US3150195A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing cyclohexane
Assignee: Phillips Petroleum Co
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Filing: 1960-08-01
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Granted: 1964-09-22
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Expires: 1980-08-01
Abstract
No abstract record available.
Inventors
- 👤 Robert A Findlay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:16
CPC Classifications
C; C07; C07C; C07C13/00; C07C13/02; C07C13/16; C07C13/18; C07C5/00; C07C5/22; C07C5/27; C07C5/2767; C07C5/277; C07C5/2778; C07C5/2786; C07C5/2789; C07C5/29; C07C5/32; C07C5/373; C07C2601/00; C07C2601/06; C07C2601/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A PROCESS FOR PRODUCING CYCLOHEXANE COMPRISING CONTACTING N-HEXANE AND METHYLCYCLOPENTANE IN AN ISOMERIZATION ZONE WITH AN ALUMINUM CHLORIDE-HYDROCARBON COMPLEX CATALYST, PROMOTED WITH CHL UNDER ISOMERIZING CONDITIONS SO AS TO PRODUCE ISOHEXANES AND CYCLOHEXANE; SEPARATING AN EFFLUENT FROM SAID ISOMERIZATION ZONE INTO A CYCLOHEXANE FRACTION AND AN ISOHESANE FRACTION; CONTACTING SAID ISOHEXANE FRACTION IN A DEHYDROCYCLIZATION ZONE WITH A CATALYST CONSISTING ESSENTIALLY OF PLATINUM DISTENDED ON A POROUS INERT SUPPORT AT A TEMPERATURE IN THE RANGE OF ABOUT 400 TO 1025*F. AND AT A PRESSURE BELOW ABOUT 50 P.S.I.G. TO PRODUCE METHYLCYCLOPENTANE; PASSING RESULTING METHYLCYCLOPENTANE FROM SAID DEHYDROCYCLIZATION ZONE TO SAID ISOMERIZING ZONE; AND RECOVERING SAID CYCLOHEXANE AS A PRODUCT OF THE PROCESS.
Claim 2
Dependent Claim
112 words
A PROCESS FOR PRODUCING CYCLOHEXANE COMPRISING CONTACTING N-HEXANE AND METHYLCYCLOPENTANE IN AN ISOMERIZATION ZONE WITH AN ALUMINUM CHLORIDE-HYDROCARBON COMPLEX CATALYST, PROMOTED WITH CHL UNDER ISOMERIZING CONDITIONS SO AS TO PRODUCE ISOHEXANES AND CYCLOHEXANE; SEPARATING AN EFFLUENT FROM SAID ISOMERIZATION ZONE INTO A CYCLOHEXANE FRACTION AND AN ISOHESANE FRACTION; CONTACTING SAID ISOHEXANE FRACTION IN A DEHYDROCYCLIZATION ZONE WITH A CATALYST CONSISTING ESSENTIALLY OF PLATINUM DISTENDED ON A POROUS INERT SUPPORT AT A TEMPERATURE IN THE RANGE OF ABOUT 400 TO 1025*F. AND AT A PRESSURE BELOW ABOUT 50 P.S.I.G. TO PRODUCE METHYLCYCLOPENTANE; PASSING RESULTING METHYLCYCLOPENTANE FROM SAID DEHYDROCYCLIZATION ZONE TO SAID ISOMERIZING ZONE; AND RECOVERING SAID CYCLOHEXANE AS A PRODUCT OF THE PROCESS.
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) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |