Method of preparing silicoaluminophosphate compositions using a reagent containing both quaternary ammonium and silicon reactive sites in the same molecule
US5227151A · kind A · utility
7Cited by
6References
8Claims
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Key dates
| Filing date | Nov 15, 1991 |
| Grant date | Jul 13, 1993 |
| Priority date | — |
| Expiry date | Nov 15, 2011 |
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 and quaternary ammonium-functionalized organosiliconate directing agent wherein the oxides of silicon are provided at least in part by said directing agent, e.g., N-trimethoxysilylpropyl-N,N,N-trimethylammonium chloride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.