Stable zeolite of low unit cell constant and method of making same
US5242677A · kind A · utility
11Cited by
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5Claims
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Key dates
| Filing date | Jun 11, 1992 |
| Grant date | Sep 7, 1993 |
| Priority date | — |
| Expiry date | Jun 11, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/21
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Y-type zeolites with unit cell constants of less than 24.14 .ANG. are prepared by improving the method of dealumination and aluminum ion exchange. Zeolites with such low unit cell constants have not been known previously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.