Patent US2999071A successfully refreshed from Google Patents.
US2999071A
Expired / Lapsed
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Process for the reactivation of aluminum chloride-hydrocarbon catalyst
Assignee: Phillips Petroleum Co
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Filing: 1954-04-26
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Granted: 1961-09-05
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Expires: 1974-04-26
Abstract
No abstract record available.
Inventors
- 👤 Frederick E Frey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:44
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/06; C; C07; C07C; C07C15/00; C07C15/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
THE HYDROGENATION OF AN ALUMINUM CHLORIDE-HYDROCARBON CATALYST COMPLEX FOR A PERIOD FROM 0.5 TO 10 HOURS IN A HYDROGENATION ZONE IN THE PRESENCE OF A MINOR PROPORTION OF A CHLORIDE OF AT LEAST ONE OF THE METALS SELECTED FROM THE GROUP CONSISTING OF GALLIUM, INDIUM, THALLIUM AND TIN, WHILE MAINTAINING SAID CATALYST AT A TEMPERATURE IN THE RANGE FROM 175 TO 500*F., AND AT A PRESSURE IN THE RANGE FROM 500-4000 P.S.I.G., WHILE SUPPLYING HYDROGEN TO THE HYDROGENATION ZONE IN AN AMOUNT EFFECTIVE TO ACCOMPLISH SAID HYDROGENATION AND THERBY PRODUCING AN ALUMINUM CHLORIDE-HYDROCARBON CATALYST COMPLEX OF INCREASED ACTIVITY.
Claim 2
Dependent Claim
15 words
THE PROCESS OF CLAIM 4 WHEREIN HYDROGEN CHLORIDE IS SUPPLIED TO THE SAID HYDROGENATION 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) | 1964-09-04 | 1965-03-06 | 1965-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-04 | 1969-03-06 | 1969-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-04 | 1973-03-06 | 1973-09-05 | $7700.00 | Window Closed / Lapsed |