ZEOLITE PROMOTED V/TiW CATALYSTS
US-2015224486-A1 · Aug 13, 2015 · US
Exhaust gas purification catalyst
US9789474B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9789474-B2 |
| Application number | US-201615090994-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 5, 2016 |
| Priority date | Apr 13, 2015 |
| Publication date | Oct 17, 2017 |
| Grant date | Oct 17, 2017 |
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- Title
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- Abstract
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Abstract
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The problem to be solved by the present invention is to provide a good NOx selective reduction catalyst. To solve the problem is a NOx selective reduction catalyst containing a composite oxide of Ti, Ce, W, and P or S.
First claim
Opening claim text (preview).
What is claimed is: 1. A NOx selective reduction catalyst, having a core/shell particle structure comprising a core part and a shell part, the core part containing copper-supported zeolite; and the shell part containing a composite oxide of Ti, Ce, W and S. 2. A NOx selective reduction catalyst, having a core/shell particle structure comprising a core part and a shell part: the core part containing copper-supported zeolite; and the shell part consisting of a composite oxide of Ti, Ce, W, and one selected from P or S.
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Classifications
Nanoparticles · CPC title
X-ray diffraction · CPC title
Scanning electron microscopy; Transmission electron microscopy · CPC title
characterised by their shape or configuration · CPC title
Mixed oxides other than spinels, e.g. perovskite · CPC title
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Frequently asked questions
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- What does patent US9789474B2 cover?
- The problem to be solved by the present invention is to provide a good NOx selective reduction catalyst. To solve the problem is a NOx selective reduction catalyst containing a composite oxide of Ti, Ce, W, and P or S.
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B01J29/076. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Oct 17 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).