US3211800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of dehydrogenation
Assignee: Petro Tex Chemical Corp
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Filing: 1962-12-13
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Granted: 1965-10-12
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Expires: 1982-12-13
Abstract
No abstract record available.
Inventors
- 👤 Bajars Laimonis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:21
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/42; C07C5/54; C07C5/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
THE METHOD OF DEHYDROGENATING HYDROCARBONS OF 4 TO 6 CARBON ATOMS WHICH COMPRISES HEATING IN THE VAPOR PHASE AT A TEMPERATURE OF AT LEAST 450*C. AN ALIPHATIC HYDROCARBON OF 4 TO 6 CAROBN ATOMS WITH OXYGEN IN A MOLAR RATIO OF ABOVE ABOUT ONE-FOURTH MOL OF OXYGEN PER MOL OF SAID HYDROCARBON, FROM ABOUT 0.01 TO LESS THAN 0.5 MOL OF CHLORINE PER MOL OF SAID HYDROCARBON, THE PRESSURE OF SAID HYDROCARBON BEING EQUIVALENT TO LESS THAN ABOUT 6 INCHES OF MERCURY AT ONE ATMOSPHERE TOTAL PRESSURE WITH A CATALYST COMPRISING A MEMBER SELECTED FROM THE GROUP CONSISTING OF METALS, OXIDES, HYDROXIDES AND SALTS OF COPPER, ZINC, CADMINIUM, TIN, ANTIMONY, BISMUTH, AND MIXTURES THEREOF, THE SAID COPPER, ZINC, CADMIUM, TIN, ANTIMONY, BISMUTH, AND MIXTURES THEREOF, CONSTITUTING AT LEAST FIFTY ATOMIC WEIGHT PERCENT OF ANY CATIONS IN THE SUFRACE EXPOSED TO THE REACTION GASES, THE RATIO OF THE MOLS OF SAID OXYGEN TO THE MOLS OF SAID CHLORINE BEING GREATER THAN 3 MOLS OF OXYGEN PER MOL OF CHLORINE.
Claim 2
Independent Claim
168 words
THE METHOD OF DEHYDROGENATING HYDROCARBONS OF 4 TO 6 CARBON ATOMS WHICH COMPRISES HEATING IN THE VAPOR PHASE AT A TEMPERATURE OF AT LEAST 450*C. AN ALIPHATIC HYDROCARBON OF 4 TO 6 CAROBN ATOMS WITH OXYGEN IN A MOLAR RATIO OF ABOVE ABOUT ONE-FOURTH MOL OF OXYGEN PER MOL OF SAID HYDROCARBON, FROM ABOUT 0.01 TO LESS THAN 0.5 MOL OF CHLORINE PER MOL OF SAID HYDROCARBON, THE PRESSURE OF SAID HYDROCARBON BEING EQUIVALENT TO LESS THAN ABOUT 6 INCHES OF MERCURY AT ONE ATMOSPHERE TOTAL PRESSURE WITH A CATALYST COMPRISING A MEMBER SELECTED FROM THE GROUP CONSISTING OF METALS, OXIDES, HYDROXIDES AND SALTS OF COPPER, ZINC, CADMINIUM, TIN, ANTIMONY, BISMUTH, AND MIXTURES THEREOF, THE SAID COPPER, ZINC, CADMIUM, TIN, ANTIMONY, BISMUTH, AND MIXTURES THEREOF, CONSTITUTING AT LEAST FIFTY ATOMIC WEIGHT PERCENT OF ANY CATIONS IN THE SUFRACE EXPOSED TO THE REACTION GASES, THE RATIO OF THE MOLS OF SAID OXYGEN TO THE MOLS OF SAID CHLORINE BEING GREATER THAN 3 MOLS OF OXYGEN PER MOL OF CHLORINE.
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) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |