US3308181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidative dehydrogenation with added hydrogen
Assignee: Phillips Petroleum Co
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Filing: 1963-11-04
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Granted: 1967-03-07
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Expires: 1983-11-04
Abstract
No abstract record available.
Inventors
- 👤 Emory W Pitzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:51
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/42; C07C5/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
IN A CATALYTIC PROCESS FOR THE DEHYDROGENATION OF AN OLEFIN WHEREIN THE OLEFIN IS DEHYDROGENATED IN A DEHYDROGENATION ZONE IN THE PRESENCE OF A DEHYDROGENATION CATALYST CONSISTING ESSENTIALLY OF 51.0 TO 59.0 PERCENT BY WEIGHT POTASSIUM CARBONATE, 39.0 TO 47.0 PERCENT BY WEIGHT IRON OXIDE AND 1.0 TO 10.0 PERCENT BY WEIGHT CHROMIUM OXIDE, THE IMPROVEMENT COMPRISING INCLUDING HYDROGEN AND FROM 5 MOLS OF OXYGEN PER 100 MOLS OF SAID OLEFIN UP TO TWICE THE AMOUNT STOICHIOMETRICALLY REQUIRED FOR REACTION WITH THE HYDROGEN ADDED PLUS HYDROGEN FORMED IN THE REACTION WITH THE CHARGE OF OLEFIN TO SAID ZONE.
Claim 2
Dependent Claim
98 words
IN A CATALYTIC PROCESS FOR THE DEHYDROGENATION OF AN OLEFIN WHEREIN THE OLEFIN IS DEHYDROGENATED IN A DEHYDROGENATION ZONE IN THE PRESENCE OF A DEHYDROGENATION CATALYST CONSISTING ESSENTIALLY OF 51.0 TO 59.0 PERCENT BY WEIGHT POTASSIUM CARBONATE, 39.0 TO 47.0 PERCENT BY WEIGHT IRON OXIDE AND 1.0 TO 10.0 PERCENT BY WEIGHT CHROMIUM OXIDE, THE IMPROVEMENT COMPRISING INCLUDING HYDROGEN AND FROM 5 MOLS OF OXYGEN PER 100 MOLS OF SAID OLEFIN UP TO TWICE THE AMOUNT STOICHIOMETRICALLY REQUIRED FOR REACTION WITH THE HYDROGEN ADDED PLUS HYDROGEN FORMED IN THE REACTION WITH THE CHARGE OF OLEFIN TO SAID 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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |