Method of synthesizing an olefin product from an oxygenate feedstock utilizing silicoaluminophosphate molecular sieves
US8049053B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Jan 28, 2011 |
| Grant date | Nov 1, 2011 |
| Priority date | — |
| Expiry date | Jan 28, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S502/514
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
In a method of synthesizing a silicoaluminophosphate molecular sieve, a synthesis mixture is prepared by combining a source of phosphorus and at least one organic directing agent; and then introducing a source of aluminum into the combination of the phosphorus source and organic directing agent, wherein the temperature of the combination is less than or equal to 50° C. when addition of the source of aluminum begins. After addition of a source of silicon, the synthesis mixture is heated to a crystallization temperature of between about 100° C. and about 300° C. and the molecular sieve is recovered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.