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Title:
MANUFACTURING METHOD FOR SLURRY AND MANUFACTURING METHOD FOR EXHAUST GAS PURIFICATION CATALYST
Document Type and Number:
WIPO Patent Application WO/2023/181834
Kind Code:
A1
Abstract:
The present disclosure provides a manufacturing method for a slurry whereby milling time is shortened. The manufacturing method disclosed herein includes: a material preparation step for preparing a slurry manufacturing material containing a first inorganic oxide powder; a first milling step for milling the slurry manufacturing material using a first milling device provided with a first media until an average particle size, based on a laser diffraction/turbulence method, of the powder contained in the slurry manufacturing material is from 5 μｍ to 13 μｍ; and a second milling step for milling the slurry manufacturing material using a second milling device, provided with a second media for which an average particle size is smaller than that of the first media, until the average particle size, based on the laser diffraction/turbulence method, of the powder contained in the slurry manufacturing material is 1 μｍ or less. Furthermore, prior to the first milling step, or after the first milling step and prior to the second milling step, also included is mixing a second inorganic oxide powder into the slurry manufacturing material.

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Inventors:
OHARA ETSUKO (JP)
SHIMIZU MICHIO (JP)
OKUBO ATSUTAKA (JP)
Application Number:
PCT/JP2023/007815
Publication Date:
September 28, 2023
Filing Date:
March 02, 2023
Export Citation:
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Assignee:
CATALER CORP (JP)
International Classes:
B02C17/16; B01J37/02; B01J37/04
Foreign References:
JP2002200432A2002-07-16
JP2013043138A2013-03-04
JPH08173813A1996-07-09
JPH08173812A1996-07-09
JP2003305378A2003-10-28
JP2013215651A2013-10-24
JP2006095513A2006-04-13
JP2008270788A2008-11-06
JP2006212489A2006-08-17
Attorney, Agent or Firm:
ABE, Makoto (JP)
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