Catalytic process for dehydration of alcohols
Abstract
Abstract A PROCESS FOR THE DEHYDRATION OF ALCOHOLS, E.G., OF ETHANOL TO PRODUCE ETHYLENE COMPRISING VAPORIZING ETHANOL IN THE PRESENCE OF A NON-LINEAR POLYMER CATALYST COMPOSITION CONSISTING ESSENTIALLY OF A RECURRING UNIT HAVING THE FOLLOWING STRUCTURAL FORMULA: (HO)2-P(=O)-R-SI(-O(-))2- WHEREIN R IS AN UNSUBSTITUTED OR SUBSTITUTED STRAIGHT OR BRANCHED CHAIN DIVALENT SATURATED ALKYLENE RADICAL HAVING 2 TO 10 CARBON ATOMS OR AN UNSUBSTITUTED OR SUBSTITUTED DIVALENT ARYL RADICAL HAVING 1 TO 3 BENZENE RINGS WHEREIN THE SUBSTITUENTS FOR THE ALKYLENE RADICAL CAN BE HALOGEN OR A PHENYL RADICAL AND THE SUBSTITUENTS FOR THE ARYL RADICAL CAN BE HALOGEN OR STRAIGHT OR BRANCHED CHAIN SATURATED ALKYL RADICALS HAVING 1 TO 5 CARBON ATOMS; AND RECOVERING ETHYLENE.
Inventors
- 👤 F Young
- 👤 L Pennington
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |