US2991320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic dehydrogenation process
Assignee: Shell USA Inc
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Filing: 1960-04-07
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Granted: 1961-07-04
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Expires: 1980-04-07
Abstract
No abstract record available.
Inventors
- 👤 George W Hearne
- 👤 Kenneth E Furman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:30
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/42; C07C5/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
PROCESS FOR SELECTIVE DEHYDROGENATION OF A MONOOLEFIN ALIPHATIC HYDROCARBON REACTANT HAVING FROM 4 TO 7 NON-QUATERNARY CONTIGUOUS CARBON ATOMS TO PRODUCE AS THE MAJOR REACTION PRODUCT A HYDROCARBON HAVING THE SAME NUMBER OF CARBON ATOMS BUT AT LEAST ONE MORE ETHYLENIC BOND WHICH COMPRISES PASSING THE ALIPHATIC HYDROCARBON IN VAPOR PHASE TOGETHER WITH FROM ABOUT 0.3 TO 2 MOLES OF OXYGEN PER MOLE OF REACTANT THROUGH A REACTION ZONE IN CONTACT WITH A SOLID CATALYST THEREFOR CONSISTING ESSENTIALLY OF MOLYBDENUM OXIDE AND BISMUTH OXIDE IN CATALYTICALLY EFFECTIVE PROPORTIONS TO PROVIDE ESSENTIALLY BISMUTH MOLYBDATE AT A TEMPERATURE BETWEEN ABOUT 650*F. AND 1050*F. AND AT A PRESSURE BETWEEN ABOUT 5 AND 300 P.S.I.A., AND RECOVERING THE SECOND-MENTIONED HYDROCARBON FROM THE REACTION ZONE EFFLUENT.
Claim 2
Dependent Claim
121 words
PROCESS FOR SELECTIVE DEHYDROGENATION OF A MONOOLEFIN ALIPHATIC HYDROCARBON REACTANT HAVING FROM 4 TO 7 NON-QUATERNARY CONTIGUOUS CARBON ATOMS TO PRODUCE AS THE MAJOR REACTION PRODUCT A HYDROCARBON HAVING THE SAME NUMBER OF CARBON ATOMS BUT AT LEAST ONE MORE ETHYLENIC BOND WHICH COMPRISES PASSING THE ALIPHATIC HYDROCARBON IN VAPOR PHASE TOGETHER WITH FROM ABOUT 0.3 TO 2 MOLES OF OXYGEN PER MOLE OF REACTANT THROUGH A REACTION ZONE IN CONTACT WITH A SOLID CATALYST THEREFOR CONSISTING ESSENTIALLY OF MOLYBDENUM OXIDE AND BISMUTH OXIDE IN CATALYTICALLY EFFECTIVE PROPORTIONS TO PROVIDE ESSENTIALLY BISMUTH MOLYBDATE AT A TEMPERATURE BETWEEN ABOUT 650*F. AND 1050*F. AND AT A PRESSURE BETWEEN ABOUT 5 AND 300 P.S.I.A., AND RECOVERING THE SECOND-MENTIONED HYDROCARBON FROM THE REACTION ZONE EFFLUENT.
References Cited (Backward Citations)
US2941007A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |