Title:
COMPOSITE PARTICLE, HONEYCOMB STRUCTURE, METHOD FOR PRODUCING SAME, AND EXHAUST GAS PURIFICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/024545
Kind Code:
A1
Abstract:
The objectives of/problems addressed by the present invention are: to provide a composite particle that has superior NOx purification performance and that can suppress contraction resulting from water adsorption and expansion resulting from water desorption; and to provide a honeycomb structure that has superior NOx purification performance and that can suppress breakage of a honeycomb unit resulting from the adsorption or desorption of water, a method for producing the honeycomb structure, and an exhaust gas purification device having the honeycomb structure. Also, the composite particles, resulting from adhering a metal oxide to silicoaluminophosphate particles of which the ratio of the quantity of Si to the sum of the quantities of Al and P is 0.16-0.33 inclusive, are characterized by the specific surface area being 250-450 m2/g inclusive, and the outer surface area being 30-90 m2/g inclusive.
Inventors:
NISHIO YOSHITOYO (JP)
MURAKAMI TAKUNARI (JP)
MURAKAMI TAKUNARI (JP)
Application Number:
PCT/JP2011/068704
Publication Date:
February 21, 2013
Filing Date:
August 18, 2011
Export Citation:
Assignee:
IBIDEN CO LTD (JP)
NISHIO YOSHITOYO (JP)
MURAKAMI TAKUNARI (JP)
NISHIO YOSHITOYO (JP)
MURAKAMI TAKUNARI (JP)
International Classes:
B01D53/86; C01B39/54; B01D53/94; B01J29/85; B01J35/04; B01J35/06; B01J35/10; B01J37/00; B01J37/02; B01J37/30; C01B37/08
Foreign References:
| US20100310440A1 | 2010-12-09 | |||
| JP2011510899A | 2011-04-07 | |||
| JP2011125851A | 2011-06-30 | |||
| JP2011125846A | 2011-06-30 | |||
| JP2011125849A | 2011-06-30 | |||
| JP2011125848A | 2011-06-30 | |||
| JP2006273710A | 2006-10-12 | |||
| JP2000344690A | 2000-12-12 |
Other References:
See also references of EP 2746225A4
Attorney, Agent or Firm:
ITOH, TADAHIKO (JP)
Tadahiko Ito (JP)
Tadahiko Ito (JP)
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Claims: