Chabazite-type molecular sieve, its synthesis and its use in the conversion of oxygenates to olefins
US7067108B2 · kind B2 · utility
18Cited by
7References
57Claims
0Family size
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Key dates
| Filing date | Dec 20, 2004 |
| Grant date | Jun 27, 2006 |
| Priority date | — |
| Expiry date | Dec 20, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/30
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The synthesis of a crystalline material, in particular a high silica zeolite, having a chabazite-type framework is aided by the addition to the synthesis mixture of seeds of an AEI framework-type material. The chabazite-type product has a relatively small crystal size and exhibits activity and selectivity in the conversion of methanol to lower olefins, especially ethylene and propylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.