Title:
CHABAZITE-TYPE ZEOLITE AND METHOD FOR PRODUCING THE SAME, LOW-SILICA ZEOLITE HAVING COPPER SUPPORTED, NITROGEN OXIDE REDUCTION REMOVAL CATALYST INCLUDING THE ZEOLITE, AND METHOD FOR REDUCTION REMOVING NITROGEN OXIDE USING THE CATALYST
Document Type and Number:
Japanese Patent JP2012211066
Kind Code:
A
Abstract:
To provide a chabazite-type zeolite having a high Al content as a substrate of a catalyst support or an adsorbent from the standpoint of the number of ion exchange sites or the solid acid amount, and having high durability and heat resistance; a method for producing the same; and a new chabazite-type zeolite having copper supported.
In the chabazite-type zeolite, the mole ratio of SiO2/Al2O3 is less than 15 and the average particle diameter is ≥1.0 and ≤8.0 μm. The chabazite-type zeolite has excellent durability and heat resistance. In the chabazite-type zeolite having copper supported, the rate of reduction of the nitrogen oxide at low temperature is improved compared to the conventional chabazite-type zeolite having copper supported.
Inventors:
ARIGA KO
AOYAMA HIDEKAZU
ITO YUKI
AOYAMA HIDEKAZU
ITO YUKI
Application Number:
JP2011279974A
Publication Date:
November 01, 2012
Filing Date:
December 21, 2011
Export Citation:
Assignee:
TOSOH CORP
International Classes:
C01B39/48; B01D53/94; B01J29/76; B01J32/00
Domestic Patent References:
| JPS5860612A | 1983-04-11 | |||
| JP2010280516A | 2010-12-16 | |||
| JP2010163349A | 2010-07-29 | |||
| JP2011102209A | 2011-05-26 |
Foreign References:
| GB868846A | 1961-05-25 | |||
| WO2010054034A2 | 2010-05-14 | |||
| WO2010074040A1 | 2010-07-01 | |||
| US3030181A | 1962-04-17 | |||
| US4544538A | 1985-10-01 |
Other References:
FICKEL, D. W. ET AL.: "Copper Coordination in Cu-SSZ-13 and Cu-SSZ-16 Investigated by Variable-Temperature XRD", J. PHYS. CHEM. C, vol. 114, JPN6015021755, 28 December 2009 (2009-12-28), pages 1633 - 1640, XP002670366, ISSN: 0003086259, DOI: 10.1021/JP9105025