Stabilized aggregates of small crystallites of zeolite Y
US8882993B2 · kind B2 · utility
1Cited by
28References
32Claims
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Key dates
| Filing date | Mar 6, 2012 |
| Grant date | Nov 11, 2014 |
| Priority date | — |
| Expiry date | Sep 2, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention relates to stabilized aggregates of small primary crystallites of zeolite Y that are clustered into larger secondary particles. At least 80% of the secondary particles may comprise at least 5 primary crystallites. The size of the primary crystallites may be at most about 0.5 micron, or at most about 0.3 micron, and the size of the secondary particles may be at least about 0.8 micron, or at least about 1.0 μm. The silica to alumina ratio of the resulting stabilized aggregated Y zeolite may be 4:1 or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.