Patent US3257469A successfully refreshed from Google Patents.
US3257469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alcohols by selective hydrolysis of olefins
Assignee: Sinclair Research Inc
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Filing: 1962-04-02
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Granted: 1966-06-21
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Expires: 1982-04-02
Abstract
No abstract record available.
Inventors
- 👤 Stephen M Kovach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:54
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/02; B01J31/06; B01J31/08; B01J31/10; B01J2231/00; B01J2231/30; B01J2231/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A PROCESS FOR THE SELECTIVE HYDRATION TO TERTIARY AMYL ALCOHOL OF AN ISOAMYLENE FEED CONTAINING NORMAL AMYLENES WHICH COMPRISES HYDRATING SAID FEED WITH WATER IN THE PRESENCE OF A SULFONATED HYDROGEN ION EXHCANGE RESIN CATALYST AND IN THE PRESENCE OF ISOPROPANOL, SAID HYDRATION BEING CONDUCTED AT A TEMPERATURE OF ABOUT 100 TO 400*F., A PRESSURE OF FROM 0 TO 2000 P.S.I.G. AND A MOLE RATIO OF WATER TO OLEFIN FEED OF ABOUT 1-20:1, SAID SULFONATED HYDROGEN ION EXCHANGE RESIN CATALYST BEING PRESENT IN AN AMOUNT SUFFICIENT TO PROVIDE A LIQUID HOURLY SPACE VELOCITY OF ABOUT .01 TO 20 AND THE ISOPROPANOL BEING PRESENT IN AN AMOUNT OF ABOUT 1 TO 20 VOLUMES PER VOLUME OF WATER.
Claim 2
Dependent Claim
116 words
A PROCESS FOR THE SELECTIVE HYDRATION TO TERTIARY AMYL ALCOHOL OF AN ISOAMYLENE FEED CONTAINING NORMAL AMYLENES WHICH COMPRISES HYDRATING SAID FEED WITH WATER IN THE PRESENCE OF A SULFONATED HYDROGEN ION EXHCANGE RESIN CATALYST AND IN THE PRESENCE OF ISOPROPANOL, SAID HYDRATION BEING CONDUCTED AT A TEMPERATURE OF ABOUT 100 TO 400*F., A PRESSURE OF FROM 0 TO 2000 P.S.I.G. AND A MOLE RATIO OF WATER TO OLEFIN FEED OF ABOUT 1-20:1, SAID SULFONATED HYDROGEN ION EXCHANGE RESIN CATALYST BEING PRESENT IN AN AMOUNT SUFFICIENT TO PROVIDE A LIQUID HOURLY SPACE VELOCITY OF ABOUT .01 TO 20 AND THE ISOPROPANOL BEING PRESENT IN AN AMOUNT OF ABOUT 1 TO 20 VOLUMES PER VOLUME OF WATER.
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) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |