A Silico alumino phosphate and the nitrogen oxide reduction catalyst using this

Title:

A Silico alumino phosphate and the nitrogen oxide reduction catalyst using this

Document Type and Number:

Japanese Patent JP5983290

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a silicoaluminophosphate which causes little decrease in a rate of reduction of a nitrogen oxide reduction catalyst even when exposed in a moisture-containing atmosphere.SOLUTION: A silicoaluminophosphate having a CHA structure and an AEI structure contains at least one metal selected from the group consisting of group VIIIB elements, group IB elements and group VIIB elements in the periodic table, and has a ratio of the AEI structure of more than 50%. In the silicoaluminophosphate, the at least one metal selected from the group consisting of group VIIIB elements, group IB elements and group VIIB elements in the periodic table is preferably copper.

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Inventors:

Hiroshi Okaba
Tokunaga Keisuke
Yoshikazu Nagai
Hidekazu Aoyama

Application Number:

JP2012230882A

Publication Date:

August 31, 2016

Filing Date:

October 18, 2012

Export Citation:

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