US2807652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ether preparation and recovery from direct hydration of olefins
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1955-11-01
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Granted: 1957-09-24
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Expires: 1975-11-01
Abstract
No abstract record available.
Inventors
- 👤 Carrier E Wendell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:03
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/02; C07C43/03; C07C43/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A PROCESS FOR PRODUCING A HYDROCARBON SOLUTION CONTAINING ISOPROYL ETHER WHICH COMPRISES SUBJECTING A MIXTURE CONTAINING A SUBSTANTIAL EXCESS OF GASEOUS PROPYLENE TO VAPOR PHASE REACTION WITH WATER VAPOR IN A REACTION ZONE IN THE PRESENCE OF A SOLID HYDRATION CATALYST AT TEMPERATURES IN THE RANGE OF 200*F. TO 700*F. AND AT PRESSURES IN THE RANGE OF 100 TO 2500 P.S.I.G., PASSING A RESULTING GASEOUS PRODUCT FROM THE REACTION ZONE INTO AN ABSORPTION ZONE, CONTACTING SAID GASEOUS PRODUCT WITH A LIQUID NAPHTHA HYDROCARBON FRACTION SOLVENT AT SUBSTANTIALLY THE TEMPERATURE AND PRESSURE OF HYDRATION TO EFFECT ABSORPTION OF THE ETHER AND ALCOHOL PRODUCT, SEPARATING UNABSORBED GASES FROM THE HYDROCARBON SOLUTION CONTAINING THE ETHER AND RECYCLING A MAJOR PORTION OF THE SEPARATE UNABSORBED GASES SUBSTANTIALLY UNDER HYDRATION PRESSURE TO SAID REACTION ZONE.
Claim 2
Dependent Claim
130 words
A PROCESS FOR PRODUCING A HYDROCARBON SOLUTION CONTAINING ISOPROYL ETHER WHICH COMPRISES SUBJECTING A MIXTURE CONTAINING A SUBSTANTIAL EXCESS OF GASEOUS PROPYLENE TO VAPOR PHASE REACTION WITH WATER VAPOR IN A REACTION ZONE IN THE PRESENCE OF A SOLID HYDRATION CATALYST AT TEMPERATURES IN THE RANGE OF 200*F. TO 700*F. AND AT PRESSURES IN THE RANGE OF 100 TO 2500 P.S.I.G., PASSING A RESULTING GASEOUS PRODUCT FROM THE REACTION ZONE INTO AN ABSORPTION ZONE, CONTACTING SAID GASEOUS PRODUCT WITH A LIQUID NAPHTHA HYDROCARBON FRACTION SOLVENT AT SUBSTANTIALLY THE TEMPERATURE AND PRESSURE OF HYDRATION TO EFFECT ABSORPTION OF THE ETHER AND ALCOHOL PRODUCT, SEPARATING UNABSORBED GASES FROM THE HYDROCARBON SOLUTION CONTAINING THE ETHER AND RECYCLING A MAJOR PORTION OF THE SEPARATE UNABSORBED GASES SUBSTANTIALLY UNDER HYDRATION PRESSURE TO SAID REACTION ZONE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-23 | 1961-03-25 | 1961-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-23 | 1965-03-25 | 1965-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-23 | 1969-03-25 | 1969-09-24 | $7700.00 | Window Closed / Lapsed |