Patent US2886614A successfully refreshed from Google Patents.
US2886614A
Expired / Lapsed
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Production and recovery of unsaturated hydrocarbons employing adiponitrile containing solvent
Assignee: Universal Oil Products Co
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Filing: 1956-10-17
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Granted: 1959-05-12
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Expires: 1976-10-17
Abstract
No abstract record available.
Inventors
- 👤 Herman S Bloch
- 👤 Kvetinskas Bruno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:46
CPC Classifications
C; C07; C07C; C07C11/00; C07C11/12; C07C7/00; C07C7/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A PROCESS FOR THE PRODUCTION OF A DI-OLEFINIC HYDROCARBON WHICH COMPRISES SUBJECTING A MORE SATURATED HYDROCARBON CONTAINING FROM 4 TO 6 CARBON ATOMS TO DEHYDROGENATING AT REACTION CONDITIONS SUFFICIENT TO CONVERT AT LEAST A PORTION OF SAID MORE SATURATES HYDROCARBON TO A MONO-OLEFIN OF THE SAME NUMBER OF CARBON ATOMS, CONTACTING THE DEHYDROGENATION REACTION PRODUCT WITH A SOLVENT MIXTURE OF ADIPONITRILE, FROM 0 TO ABOUT 20% BY WEIGHT OF WATER AND FROM 5 TO ABOUT 30% BY WEIGHT OF AN OXYGEN-CONTAINING ORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALCOHOLS AND KETONES SOLUBLE IN WATER AND HAVING A BOILING POINT NOT SUBSTANTIALLY GREATER THAN WATER, SEPARATING A RICH SOLVENT FROM A RAFFINATE
Claim 2
Dependent Claim
112 words
A PROCESS FOR THE PRODUCTION OF A DI-OLEFINIC HYDROCARBON WHICH COMPRISES SUBJECTING A MORE SATURATED HYDROCARBON CONTAINING FROM 4 TO 6 CARBON ATOMS TO DEHYDROGENATING AT REACTION CONDITIONS SUFFICIENT TO CONVERT AT LEAST A PORTION OF SAID MORE SATURATES HYDROCARBON TO A MONO-OLEFIN OF THE SAME NUMBER OF CARBON ATOMS, CONTACTING THE DEHYDROGENATION REACTION PRODUCT WITH A SOLVENT MIXTURE OF ADIPONITRILE, FROM 0 TO ABOUT 20% BY WEIGHT OF WATER AND FROM 5 TO ABOUT 30% BY WEIGHT OF AN OXYGEN-CONTAINING ORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALCOHOLS AND KETONES SOLUBLE IN WATER AND HAVING A BOILING POINT NOT SUBSTANTIALLY GREATER THAN WATER, SEPARATING A RICH SOLVENT FROM A RAFFINATE
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) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |