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Title:
ZEOLITE PRODUCTION METHOD, ZEOLITE OBTAINED BY MEANS OF SAME, AND HONEYCOMB CATALYST PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2016/208734
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a zeolite production method that can achieve, at low cost, a CHA-type zeolite that has high crystallinity and small particle diameter. The present invention is a method for producing a zeolite that has a CHA structure, that has a SiO2/Al2O3 composition ratio (SAR) of less than 15, and that has an average particle diameter of 0.5 μm or less. The present invention includes: a synthesis step for synthesizing a zeolite that has a CHA structure using a raw material composition that includes a Si source, an Al source, an alkali source, and a structure regulator; a micronizing step for micronizing the CHA-type zeolite that was obtained by means of the synthesis step; and a recrystallization step for mixing the CHA-type zeolite that was micronized as a result of the micronizing step with a solution that includes a Si source and an alkali source and then performing a hydration treatment.

Inventors:
USUI TOYOHIRO (JP)
Application Number:
PCT/JP2016/068870
Publication Date:
December 29, 2016
Filing Date:
June 24, 2016
Export Citation:
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Assignee:
IBIDEN CO LTD (JP)
International Classes:
C01B39/48; B01D53/94; B01J29/76; B01J35/04; B01J37/30; F01N3/28
Foreign References:
JP2013049602A2013-03-14
JP2014139124A2014-07-31
JP2013095653A2013-05-20
JP2012211066A2012-11-01
JP2007296521A2007-11-15
JP2014210221A2014-11-13
JP2015101506A2015-06-04
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P. C. (JP)
Patent business corporation glory patent firm (JP)
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