US3207809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for dehydrogenation of aliphatic hydrocarbons
Assignee: Petro Tex Chemical Corp
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Filing: 1962-12-04
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Granted: 1965-09-21
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Expires: 1982-12-04
Abstract
No abstract record available.
Inventors
- 👤 Bajars Laimonis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:17
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/42; C07C5/54; C07C5/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
THE METHOD FOR DEHYDROGENATING ALIPHATIC HYDROCARBONS WHICH COMPRISES HEATING IN THE VAPOR PHASE AT A TEMPERATURE GREATER THAN 400*C. AN ALIPHATIC HYDROCARBON OF 4 TO 6 CARBON ATOMS WITH OXYGEN IN A MOLAR RATIO OF GREATER THAN ONE-FOURTH MOL OF OXYGEN PER MOL OF SAID SLIPHATIC HYDROCARBON, FROM AT LEAST ABOUT 0.001 TO 0.08 MOL OF IODINE PER MOL OF SAID ALIPHATIC HYDROCARBON, THE INITIAL PARTIAL PRESSURE OF SAID ALIPHATIC HYDROCARBON BEING EQUIVALENT TO LESS THAN ABOUT ONE-THIRD ATMOSPHERE AT ONE ATMOSPHERE TOTAL PRESSURE, WITH A SOLID CATALYST COMPRISING A MEMBER SELECTED FROM THE GROUP CONSISTING OF METALS, OXIDES, SALTS AND HYDROXIDES OF IRON, THE RATIO OF THE MOLS OF SIAD OXYGEN TO THE MOLS OF SAID IODINE BEING GREATER THAN TWO, THE SAID CATALYST BEING PRESENT IN AN AMOUNT OF AT LEAST 40 SQUARE FEET OF CATALYST SURFACE PER CUBIC FOOT OF REACTION ZONE.
Claim 2
Independent Claim
145 words
THE METHOD FOR DEHYDROGENATING ALIPHATIC HYDROCARBONS WHICH COMPRISES HEATING IN THE VAPOR PHASE AT A TEMPERATURE GREATER THAN 400*C. AN ALIPHATIC HYDROCARBON OF 4 TO 6 CARBON ATOMS WITH OXYGEN IN A MOLAR RATIO OF GREATER THAN ONE-FOURTH MOL OF OXYGEN PER MOL OF SAID SLIPHATIC HYDROCARBON, FROM AT LEAST ABOUT 0.001 TO 0.08 MOL OF IODINE PER MOL OF SAID ALIPHATIC HYDROCARBON, THE INITIAL PARTIAL PRESSURE OF SAID ALIPHATIC HYDROCARBON BEING EQUIVALENT TO LESS THAN ABOUT ONE-THIRD ATMOSPHERE AT ONE ATMOSPHERE TOTAL PRESSURE, WITH A SOLID CATALYST COMPRISING A MEMBER SELECTED FROM THE GROUP CONSISTING OF METALS, OXIDES, SALTS AND HYDROXIDES OF IRON, THE RATIO OF THE MOLS OF SIAD OXYGEN TO THE MOLS OF SAID IODINE BEING GREATER THAN TWO, THE SAID CATALYST BEING PRESENT IN AN AMOUNT OF AT LEAST 40 SQUARE FEET OF CATALYST SURFACE PER CUBIC FOOT OF REACTION ZONE.
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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |