US3278626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of unsaturated hydrocarbons
Assignee: Petro Tex Chemical Corp
•
Filing: 1962-12-04
•
Granted: 1966-10-11
•
Expires: 1982-12-04
Abstract
No abstract record available.
Inventors
- 👤 Bajars Laimonis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:08
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/42; C07C5/54; C07C5/56; Y; Y10; Y10T; Y10T82/00; Y10T82/14; Y10T82/141; Y10T82/147
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 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 ALIPHATIC OF 0.35 TO 1.75 MOLS OF OXYGEN PER MOL OF SAID ALIPHATIC HYDROCARBON, FROM AT LEAST ABOUT 0.001 TO 0.08 MOL OF IODINE PER MOL OF SAID ALIPHATIC HYDROCARON, THE INITIAL PARTIAL PRESSURE OF SAID ALIPHATIC HYDROCARBON BEING EQUIVALENT TO NO GREATER THAN ABOUT 10 INCHES OF MERCURY AT ONE ATMOSPHERE TOTAL PRESSURE, WITH A CATALYST COMPRISING COPPER PHOSPHATE, WITH THE SAID COPPER PHOSPHATE CONSTITUTING GREATER THAN FIFTY ATOMIC WEIGHT PERCENT OF ANY METAL ATOMS IN THE SURFACE EXPOSED TO THE REACTION GASES, THE RATIO OF THE MOLS OF SAID OXYGEN TO THE MOLS OF SAID IODINE BEING GREATER THAN FOUR.
Claim 2
Independent Claim
135 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 ALIPHATIC OF 0.35 TO 1.75 MOLS OF OXYGEN PER MOL OF SAID ALIPHATIC HYDROCARBON, FROM AT LEAST ABOUT 0.001 TO 0.08 MOL OF IODINE PER MOL OF SAID ALIPHATIC HYDROCARON, THE INITIAL PARTIAL PRESSURE OF SAID ALIPHATIC HYDROCARBON BEING EQUIVALENT TO NO GREATER THAN ABOUT 10 INCHES OF MERCURY AT ONE ATMOSPHERE TOTAL PRESSURE, WITH A CATALYST COMPRISING COPPER PHOSPHATE, WITH THE SAID COPPER PHOSPHATE CONSTITUTING GREATER THAN FIFTY ATOMIC WEIGHT PERCENT OF ANY METAL ATOMS IN THE SURFACE EXPOSED TO THE REACTION GASES, THE RATIO OF THE MOLS OF SAID OXYGEN TO THE MOLS OF SAID IODINE BEING GREATER THAN FOUR.
References Cited (Backward Citations)
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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) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |