排ガス浄化触媒用ハニカム担体及びその製造方法

Title:

排ガス浄化触媒用ハニカム担体及びその製造方法

Document Type and Number:

Japanese Patent JP4609831

Kind Code:

B2

Abstract:

To provide a honeycomb carrier used for supporting a cleaning catalyst for cleaning an exhaust gas or the like, especially an NOx-containing exhaust gas of a car, excellent in heat resistance, thermal shock resistance, mechanical strength and thermal decomposition resistance, having large corrosion resistance against the catalyst and stably usable over a long period of time, and its manufacturing method.

The material of the honeycomb carrier for the exhaust gas cleaning catalyst comprises an aluminum magnesium titanate sintered body obtained by baking a molded body formed from the following raw material mixture at 1,000-1,700°C. The raw material mixture contains 100 pts. mass of a mixture, which contains an Mg-containing compound, an Al-containing compound and a Ti-containing compound in the same metal component ratio as the metal component ratio in aluminum magnesium titanate represented by the composition formula: MgxAl2(1+x)TiO5(0yK1-y)AlSi3O8(0≤y≤1).

Inventors:

Tsutomu Fukuda
Masahiro Fukuda
Masaaki Fukuda
Yokono Toshinobu
Masahide Takahashi

Application Number:

JP2003203271A

Publication Date:

January 12, 2011

Filing Date:

July 29, 2003

Export Citation:

Click for automatic bibliography generation Help

Assignee:

Ocella Co., Ltd.

International Classes:

B01J21/16; B01D53/86; F01N3/28; B01D53/94; B01J32/00; B01J35/04; C04B35/46

Domestic Patent References:

JP62256757A
JP2002145659A
JP57003767A
JP2000273444A

Other References:

BUSCAGLIA,V. et al,Decomposition of Al2TiO5-MgTi2O5 solid solutions: a thermodynamic approach,Journal of Materials Science,1996年 1月,Vol.31, No.19,p.5009-5016,DOI: 10.1007/BF00355899
BUSCAGLIA,V. et al,The Effect of MgAl2O4 on the Formation Kinetics of Al2Tio5 from Al2O3 and TiO2 Fine Powders,Journal of Materials Science,1996年 1月,Vol.31, No.7,p.1715-1724,DOI:10.1007/BF00372183
Huang,Y.X. et al,Thermal and mechanical properties of aluminum titanate-mullite composites,J. Mater. Res.,MATER. RES. SOC.,2000年 2月,vol.15,No.2,p.357-363
Giordano,L. et al,Microstructure and thermal expansion of Al2TiO5-MgTi2O5 solid solutions obtained by reaction sintering,Journal of the European Ceramic Society,Elsevier,2002年10月,Vol.22, Issue 11,p.1811-1822

Attorney, Agent or Firm:

Kenji Izumina
Toshiharu Ogawa
Ryozo Yamamoto

Previous Patent: 半導体装置の製造方法

Next Patent: クランプ一体成形型フラットケーブル