Reduced maximum reducibility temperature zirconium oxide and cerium oxide based composition, method for the production and use thereof as a catalyst
US7767617B2 · kind B2 · utility
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24Claims
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Key dates
| Filing date | Mar 17, 2004 |
| Grant date | Aug 3, 2010 |
| Priority date | — |
| Expiry date | Aug 11, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A composition is based on zirconium oxide and cerium oxide with a proportion of zirconium oxide amounting to at least 50% by mass, having a maximum reducibility temperature of no more than 500° C. and a specific surface of at least 40 m2/g after 6 hours calcination at 500° C. in the form of a tetragonal phase. The composition can be used as a catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.