Title:
Al-P COMPOSITE OXIDE AND EXHAUST GAS PURIFYING CATALYST USING SAME
Document Type and Number:
WIPO Patent Application WO/2022/131070
Kind Code:
A1
Abstract:
[Problem] To provide a means for improving the oxidation performance of CO and HC in a low temperature range even after high-temperature endurance test with respect to an exhaust gas purifying catalyst. [Solution] An Al-P composite oxide which contains aluminum oxide and phosphorus oxide, wherein, relative to the total mass of the Al-P composite oxide, the content of the aluminum oxide is from 79% by mass to 97% by mass in terms of Al2O3, the content of zirconium oxide is 0% by mass, or more than 0% by mass but not more than 7% by mass in terms of ZrO2, and the content of the phosphorus oxide is from 3% by mass to 14%by mass in terms of PO4.
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Inventors:
KUMON TATSUYA (JP)
GOTO YOSUKE (JP)
MAEJIMA YUSAKU (JP)
GOTO YOSUKE (JP)
MAEJIMA YUSAKU (JP)
Application Number:
PCT/JP2021/044868
Publication Date:
June 23, 2022
Filing Date:
December 07, 2021
Export Citation:
Assignee:
UMICORE SHOKUBAI JAPAN CO LTD (JP)
International Classes:
B01D53/94; B01J29/74; B01J27/16; B01J35/10; F01N3/10
Domestic Patent References:
| WO2009142180A1 | 2009-11-26 |
Foreign References:
| JPH06171915A | 1994-06-21 | |||
| JP2010221117A | 2010-10-07 | |||
| JP2002028491A | 2002-01-29 | |||
| JP2017023920A | 2017-02-02 | |||
| JP2004167354A | 2004-06-17 | |||
| JP2020208473A |
Attorney, Agent or Firm:
HATTA & ASSOCIATES (JP)
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