US3274285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for dehydrogenating
Assignee: Petro Tex Chemical Corp
•
Filing: 1965-06-11
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Granted: 1966-09-20
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Expires: 1985-06-11
Abstract
No abstract record available.
Inventors
- 👤 Bajars Laimonis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:46
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/42; C07C5/54; C07C5/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
THE METHOD FOR DEHYDROGENATING ALIPHATIC HYDROCARBON OF 4 TO 6 CARBON ATOMS WHICH COMPRISES HEATING IN THE VAPOR PHASE AT A TEMPERATURE OF FROM ABOUT 450* C. TO 850*C. AN ALIPHATIC HYDROCARBON OF 4 TO 6 CARBON ATOMS WITH OXYGEN IN A MOLAR RATIO OF AT LEAST ONE-FOURTH MOL OF OXYGEN PER MOL OF SAID HYDROCARBON AND CHLORINE IN A MOLAR RATIO OF LESS THAN 0.5 MOL OF CHLORINE PER MOL OF SAID HYDROCARBON, THE PARTIAL PRESSURE OF SAID HYDROCARBON BEING EQUIVALENT TO LESS THAN ABOUT ONE-FIFTH ATMOSPHERE AT A TOTAL PRESSURE OF ONE ATMOSPHERE, WITH A MATERIAL SELECTED FROM THE GROUP CONSISTING OF METALS, SALTS, OXIDES AND HYDROXIDES OF COBALT AND MIXTURES THEREOF IN A CATALYTIC AMOUNT, THE RATIO OF THE GRAM MOLS OF THE SAID OXYGEN TO THE GRAM ATOMS OF SAID CHLORINE BEING AT LEAST 1.50.
Claim 2
Independent Claim
139 words
THE METHOD FOR DEHYDROGENATING ALIPHATIC HYDROCARBON OF 4 TO 6 CARBON ATOMS WHICH COMPRISES HEATING IN THE VAPOR PHASE AT A TEMPERATURE OF FROM ABOUT 450* C. TO 850*C. AN ALIPHATIC HYDROCARBON OF 4 TO 6 CARBON ATOMS WITH OXYGEN IN A MOLAR RATIO OF AT LEAST ONE-FOURTH MOL OF OXYGEN PER MOL OF SAID HYDROCARBON AND CHLORINE IN A MOLAR RATIO OF LESS THAN 0.5 MOL OF CHLORINE PER MOL OF SAID HYDROCARBON, THE PARTIAL PRESSURE OF SAID HYDROCARBON BEING EQUIVALENT TO LESS THAN ABOUT ONE-FIFTH ATMOSPHERE AT A TOTAL PRESSURE OF ONE ATMOSPHERE, WITH A MATERIAL SELECTED FROM THE GROUP CONSISTING OF METALS, SALTS, OXIDES AND HYDROXIDES OF COBALT AND MIXTURES THEREOF IN A CATALYTIC AMOUNT, THE RATIO OF THE GRAM MOLS OF THE SAID OXYGEN TO THE GRAM ATOMS OF SAID CHLORINE BEING AT LEAST 1.50.
References Cited (Backward Citations)
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US2971995A
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US3028440A
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US3205280A
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US3173962A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |