Catalyst for treating exhaust gas
US12201966B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Sep 12, 2022 |
| Grant date | Jan 21, 2025 |
| Priority date | — |
| Expiry date | Sep 30, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Catalyst compositions and methods of preparation comprising: exchanging a rare earth element into a molecular sieve; incorporating a promoter metal into the molecular sieve; wherein the rare earth element exchanging step and the promoter metal incorporation step are performed as separate steps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.