US2948667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the photochemical chlorination of cyclohexane in the liquid phase
Assignee: IFP Energies nouvelles
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Filing: 1957-06-10
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Granted: 1960-08-09
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Expires: 1977-06-10
Abstract
No abstract record available.
Inventors
- 👤 Limido Jean
- 👤 Pauw Francis De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:27
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/08; B01J19/12; B01J19/122; C; C07; C07C; C07C17/00; C07C17/093; C07C17/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A CONTINUOUS PROCESS FOR THE MANUFACTURE OF MONOCHLOROCYCLOHEXANE IN THE LIQUID PHASE, WHICH COMPRISES HOMOGENEOUSLY ADMIXING CYCLOHEXANE WITH NOT MORE THAN ABOUT 0.06 MOLE OF CHLORINE PER MOLE OF CYCLOHEXANE IN ABSENCE OF LIGHT, THEN SUBJECTING THE RESULTANT SOLUTION WHICH CONSISTS ESSENTIALLY OF CHLORINE AND CYCLOHEXANE, TO THE ACTION OF ULTRAVIOLET RAYS WHILE MOVING THE MIXTURE SUCCESSIVELY THROUGH A PLURALITY OF INTERCONNECTED ELONGATED AND HORIZONTALLY DISPOSED REACTION ZONES, REMOVING HYDROCHLORIC ACID LIBERATED AT THE END OF EACH REACTION ZONE FROM THE REACTION MIXTURE AND ADMIXING THE LATTER, AFTER COOLING, WITH NOT MORE THAN ABOUT 0.13 MOLE OF CHLORINE PER MOLE OF INITIAL CYCLOHEXANE IN THE ABSENCE OF LIGHT AS THE MIXTURE PASSES FROM SAID REACTION ZONE TO THE NEXT, WITHDRAWING THE REACTION MIXTURE FROM THE LAST REACTION ZONE AND RECOVERING MONOCHLOROCYCLOHEXANE THEREFROM.
Claim 2
Dependent Claim
132 words
A CONTINUOUS PROCESS FOR THE MANUFACTURE OF MONOCHLOROCYCLOHEXANE IN THE LIQUID PHASE, WHICH COMPRISES HOMOGENEOUSLY ADMIXING CYCLOHEXANE WITH NOT MORE THAN ABOUT 0.06 MOLE OF CHLORINE PER MOLE OF CYCLOHEXANE IN ABSENCE OF LIGHT, THEN SUBJECTING THE RESULTANT SOLUTION WHICH CONSISTS ESSENTIALLY OF CHLORINE AND CYCLOHEXANE, TO THE ACTION OF ULTRAVIOLET RAYS WHILE MOVING THE MIXTURE SUCCESSIVELY THROUGH A PLURALITY OF INTERCONNECTED ELONGATED AND HORIZONTALLY DISPOSED REACTION ZONES, REMOVING HYDROCHLORIC ACID LIBERATED AT THE END OF EACH REACTION ZONE FROM THE REACTION MIXTURE AND ADMIXING THE LATTER, AFTER COOLING, WITH NOT MORE THAN ABOUT 0.13 MOLE OF CHLORINE PER MOLE OF INITIAL CYCLOHEXANE IN THE ABSENCE OF LIGHT AS THE MIXTURE PASSES FROM SAID REACTION ZONE TO THE NEXT, WITHDRAWING THE REACTION MIXTURE FROM THE LAST REACTION ZONE AND RECOVERING MONOCHLOROCYCLOHEXANE THEREFROM.
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) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |