US3308196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidative dehydrogenation process
Assignee: Petro Tex Chemical Corp
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Filing: 1965-10-22
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Granted: 1967-03-07
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Bajars Laimonis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:24
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/42; C07C5/54; C07C5/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
THE METHOD FOR DEHYDROGENATING HYDROCARBON COMPOUNDS HAVING 2 TO 20 CARBON ATOMS TO PRODUCE A DEHYDROGENATED PRODUCT HAVING THE SAME NUMBER OF CARBON ATOMS AND THE SAME STRUCTURE WITH THE EXCEPTION OF THE VAPOR PHASE AT A TEMPERATURE OF ABOVE 400*C. A HYDROCARBON COMPOUNDS HAVING A >CH-CH< GROUP WITH OXYGEN IN A MOLAR RATIO OF GREATER THAN ONEFOURTH MOL OF OXYGEN PER MOL OF SAID HYDROCARBON COMPOUND, BROMINE IN AN AMOUNT OF LESS THAN 0.5 MOL OF BROMINE PER MOL OF SAID OXYGEN TO THE MOLS OF SAID BROMINE BEING AT LEAST 2.5, THE PARTIAL PRESSURE OF SAID HYDROCARBON COMPOUND BEING EQUIVALENT TO LESS THAN ONE-HALF THE TOTAL PRESSURE IN THE PRESENCE OF A CATALYST COMPRISING AS ITS MAIN ACTIVE CONSTITUENT (1) A COMPOUND SELECTED FROM THE GROUP CONSISTING OF OXIDES, SALTS AND HYDROXIDES OF ALKALI AND ALKALINE EARTH METALS AND MIXTURES THEREOF, AND (2) A METAL OR METAL COMPOUND OF PERIODIC TABLE GROUPS IVB, VB AND VIB AND MIXTURES THEREOF.
Claim 2
Independent Claim
161 words
THE METHOD FOR DEHYDROGENATING HYDROCARBON COMPOUNDS HAVING 2 TO 20 CARBON ATOMS TO PRODUCE A DEHYDROGENATED PRODUCT HAVING THE SAME NUMBER OF CARBON ATOMS AND THE SAME STRUCTURE WITH THE EXCEPTION OF THE VAPOR PHASE AT A TEMPERATURE OF ABOVE 400*C. A HYDROCARBON COMPOUNDS HAVING A >CH-CH< GROUP WITH OXYGEN IN A MOLAR RATIO OF GREATER THAN ONEFOURTH MOL OF OXYGEN PER MOL OF SAID HYDROCARBON COMPOUND, BROMINE IN AN AMOUNT OF LESS THAN 0.5 MOL OF BROMINE PER MOL OF SAID OXYGEN TO THE MOLS OF SAID BROMINE BEING AT LEAST 2.5, THE PARTIAL PRESSURE OF SAID HYDROCARBON COMPOUND BEING EQUIVALENT TO LESS THAN ONE-HALF THE TOTAL PRESSURE IN THE PRESENCE OF A CATALYST COMPRISING AS ITS MAIN ACTIVE CONSTITUENT (1) A COMPOUND SELECTED FROM THE GROUP CONSISTING OF OXIDES, SALTS AND HYDROXIDES OF ALKALI AND ALKALINE EARTH METALS AND MIXTURES THEREOF, AND (2) A METAL OR METAL COMPOUND OF PERIODIC TABLE GROUPS IVB, VB AND VIB AND MIXTURES THEREOF.
References Cited (Backward Citations)
US2719171A
Cited
US3207806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |