Patent US3110746A successfully refreshed from Google Patents.
US3110746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidative dehydrogenation of monoolefins
Assignee: Shell USA Inc
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Filing: 1961-05-26
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Granted: 1963-11-12
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Expires: 1981-05-26
Abstract
No abstract record available.
Inventors
- 👤 Hervey H Voge
- 👤 Warren E Armstrong
- 👤 Lloyd B Ryland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:05
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/42; C07C5/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
PROCESS FOR THE SELECTIVE CATALYTIC OXIDATIVE DEHYDROGENATION OF A C4-7 MONOOLEFINIC ALIPHATIC HYDROCARBON HAVING NO QUATERNARY CARBON ATOMS TO PRODUCE AS THE MAJOR REACTION PRODUCT A HYDROCARBON HAVING THE SAME NUMBER OF CARBON ATOMS BUT AT LEAST ONE MORE ETHYLENIC DOUBLE BOND, WHICH COMPRISES PASSING THE ALIPHATIC HYDROCARBON IN VAPOR PHASE TOGETHER WITH FROM ABOUT 0.3 TO 2 MOLES OF OXYGEN PER MOL OF SAID OLEFINIC HYDROCARBON THROUGH A REACTION ZONE IN CONTACT WITH A SOLID CATALYST THEREFOR CONSISTING ESSENTIALLY OF A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF BISMUTH, IRON AND OXYGEN CONTAINING FROM ABOUT 12 ATOMS OF BISMUTH AND FROM ABOUT 1 TO ABOUT 12 ATOMS OF AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF PHOSPHORUS, MOLYBDENUM AND TUNGSTEN FOR EACH ATOM OF IRON AT A TEMPERATURE OF FROM ABOUT 250*C. TO 600*C. AND AT A PRESSURE OF FROM ABOUT 3 TO 150 P.S.I.A., WHEREBY THE SECOND-MENTIONED HYDROCARBON IS FORMED AS A REACTION PRODUCT.
Claim 2
Dependent Claim
155 words
PROCESS FOR THE SELECTIVE CATALYTIC OXIDATIVE DEHYDROGENATION OF A C4-7 MONOOLEFINIC ALIPHATIC HYDROCARBON HAVING NO QUATERNARY CARBON ATOMS TO PRODUCE AS THE MAJOR REACTION PRODUCT A HYDROCARBON HAVING THE SAME NUMBER OF CARBON ATOMS BUT AT LEAST ONE MORE ETHYLENIC DOUBLE BOND, WHICH COMPRISES PASSING THE ALIPHATIC HYDROCARBON IN VAPOR PHASE TOGETHER WITH FROM ABOUT 0.3 TO 2 MOLES OF OXYGEN PER MOL OF SAID OLEFINIC HYDROCARBON THROUGH A REACTION ZONE IN CONTACT WITH A SOLID CATALYST THEREFOR CONSISTING ESSENTIALLY OF A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF BISMUTH, IRON AND OXYGEN CONTAINING FROM ABOUT 12 ATOMS OF BISMUTH AND FROM ABOUT 1 TO ABOUT 12 ATOMS OF AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF PHOSPHORUS, MOLYBDENUM AND TUNGSTEN FOR EACH ATOM OF IRON AT A TEMPERATURE OF FROM ABOUT 250*C. TO 600*C. AND AT A PRESSURE OF FROM ABOUT 3 TO 150 P.S.I.A., WHEREBY THE SECOND-MENTIONED HYDROCARBON IS FORMED AS A REACTION PRODUCT.
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) | 1966-11-11 | 1967-05-13 | 1967-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-11 | 1971-05-13 | 1971-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-11 | 1975-05-13 | 1975-11-12 | $7700.00 | Window Closed / Lapsed |