US2901520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Purification of diolefin product from hydrocarbon-iodine dehydrogenation reaction by prompt solvent contact to remove iodine species from hydrocarbon phase
Assignee: Shell Development Co
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Filing: 1956-02-06
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Granted: 1959-08-25
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Expires: 1976-02-06
Abstract
No abstract record available.
Inventors
- 👤 John H Raley
- 👤 Richard D Mullineaux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:29
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/42; C07C5/44; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A PROCESS FOR THE PRODUCTION OF DIOLEFINS FROM MORE SATURATED NON-IODINE-AROMATIZABLE HYDROCARBONS HAVING THE SAME CARBON SKELETONS AS SAID DIOLEFINS WHICH COMPRISES CONTACTING IN A REACTION ZONE A HYDROCARBON FEED OF AT LEAST ONE OF SAID MORE SATURATED HYDROCARBONS AND AT LEAST ABOUT 0.1 MOLE OF IODINE PER MOLE OF HYDROCARBON CHARGED TO SAID REACTION ZONE AT A REACTION TEMPERATURE OF AT LEAST 300* C. TO PRODUCEA MIXTURE COMPRISING A SUBSTANTIAL PROPORTION OF DIOLEFIN, IODINE AND HYDROGEN IODIDE, WITHDRAWING SAID MIXTURE FROM SAID REACTION ZONE AT SAID REACTION TEMPERATURE AND WITHIN 0.1 SECOND OF SAID WITHDRAWL REMOVING SIBSTANTIALLY ALL HYDROGEN IODIDE AND IODINE FROM THE HYDROCARBON PHASE OF SAID MIXTURE.
Claim 2
Dependent Claim
110 words
A PROCESS FOR THE PRODUCTION OF DIOLEFINS FROM MORE SATURATED NON-IODINE-AROMATIZABLE HYDROCARBONS HAVING THE SAME CARBON SKELETONS AS SAID DIOLEFINS WHICH COMPRISES CONTACTING IN A REACTION ZONE A HYDROCARBON FEED OF AT LEAST ONE OF SAID MORE SATURATED HYDROCARBONS AND AT LEAST ABOUT 0.1 MOLE OF IODINE PER MOLE OF HYDROCARBON CHARGED TO SAID REACTION ZONE AT A REACTION TEMPERATURE OF AT LEAST 300* C. TO PRODUCEA MIXTURE COMPRISING A SUBSTANTIAL PROPORTION OF DIOLEFIN, IODINE AND HYDROGEN IODIDE, WITHDRAWING SAID MIXTURE FROM SAID REACTION ZONE AT SAID REACTION TEMPERATURE AND WITHIN 0.1 SECOND OF SAID WITHDRAWL REMOVING SIBSTANTIALLY ALL HYDROGEN IODIDE AND IODINE FROM THE HYDROCARBON PHASE OF SAID MIXTURE.
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) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |