STABILIZED MICROPOROUS CRYSTALLINE MATERIAL, MANUFACTURING METHOD THEREFOR AND APPLICATION METHOD FOR SELECTIVE CATALYTIC REDUCTION OF NOx

Japanese Patent JP2017141154

A

PROBLEM TO BE SOLVED: To provide a microporous crystalline material and NOx selective reduction catalyst inn an exhaust gas, having high water thermal stability.SOLUTION: There is provided a microporous crystalline material having an aperture of 3 to 5Å, containing a first metal such as alkali earth and a second metal such as iron, having molar ratio of silica to alumina (SAR) of 3 to 10 and synthesized without using an organic structure directing agent. A crystal structure has a double 6-membered ring (d6r)basic unit and a 8-membered ring aperture and having a structure codes of CHA, LEV, AEI, AFT, EAB, ERI, KFI, SAT, TSC and SAV. There is provided a microporous crystalline material, where the first meta contain Mg, Ca, Sr, Ba, La, Ce, Pr, Nd, mixed rare earth oxide, K, Rb, Cs or a mixture thereof. There is provided a microporous crystalline material, where preferably atom ratio of the first metal is 0.05 to 0.80 and atom ratio of Ca is 0.05 to 0.50.SELECTED DRAWING: None

WO/2009/095547	METHOD FOR PREPARING A ZEOLITE OF THE ITH STRUCTURAL TYPE
JPH0617217	An amorphous silica alumina system spherical particle and its process

LI HONG-XIN
CORMIER WILLIAM E
MODEN BJORN

JP2017036467A

August 17, 2017

February 28, 2017

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PQ CORP

C01B39/46; B01D53/94; B01J29/76; B01J29/85; B01J37/02; B01J37/10; B01J37/30; C01B39/54; F01N3/08; F01N3/10

JP6104270B2	2017-03-29
JP2010524677A	2010-07-22
JP2004536756A	2004-12-09

WO2010054034A2

2010-05-14

Samejima Mutsumi
Junichi
Yamato Kento

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