Patent US2851400A successfully refreshed from Google Patents.
US2851400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of treating hydrocracking catalysts with ammonia
Assignee: Phillips Petroleum Co
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Filing: 1953-08-24
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Granted: 1958-09-09
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Expires: 1973-08-24
Abstract
No abstract record available.
Inventors
- 👤 John W Myers
- 👤 Jr Lloyd C Mabry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:08
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
THE PROCESS FOR ACTIVATING A HYDROCRACKING CATALYST COMPRISING IRON OXIDE AND AT LEAST ONE METAL OXIDE OF THE GROUP CONSISTING OF THE OXIDES OF MO,CRW,U, AND V DEPOSITED ON A CARRIER OR SUPPORT WHICH COMPRISES HEATING SAID CATALYST IN A HYDROGEN-CONTAINING AMBIENT FREE OF CATALYST POISONS AT A TEMPERATURE IN THE RANGE OF 950* TO 1300*F. FOR A PERIOD OF AT LEAST ONE-HALF HOUR AND ALSO HEATING SAID CATALYST IN AN AMMONIA-CONTAINING AMBIENT FREE OF CATALYST POISONS AT A TEMPERATURE IN SAID RANGE FOR A TIME IN SAID PERIOD SO AS TO INCREASE THE ACTIVITY OF SAID CATALYST FOR HYDROCRACKING HYDROCARBONS.
Claim 2
Dependent Claim
101 words
THE PROCESS FOR ACTIVATING A HYDROCRACKING CATALYST COMPRISING IRON OXIDE AND AT LEAST ONE METAL OXIDE OF THE GROUP CONSISTING OF THE OXIDES OF MO,CRW,U, AND V DEPOSITED ON A CARRIER OR SUPPORT WHICH COMPRISES HEATING SAID CATALYST IN A HYDROGEN-CONTAINING AMBIENT FREE OF CATALYST POISONS AT A TEMPERATURE IN THE RANGE OF 950* TO 1300*F. FOR A PERIOD OF AT LEAST ONE-HALF HOUR AND ALSO HEATING SAID CATALYST IN AN AMMONIA-CONTAINING AMBIENT FREE OF CATALYST POISONS AT A TEMPERATURE IN SAID RANGE FOR A TIME IN SAID PERIOD SO AS TO INCREASE THE ACTIVITY OF SAID CATALYST FOR HYDROCRACKING HYDROCARBONS.
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) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |