Title:
METHOD FOR PRODUCING AEI ZEOLITE
Document Type and Number:
WIPO Patent Application WO/2020/241668
Kind Code:
A1
Abstract:
The present invention provides at least one of: a production method by which an AEI zeolite having a molar ratio of silica to alumina suitable for a nitrogen oxide reduction catalyst and a carrier thereof is able to be obtained with high yield by crystallization in a shorter time in comparison to conventional production methods of AEI zeolite, wherein a crystalline aluminosilicate is not used as a starting material; and a method for producing an AEI zeolite, which is promising for industrial applications. A method for producing an AEI zeolite, which is characterized by comprising a step wherein after subjecting an amorphous composition containing an amorphous silica source, an amorphous alumina source, an alkali source and water to a hydrothermal treatment, a starting material composition that is obtained by mixing the amorphous composition and an organic structure-directing agent is crystallized.
Inventors:
ISHIKAWA TOMOYA (JP)
YAMASAKI YOSHITAKA (JP)
YAMASAKI YOSHITAKA (JP)
Application Number:
PCT/JP2020/020865
Publication Date:
December 03, 2020
Filing Date:
May 27, 2020
Export Citation:
Assignee:
TOSOH CORP (JP)
International Classes:
C01B39/48
Foreign References:
| JP2017048105A | 2017-03-09 | |||
| JP2017081809A | 2017-05-18 | |||
| JP2017039638A | 2017-02-23 | |||
| JP2017036204A | 2017-02-16 | |||
| US5958370A | 1999-09-28 | |||
| JP2017048105A | 2017-03-09 | |||
| JP2017036204A | 2017-02-16 | |||
| JP2017039638A | 2017-02-23 | |||
| JP2019100637A | 2019-06-24 |
Other References:
See also references of EP 3978437A4
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