US3164641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic process for the direct hydration of gaseous olefins to alcohols
Assignee: Montedison SpA
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Filing: 1959-08-10
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Granted: 1965-01-05
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Expires: 1979-08-10
Abstract
No abstract record available.
Inventors
- 👤 Bazzarin Pietro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:30
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/02; B01J21/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
90 words
A PROCESS FOR DIRECT HYDRATION OF A GASEOUS OLEFIN TO AN ALCOHOL, WHICH COMPRISES REACTING AN OLEFIN HYDROCARBON HAVING 2 TO 4 CARBON ATOMS WITH LIQUID WATER AT A TEMPERATURE OF ABOUT 180* TO 300*C. UNDER A PRESSURE OF BETWEEN ABOUT 100 TO 340 ATMOSPHERES IN THE PRESENCE OF AN AQUEOUS SUSPENSION OF A CATALYST SELECTED FROM THE GROUP CONSISTING OF AL(OH)3 IN THE FORM OF GEL, AND FINELY DIVIDED AL2O3, SAID CATALYST SUSPENSION HAVING A PH OF BETWEEN 2 AND 6 AS ADJUSTED BY ADDITION OF A MINERAL ACID.
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) | 1968-01-05 | 1968-07-06 | 1969-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-05 | 1972-07-06 | 1973-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-05 | 1976-07-06 | 1977-01-05 | $7700.00 | Window Closed / Lapsed |