Title:
A honeycomb catalyst and a diesel-particulate filter
Document Type and Number:
Japanese Patent JP6245896
Kind Code:
B2
Abstract:
The present invention provides a honeycomb catalyst that is excellent in NOx purifying performance and is capable of suppressing damage of a honeycomb unit during use of an exhaust gas purifying apparatus. The honeycomb catalyst of the present invention includes a honeycomb unit with a plurality of through holes that are arranged in parallel in a longitudinal direction and partitions that are provided between the through holes, wherein the honeycomb unit includes a first zeolite, a second zeolite, and an inorganic binder; the first zeolite is a CHA-structured aluminosilicate having a Si/Al ratio of 15 to 50; the second zeolite is a silicoaluminophosphate having a Si/(Si + Al + P) ratio of 0.1 to 0.25; and the volume ratio of the first zeolite to the second zeolite (first zeolite:second zeolite) is 75:25 to 90:10.
Inventors:
Masaya Sato
Umemoto Godai
Natsuki Onya
Umemoto Godai
Natsuki Onya
Application Number:
JP2013175927A
Publication Date:
December 13, 2017
Filing Date:
August 27, 2013
Export Citation:
Assignee:
IBIDEN CO.,LTD.
International Classes:
B01J35/04; B01D53/94; B01J29/76; B01J29/80; B01J29/85; C01B39/02; C01B39/54
Domestic Patent References:
| JP2012136407A | ||||
| JP2012213754A | ||||
| JP2011116627A |
Foreign References:
| WO2013038372A2 | ||||
| WO2013114172A1 |
Attorney, Agent or Firm:
Atomi International Patent Office