Patent US2908674A successfully refreshed from Google Patents.
Patent US3159688A successfully refreshed from Google Patents.
US3159688A
Expired / Lapsed
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Catalytic oxidative dehydrogenation of monoolefins
Assignee: Shell USA Inc
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Filing: 1961-03-22
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Granted: 1964-12-01
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Expires: 1981-03-22
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Jennings
- 👤 Hervey H Voge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:56
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/42; C07C5/48; B; B01; B01J; B01J23/00; B01J23/16; B01J23/24; B01J23/28; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J27/00; B01J27/02; B01J27/057; B01J27/0573; B01J27/0576
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
PROCESS FOR THE OXIDATIVE DEHYDROGENATION OF A MONOOLEFIN TO ITS CORRESPONDING DIOLEFIN WHICH COMPRISES PASSING A HYDROCARBON FEED CONTAINING A SUBSTANTIAL AMOUNT OF SAID MONOOLEFIN IN THE VAPOR PHASE TOGETHER WITH FROM ABOUT 0.3 TO ABOUT 2 MOLES OF OXYGEN PER MOLE OF MONOOLEFIN REACTANT THROUGH A REACTION ZONE IN CONTACT WITH A CATALYST COMPRISING AN OXYGEN-CONTAINING COMPOUND OF A GROUP VIB ELEMENT OF THE PERIODIC CHART OF THE ELEMENTS HAVING AN ATOMIC NUMBER OF FROM 42 THROUGH 74 PROMOTED WITH AN ELEMENT FROM GROUP VA OF THE PERIODIC CHART OF THE ELEMENTS HAVING AN ATOMIC NUMBER FROM 33 THROUGH 51, THE AMOUNT OF PROMOTOR, CALCULATED AS THE OXIDE, BEING FROM 0.1% TO ABOUT 20% BY WEIGHT BASED ON OXIDE CATALYST MASS UNDER CONDITIONS INCLUDING A TEMPERATURE OF BETWEEN ABOUT 300 AND 600*C. TO OXIDATIVELY DEHYDROGENATE SAID MONOOLEFIN TO ITS CORRESPONDING DIOLEFIN.
Claim 2
Dependent Claim
142 words
PROCESS FOR THE OXIDATIVE DEHYDROGENATION OF A MONOOLEFIN TO ITS CORRESPONDING DIOLEFIN WHICH COMPRISES PASSING A HYDROCARBON FEED CONTAINING A SUBSTANTIAL AMOUNT OF SAID MONOOLEFIN IN THE VAPOR PHASE TOGETHER WITH FROM ABOUT 0.3 TO ABOUT 2 MOLES OF OXYGEN PER MOLE OF MONOOLEFIN REACTANT THROUGH A REACTION ZONE IN CONTACT WITH A CATALYST COMPRISING AN OXYGEN-CONTAINING COMPOUND OF A GROUP VIB ELEMENT OF THE PERIODIC CHART OF THE ELEMENTS HAVING AN ATOMIC NUMBER OF FROM 42 THROUGH 74 PROMOTED WITH AN ELEMENT FROM GROUP VA OF THE PERIODIC CHART OF THE ELEMENTS HAVING AN ATOMIC NUMBER FROM 33 THROUGH 51, THE AMOUNT OF PROMOTOR, CALCULATED AS THE OXIDE, BEING FROM 0.1% TO ABOUT 20% BY WEIGHT BASED ON OXIDE CATALYST MASS UNDER CONDITIONS INCLUDING A TEMPERATURE OF BETWEEN ABOUT 300 AND 600*C. TO OXIDATIVELY DEHYDROGENATE SAID MONOOLEFIN TO ITS CORRESPONDING DIOLEFIN.
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) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |