US2967204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogenation of aromatics with a tungsten and nickel sulfide, supported on alumina, catalyst composite
Assignee: Gulf Research and Development Co
•
Filing: 1958-08-04
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Granted: 1961-01-03
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Expires: 1978-08-04
Abstract
No abstract record available.
Inventors
- 👤 Beuther Harold
- 👤 Richard A Flinn
- 👤 Joseph B Mckinley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:14
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/20; C; C10; C10G; C10G45/00; C10G45/44; C10G45/46; C10G45/48; C10G45/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A PROCESS COMPRISING PASSING AN AROMATIC CONTAINING MATERIAL AND HYDROGEN AT A TEMPERATURE OF 550* TO 850* F. AND A PRESSURE OF 500 TO 4000 POUNDS PER SQUARE INCH GAUGE OVER A SULFIDES CATALYST COMPRISING BETWEEN ABOUT 15 AND 26 PERCENT BY WEIGHT OF TUNGSTEN AND NICKEL SUPPORTED UPON ALUMINA, SAID CATALYST PREPARED BY IMPREGNATING THE ALUMINA WITH TUNGSTEN BEFORE IMPREGNATING WITH NICKEL AND SULFIDING THE METALS BY PASSING A MIXTURE CONTAINING HYDROGEN AND HYDROGEN SULFIDE IN A HYDROGEN-HYDROGEN SULFIDE VOLUME RATIO BETWEEN 2:1 AND 12:1 OVER THE IMPREGNATED METALS AT A TEMPERATURE BETWEEN ABOUT 600* AND 700* F. FOR A TIME DURATION OF ABOUT 4 TO 12 HOURS.
Claim 2
Dependent Claim
109 words
A PROCESS COMPRISING PASSING AN AROMATIC CONTAINING MATERIAL AND HYDROGEN AT A TEMPERATURE OF 550* TO 850* F. AND A PRESSURE OF 500 TO 4000 POUNDS PER SQUARE INCH GAUGE OVER A SULFIDES CATALYST COMPRISING BETWEEN ABOUT 15 AND 26 PERCENT BY WEIGHT OF TUNGSTEN AND NICKEL SUPPORTED UPON ALUMINA, SAID CATALYST PREPARED BY IMPREGNATING THE ALUMINA WITH TUNGSTEN BEFORE IMPREGNATING WITH NICKEL AND SULFIDING THE METALS BY PASSING A MIXTURE CONTAINING HYDROGEN AND HYDROGEN SULFIDE IN A HYDROGEN-HYDROGEN SULFIDE VOLUME RATIO BETWEEN 2:1 AND 12:1 OVER THE IMPREGNATED METALS AT A TEMPERATURE BETWEEN ABOUT 600* AND 700* F. FOR A TIME DURATION OF ABOUT 4 TO 12 HOURS.
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) | 1964-01-03 | 1964-07-04 | 1965-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-03 | 1968-07-04 | 1969-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-03 | 1972-07-04 | 1973-01-03 | $7700.00 | Window Closed / Lapsed |