Title:
MATERIAL FOR EXHAUST GAS PURIFICATION CATALYST, CATALYST COMPOSITION FOR EXHAUST GAS PURIFICATION, AND EXHAUST GAS PURIFICATION CATALYST
Document Type and Number:
WIPO Patent Application WO/2019/194187
Kind Code:
A1
Abstract:
This material for an exhaust gas purification catalyst comprises the complex oxide indicated by formula (I). This catalyst composition for exhaust gas purification includes said complex oxide and a catalytic activity component. Formula (I): M1MnO3 (In this formula, M1 indicates at least one type of rare earth element selected from Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu). M1 in formula (I) is preferably a rare earth element selected from Er, Tm, Yb, and Lu. The crystal structure of the complex oxide indicated by formula (I) is preferably a hexagonal structure.
Inventors:
TAKEUCHI RYO (JP)
ENDO YOSHINORI (JP)
IWAKURA HIRONORI (JP)
TANAKA TSUNEHIRO (JP)
HOSOKAWA SABURO (JP)
ENDO YOSHINORI (JP)
IWAKURA HIRONORI (JP)
TANAKA TSUNEHIRO (JP)
HOSOKAWA SABURO (JP)
Application Number:
PCT/JP2019/014655
Publication Date:
October 10, 2019
Filing Date:
April 02, 2019
Export Citation:
Assignee:
MITSUI MINING & SMELTING CO (JP)
International Classes:
B01J23/656; B01D53/94; B01J23/34; B01J37/02; F01N3/10
Foreign References:
| JP2007216099A | 2007-08-30 | |||
| JP2011189306A | 2011-09-29 | |||
| JPH0986928A | 1997-03-31 | |||
| JP2015136684A | 2015-07-30 |
Attorney, Agent or Firm:
SHOWA INTERNATIONAL PATENT FIRM (JP)
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