US2708210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehydrohalogenation process and catalyst
Assignee: ConocoPhillips Co
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Filing: 1952-07-23
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Granted: 1955-05-10
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Expires: 1972-07-23
Abstract
No abstract record available.
Inventors
- 👤 Roy C Sias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:09
CPC Classifications
B; B01; B01J; B01J21/00; C; C07; C07C; C07C1/00; C07C1/26; C07C1/30; C07C2521/00; C07C2521/06; C07C2521/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
IN A PROCESS OF CATALYTIC DEHYDROHALOGENATION IN WHICH A HALOGENATED HIGH MOLECULAR WEIGHT APARAFFINIC HYDROCARBON IS HEATED AT A MODERATELY ELEVATED TEMPERATURE IN THE PRESENCE OF A SILICEOUS BASE CONTACT MATERIAL TO DRIVE OFF A HYDROGEN HALIDE GAS AND PRODUCE AN OLEFINIC HYDROCARBON, THE IMPROVEMENT WHICH RESIDES IN ACTIVATING THE CONTACT MATERIAL BY A PRETREATMENT WHICH COMPRISES TREATING THE CONTACT MATERIAL WITH A HYDROCARBON OIL UNDER HYDROCARBON CONVERSION CONDITIONS AT A TEMPERATURE OF ABOUT 700 TO 1100* F., AT A SPACE VELOCITY OF ABOUT 0.5 TO 10 LIQUID VOLUMES OF OIL TO EACH VOLUME OF CONTACT MATERIAL PER HOUR FOR A PERIOD OF FROM ABOUT 5 TO 30 MINUTES AND THEN REMOVING CARBONACEOUS DEPOSITS FROM THE CONTACT MATERIAL BY COMBUSTION AT A TEMPERATURE OF ABOUT 1050 TO 1300* F.
Claim 2
Dependent Claim
129 words
IN A PROCESS OF CATALYTIC DEHYDROHALOGENATION IN WHICH A HALOGENATED HIGH MOLECULAR WEIGHT APARAFFINIC HYDROCARBON IS HEATED AT A MODERATELY ELEVATED TEMPERATURE IN THE PRESENCE OF A SILICEOUS BASE CONTACT MATERIAL TO DRIVE OFF A HYDROGEN HALIDE GAS AND PRODUCE AN OLEFINIC HYDROCARBON, THE IMPROVEMENT WHICH RESIDES IN ACTIVATING THE CONTACT MATERIAL BY A PRETREATMENT WHICH COMPRISES TREATING THE CONTACT MATERIAL WITH A HYDROCARBON OIL UNDER HYDROCARBON CONVERSION CONDITIONS AT A TEMPERATURE OF ABOUT 700 TO 1100* F., AT A SPACE VELOCITY OF ABOUT 0.5 TO 10 LIQUID VOLUMES OF OIL TO EACH VOLUME OF CONTACT MATERIAL PER HOUR FOR A PERIOD OF FROM ABOUT 5 TO 30 MINUTES AND THEN REMOVING CARBONACEOUS DEPOSITS FROM THE CONTACT MATERIAL BY COMBUSTION AT A TEMPERATURE OF ABOUT 1050 TO 1300* F.
References Cited (Backward Citations)
US2078247A
Cited
US2467123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-09 | 1958-11-08 | 1959-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-09 | 1962-11-08 | 1963-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-09 | 1966-11-08 | 1967-05-10 | $7700.00 | Window Closed / Lapsed |