US2810759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic hydration of olefins
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1954-03-29
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Granted: 1957-10-22
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Expires: 1974-03-29
Abstract
No abstract record available.
Inventors
- 👤 Delmer L Cottle
- 👤 David W Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:08
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/28; B01J23/00; B01J23/70; B01J23/72
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
75 words
A PROCESS FOR PREPARING A HYDRATION CATALYST WHICH COMPRISES MIXING 1 TO 300 PARTS OF 60 TO 90% ORTHOPHOSPHORIC ACID WITH 100 PARTS OF PARTICULATE METALLIC COPPER, HEATING THE MIXTURE AT A TEMPERATURE OF ABOUT 100 TO 400*C. FOR ABOUT 0.5 TO 5 HOURS UNTIL ABOUT 0.1 TO 2 PERCENT OF THE COPPER IS DISSOLVED, DECANTING THE LIQUID FROM THE TREATED COPPER, WASHING THE RE-RESULTING ACTIVATED COPPER WITH WATER UNTIL THE COPPER BECOMES SUBSTANTIALLY NEUTRAL.
Claim 2
Dependent Claim
75 words
A PROCESS FOR PREPARING A HYDRATION CATALYST WHICH COMPRISES MIXING 1 TO 300 PARTS OF 60 TO 90% ORTHOPHOSPHORIC ACID WITH 100 PARTS OF PARTICULATE METALLIC COPPER, HEATING THE MIXTURE AT A TEMPERATURE OF ABOUT 100 TO 400*C. FOR ABOUT 0.5 TO 5 HOURS UNTIL ABOUT 0.1 TO 2 PERCENT OF THE COPPER IS DISSOLVED, DECANTING THE LIQUID FROM THE TREATED COPPER, WASHING THE RE-RESULTING ACTIVATED COPPER WITH WATER UNTIL THE COPPER BECOMES SUBSTANTIALLY NEUTRAL.
Claim 3
Dependent Claim
63 words
A PROCESS FOR HYDRATING A C2 TO C4 OLEFIN FEED WHICH COMPRISES CONTACTING WATER WITH SAID OLEFIN FEED IN A RATIO OF ABOUT 0.5 TO 3 MOLE OF WATER PER MOLE OF OLEFIN AT A TEMPERATURE OF ABOUT 100 TO 400*C. AND A PRESSURE OF 500 TO 5000 P.S.I.G. IN THE PRESENCE OF A COPPER CATALYST PREPARED BY THE PROCESS OF CLAIM 1.
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) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |