors:
Fukuda, Tsutomu (785-1, Kunikane Kamiso-cho, Kakogawa-sh, Hyogo 13, 67512, JP)
Fukuda, Masahiro (94-1-603, Ochiai Makishima-cho, Uji-sh, Kyoto 41, 61100, JP)
Fukuda, Masaaki (785-1, Kunikane Kamiso-cho, Kakogawa-sh, Hyogo 13, 67512, JP)
Yoko, Toshinobu (31-1-120, Todomonnomae Uji-sh, Kyoto 13, 61100, JP)
Takahashi, Masahide (Kyodai Shokuinshukusha 1-113, Gokasho Kanyuchi Uji-sh, Kyoto 11, 61100, JP)
Fukuda, Masahiro (94-1-603, Ochiai Makishima-cho, Uji-sh, Kyoto 41, 61100, JP)
Fukuda, Masaaki (785-1, Kunikane Kamiso-cho, Kakogawa-sh, Hyogo 13, 67512, JP)
Yoko, Toshinobu (31-1-120, Todomonnomae Uji-sh, Kyoto 13, 61100, JP)
Takahashi, Masahide (Kyodai Shokuinshukusha 1-113, Gokasho Kanyuchi Uji-sh, Kyoto 11, 61100, JP)
Application Number:
PCT/JP2004/011203
Publication Date:
February 03, 2005
Filing Date:
July 29, 2004
Export Citation:
Assignee:
OHCERA CO., LTD. (1-19, Uchihonmachi 2-chome Chuou-ku, Osaka-sh, Osaka 26, 54000, JP)
Fukuda, Tsutomu (785-1, Kunikane Kamiso-cho, Kakogawa-sh, Hyogo 13, 67512, JP)
Fukuda, Masahiro (94-1-603, Ochiai Makishima-cho, Uji-sh, Kyoto 41, 61100, JP)
Fukuda, Masaaki (785-1, Kunikane Kamiso-cho, Kakogawa-sh, Hyogo 13, 67512, JP)
Yoko, Toshinobu (31-1-120, Todomonnomae Uji-sh, Kyoto 13, 61100, JP)
Takahashi, Masahide (Kyodai Shokuinshukusha 1-113, Gokasho Kanyuchi Uji-sh, Kyoto 11, 61100, JP)
Fukuda, Tsutomu (785-1, Kunikane Kamiso-cho, Kakogawa-sh, Hyogo 13, 67512, JP)
Fukuda, Masahiro (94-1-603, Ochiai Makishima-cho, Uji-sh, Kyoto 41, 61100, JP)
Fukuda, Masaaki (785-1, Kunikane Kamiso-cho, Kakogawa-sh, Hyogo 13, 67512, JP)
Yoko, Toshinobu (31-1-120, Todomonnomae Uji-sh, Kyoto 13, 61100, JP)
Takahashi, Masahide (Kyodai Shokuinshukusha 1-113, Gokasho Kanyuchi Uji-sh, Kyoto 11, 61100, JP)
International Classes:
F01N3/28; B01D53/86; B01D53/94; B01J21/16; B01J23/04; B01J32/00; B01J35/04; C04B35/46; C04B35/478; C04B38/00; (IPC1-7): C04B35/478; B01J35/04; B01D53/94
Attorney, Agent or Firm:
Senmyo, Kenji (Torimoto Kogyo Bldg, 38 Kanda-Higashimatsushitacho,, Chiyoda-k, Tokyo 42, 10100, JP)
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