Patent US4114935A successfully refreshed from Google Patents.
Patent US3268611A successfully refreshed from Google Patents.
US3268611A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for dehydrogenating hydrocarbons
Assignee: Petro Tex Chemical Corp
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Filing: 1965-06-11
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Granted: 1966-08-23
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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
2026-11-05 16:43
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/42; C07C5/54; C07C5/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
THE METHOD FOR THE DEHYDROGENATION OF AN ALIPHATIC HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF NBUTANE, N-BUTANE, AND MIXTURES THEREOR, TO PRODUCE AN UNSTURATED HYDROCARRBON OF THE SAME NUMBER OF CARBON ATOMS WHICH COMPRISES HEATING IN THE VAPOR PHASE AT A TEMPERATURE OF AT LEAST 450* C. THE ALIPHATIC HYDROCARBON WITH OXYGEN IN A MOLAR RATIO OF 0.40 TO 2 MOLS OF OXYGEN PER MOL OF THE ALIPHATIC HYDROCARBON, CHLORINE IN A MOLAR RATIO OF BETWEEN 0.01 AND 0.35 MOL OF CHLORINE PER MOL OF SAID HYDROCARBON, THE PARTIAL PRESSURE OF THE SAID HYDROCARBON BEING EQUIVALENT TO NO GREATER THAN 6 INCHES OF MERCUY AT A TOTAL PRESSURE OF ONE ATMOSPHERE, AND A CATALYST HAVING NICKLE OXIDE AS ITS MAIN ACTIVE CONSITUENT, THE RATIO OF THE MOLS OF SAID OXYGEN TO THE MOLS OF SAID CHLORINE BEING GREATER THAN THERE.
Claim 2
Independent Claim
140 words
THE METHOD FOR THE DEHYDROGENATION OF AN ALIPHATIC HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF NBUTANE, N-BUTANE, AND MIXTURES THEREOR, TO PRODUCE AN UNSTURATED HYDROCARRBON OF THE SAME NUMBER OF CARBON ATOMS WHICH COMPRISES HEATING IN THE VAPOR PHASE AT A TEMPERATURE OF AT LEAST 450* C. THE ALIPHATIC HYDROCARBON WITH OXYGEN IN A MOLAR RATIO OF 0.40 TO 2 MOLS OF OXYGEN PER MOL OF THE ALIPHATIC HYDROCARBON, CHLORINE IN A MOLAR RATIO OF BETWEEN 0.01 AND 0.35 MOL OF CHLORINE PER MOL OF SAID HYDROCARBON, THE PARTIAL PRESSURE OF THE SAID HYDROCARBON BEING EQUIVALENT TO NO GREATER THAN 6 INCHES OF MERCUY AT A TOTAL PRESSURE OF ONE ATMOSPHERE, AND A CATALYST HAVING NICKLE OXIDE AS ITS MAIN ACTIVE CONSITUENT, THE RATIO OF THE MOLS OF SAID OXYGEN TO THE MOLS OF SAID CHLORINE BEING GREATER THAN THERE.
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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |