Title:
銅及びアルカリ土類金属を担持したゼオライト
Document Type and Number:
Japanese Patent JP5895526
Kind Code:
B2
Abstract:
A chabazite-type zeolite having copper and an alkali earth metal supported thereon. The alkali earth metal is preferably at least one metal selected from the group consisting of calcium, magnesium and barium. Moreover, the SiO 2 /Al 2 O 3 molar ratio is preferably from 10 to 50, and the copper/aluminum atomic ratio is preferably from 0.15 to 0.25. This type of chabazite-type zeolite exhibits a higher nitrogen oxide purification rate after a hydrothermal durability treatment than those of conventional chabazite-type zeolite catalysts on which only copper is supported.
Inventors:
Ito Yuuge
Tokunaga Keisuke
Tokunaga Keisuke
Application Number:
JP2011288380A
Publication Date:
March 30, 2016
Filing Date:
December 28, 2011
Export Citation:
Assignee:
Tosoh Corporation
International Classes:
C01B39/46; B01D53/94; B01J29/76
Domestic Patent References:
| JP3131345A | ||||
| JP2010519038A | ||||
| JP2001525241A |
Other References:
OUKI, S. K. et al.,Performance of natural zeolites for the treatment of mixed metal-contaminated effluents,Waste Manage. Res.,1997年,Vol. 15, No. 4,p. 383-394