Patent US2500920A successfully refreshed from Google Patents.
US2500920A
Expired / Lapsed
US
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Process and catalyst for dehydrogenation of hydrocarbons
Assignee: Phillips Petroleum Co
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Filing: 1946-07-16
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Granted: 1950-03-21
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Expires: 1966-07-16
Abstract
No abstract record available.
Inventors
- 👤 Alvie B C Dague
- 👤 John W Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:44
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/32; C07C5/327; C07C5/333; C07C5/3332; B; B01; B01J; B01J23/00; B01J23/16; B01J23/24; B01J23/26; B01J23/28; C07C5/321; C07C5/322
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A PROCESS FOR THE DEHYDROGENATION OF AN ALIPHATIC PARAFFIN HYDROCARBON CONTAINING FOUR TO FIVE CARBON ATOMS PER MOLECULE WHICH COMPRISES CONTACTING SAID HYDROCARBON DILUTED WITH FROM 1 TO 20 VOLUMES OF STEAM PER VOLUME OF HYDROCARBON AT A TEMPERATURE WITHIN THE RANGE OF FROM ABOUT 1000*F. TO ABOUT 1400*F. WITH A CATALYST CONSISTING ESSENTIALLY OF A MAJOR PROPORTION OF ALUMINUM OXIDE SELECTED FROM THE GROUP CONSISTING OF MOLYBDENUM OXIDE, TUNGSTEN OXIDE AND VANADIUM OXIDE, AND A MINOR PROPORTION OF AN ACTIVATOR COMPRISING CHROMIUN OXIDE.
Claim 2
Dependent Claim
84 words
A PROCESS FOR THE DEHYDROGENATION OF AN ALIPHATIC PARAFFIN HYDROCARBON CONTAINING FOUR TO FIVE CARBON ATOMS PER MOLECULE WHICH COMPRISES CONTACTING SAID HYDROCARBON DILUTED WITH FROM 1 TO 20 VOLUMES OF STEAM PER VOLUME OF HYDROCARBON AT A TEMPERATURE WITHIN THE RANGE OF FROM ABOUT 1000*F. TO ABOUT 1400*F. WITH A CATALYST CONSISTING ESSENTIALLY OF A MAJOR PROPORTION OF ALUMINUM OXIDE SELECTED FROM THE GROUP CONSISTING OF MOLYBDENUM OXIDE, TUNGSTEN OXIDE AND VANADIUM OXIDE, AND A MINOR PROPORTION OF AN ACTIVATOR COMPRISING CHROMIUN OXIDE.
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) | 1953-03-20 | 1953-09-19 | 1954-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-20 | 1957-09-19 | 1958-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-20 | 1961-09-19 | 1962-03-21 | $7700.00 | Window Closed / Lapsed |