US2658856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of refining and stabilizing waxes
Assignee: Standard Oil Development Co
•
Filing: 1951-07-27
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Granted: 1953-11-10
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Expires: 1971-07-27
Abstract
No abstract record available.
Inventors
- 👤 Stephen F Perry
- 👤 Randolph M Bailly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:25
CPC Classifications
C; C10; C10G; C10G73/00; C10G73/42; C10G73/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
PROCESS FOR THE PRODUCTION OF HIGH QUALITY PETROLEUM WAXES WHICH COMPRISES SUBJECTING A WAX FRACTON CONTAINING LESS THAN ABOUT 3% OF OIL TO CONTACT WITH A CATALYST COMPRISING 5 TO 13% BY WEIGHT OF MOLYBDENUM OXIDE ON ALUMINA AT A TEMPERATURE IN THE RANGE FROM ABOUT 400700* F., AND AT A PRESSURE IN THE RANGE FROM ABOUT 0-400 LBS. PER SQ. IN. WHEREIN A QUANTITY OF HYDROGEN IN THE RANGE FROM ABOUT 100-500 CU. FT. PER BARREL OF WAX IS UTILIZED, SAID CATALYST BEING CHARACTERIZED BY CONTAINING LESS THAN ABOUT 0.5% VOLATILE MATTER AND WHICH IS FURTHER CHARACTERIZED BY HAVING A PORE DIAMETER GREATER THAN 100 ANGSTROM UNITS, SAID CATALYST BEING PREPARED BY RECALCINATION AT A TEMPERATURE OF ABOUT 1200* F. OF A CATALYST COMPRISING MOLYBDENUM OXIDE ON ALUMINA.
Claim 2
Dependent Claim
129 words
PROCESS FOR THE PRODUCTION OF HIGH QUALITY PETROLEUM WAXES WHICH COMPRISES SUBJECTING A WAX FRACTON CONTAINING LESS THAN ABOUT 3% OF OIL TO CONTACT WITH A CATALYST COMPRISING 5 TO 13% BY WEIGHT OF MOLYBDENUM OXIDE ON ALUMINA AT A TEMPERATURE IN THE RANGE FROM ABOUT 400700* F., AND AT A PRESSURE IN THE RANGE FROM ABOUT 0-400 LBS. PER SQ. IN. WHEREIN A QUANTITY OF HYDROGEN IN THE RANGE FROM ABOUT 100-500 CU. FT. PER BARREL OF WAX IS UTILIZED, SAID CATALYST BEING CHARACTERIZED BY CONTAINING LESS THAN ABOUT 0.5% VOLATILE MATTER AND WHICH IS FURTHER CHARACTERIZED BY HAVING A PORE DIAMETER GREATER THAN 100 ANGSTROM UNITS, SAID CATALYST BEING PREPARED BY RECALCINATION AT A TEMPERATURE OF ABOUT 1200* F. OF A CATALYST COMPRISING MOLYBDENUM OXIDE ON ALUMINA.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |