US3228992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehydrogenation of cyclohexanes
Assignee: Phillips Petroleum Co
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Filing: 1962-04-09
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Granted: 1966-01-11
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Expires: 1982-04-09
Abstract
No abstract record available.
Inventors
- 👤 John W Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:17
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/32; C07C5/327; C07C5/333; C07C5/3332
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A PROCESS FOR THE DEHYDROGENATION TO A CYCLOHEXENE OF A CYCLOHEXANE SELECTED FROM THE GROUP CONSISTING OF CYCLOHEXANE AND AN ALKYL CYCLOHEXANE CONTAINING 1-5 CARBON ATOMS IN THE ALKYL OVER A CATALYST CONSISTING ESSENTIALLY OF AN OXIDE SELECTED FROM THE GROUP CONSISTING OF OXIDES OF CHROMIUM, MOLYBDENUM, VANADIUM, AND TUNGSTEN SUPPORTED ON A NON-ACIDIC BASE SELECTED FROM THE GROUP CONSISTING OF ALUMINA, MAGNESIA AND SILICA, THE AMOUNT OF THE OXIDE BEING IN THE RANGE 2-0 PERCENT BY WEIGHT OF THE TOTAL CATALYST, AND THE PROCESS BEING CHARACTERIZED IN THAT IT IS CONDUCTED IN THE PRESENCE OF STEAM AT A TEMPERATURE IN THE RANGE 900-1200*F., EMPLOYING A STEAM TO HYDROCARBON MOL RATIO IN THE RANGE .5-20.
Claim 2
Dependent Claim
115 words
A PROCESS FOR THE DEHYDROGENATION TO A CYCLOHEXENE OF A CYCLOHEXANE SELECTED FROM THE GROUP CONSISTING OF CYCLOHEXANE AND AN ALKYL CYCLOHEXANE CONTAINING 1-5 CARBON ATOMS IN THE ALKYL OVER A CATALYST CONSISTING ESSENTIALLY OF AN OXIDE SELECTED FROM THE GROUP CONSISTING OF OXIDES OF CHROMIUM, MOLYBDENUM, VANADIUM, AND TUNGSTEN SUPPORTED ON A NON-ACIDIC BASE SELECTED FROM THE GROUP CONSISTING OF ALUMINA, MAGNESIA AND SILICA, THE AMOUNT OF THE OXIDE BEING IN THE RANGE 2-0 PERCENT BY WEIGHT OF THE TOTAL CATALYST, AND THE PROCESS BEING CHARACTERIZED IN THAT IT IS CONDUCTED IN THE PRESENCE OF STEAM AT A TEMPERATURE IN THE RANGE 900-1200*F., EMPLOYING A STEAM TO HYDROCARBON MOL RATIO IN THE RANGE .5-20.
References Cited (Backward Citations)
US2754345A
Cited
US2902522A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |