HONEYCOMB FILTER FOR CLARIFYING EXHAUST GAS AND METHOD FOR MANUFACTURE THEREOF

Title:

HONEYCOMB FILTER FOR CLARIFYING EXHAUST GAS AND METHOD FOR MANUFACTURE THEREOF

Document Type and Number:

WIPO Patent Application WO/2005/005019

Kind Code:

A1

Abstract:

A honeycomb filter for removing fine solid particles in an exhaust gas, characterized in that the material of the honeycomb filter is an aluminum magnesium titanate sintered compact produced by firing at 1000 to 1700°C a formed product from a mixture containing an Mg-containing compound, an Al-containing compound and a Ti-containing compound at a metal component ratio similar to that of Mg, Al and Ti in an aluminum magnesium titanate represented by the empirical formula: Mg_xAl_2(1-x)Ti_(1+x)O₅, wherein 0 < x < 1, or a mixture containing 100 parts by mass in terms of oxides of the above-mentioned mixture and 1 to 10 parts by mass of an alkali feldspar represented by the empirical formula: (Na_yK_1-y)AlSi₃O₈, wherein 0 ≤ y ≤ 1; and a method for manufacturing the honeycomb filter. The honeycomb filter is excellent in the resistance to heat and thermal shock and exhibits high resistance to thermal decomposition and great mechanical strength, and thus can be used with high stability at high and fluctuating temperatures.

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Inventors:

FUKUDA TSUTOMU (JP)
FUKUDA MASAHIRO (JP)
FUKUDA MASAAKI (JP)
YOKO TOSHINOBU (JP)
TAKAHASHI MASAHIDE (JP)

Application Number:

PCT/JP2004/010147

Publication Date:

January 20, 2005

Filing Date:

July 09, 2004

Export Citation:

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Assignee:

OHCERA CO LTD (JP)
FUKUDA TSUTOMU (JP)
FUKUDA MASAHIRO (JP)
FUKUDA MASAAKI (JP)
YOKO TOSHINOBU (JP)
TAKAHASHI MASAHIDE (JP)

International Classes:

B01D39/20; B01D46/24; C04B35/465; C04B35/478; C04B35/632; F01N3/022; (IPC1-7): B01D39/20

Foreign References:

JPH08290963A	1996-11-05
JPH05115721A	1993-05-14
JP2003515023A	2003-04-22
JPS56134560A	1981-10-21

Other References: