Method of preparing silicoaluminophosphate compositions using a reagent containing both phosphorus and silicon reactive sites in the same molecule
US5279810A · kind A · utility
23Cited by
4References
5Claims
0Family size
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Key dates
| Filing date | Dec 20, 1990 |
| Grant date | Jan 18, 1994 |
| Priority date | — |
| Expiry date | Dec 20, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/30
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of preparing silicoaluminophosphate (SAPO) compositions from a forming mixture which comprises sources of oxides of silicon, aluminum and phosphorus wherein the oxides of silicon and phosphorus are provided at least in part by a reagent containing both phosphorus and silicon reactive sites in the same molecule; and maintaining the forming mixture under conditions sufficient to form said compositions. The reagent is preferably a phosphonate-functionalized organosiliconate such as diethylphosphatoethyltriethoxysilane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.