US3801656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic hydration of olefins
Assignee: Millennium Petrochemicals Inc
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Filing: 1971-09-30
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Granted: 1974-04-02
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Expires: 1991-09-30
Abstract
Abstract ETHANOL IS PREPARED BY CONTACTING ETHYLENE AND LIQUID WATER OR AN AQUEOUS SOLUTION OF AN INERT SOLVENT WITH A CATALYTIC AMOUNT OF A PREREDUCED CATALYST CONSISTING OF MOLYBDENUM OXIDE ON A ZORCONIA SUPPORT AT 250*-350* C., 750=5000 P.S.I., AND A MOLE RATIO OF WATER TO ETHYLENE OF 1:5 TO 25:1.
Inventors
- 👤 O Frampton
- 👤 J Feldman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:21
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/16; B01J23/00; B01J23/16; B01J23/24; B01J23/28; B01J27/00; B01J27/14; B01J27/186; B01J27/188; B01J27/19
Claims Analysis
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References 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) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |