US3239573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isomerization process
Assignee: Phillips Petroleum Co
•
Filing: 1962-09-14
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Granted: 1966-03-08
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Expires: 1982-09-14
Abstract
No abstract record available.
Inventors
- 👤 John T Cabbage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:31
CPC Classifications
C; C07; C07C; C07C13/00; C07C13/02; C07C13/08; C07C13/10; C07C5/00; C07C5/22; C07C5/27; C07C5/29; C07C7/00; C07C7/04; C07C2601/00; C07C2601/06; C07C2601/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A PROCESS WHICH COMPRISES PASSING A HYDROCARBON FEED CONTAINING CYCLOHEXANE TO AN ISOMERIZATION ZONE, SAID ISOMERIZATION ZONE CONTAINING AN ISOMERIZATION CATALYST, PASSING HYDROGEN TO SAID ISOMERIZATION ZONE, MAINTAINING THE TEMPERATURE OF SAID ISOMERIZATION ZONE IN THE RANGE OF 650-750*F., MAINTAINING A PRESSURE IS SAID ISOMERIZATION ZONE IN THE RANGE OF 400-500 P.S.I.G., WITHDRAWING AN EFFLUENT CONTAINING METHYLCYCLOPENTANE FROM SAID ISOMERIZATION ZONE, PARTIALLY CONDENSING SAID EFFLUENT WITHDRAWN FROM SAID ISOMERIZATON ZONE, PASSING SAID PARTIALLY CONDENSED EFFLUENT TO A SEPARATION ZONE, WITHDRAWING HYDROGEN FROM SAID SEPARATION ZONE, PASSING A LIQUID HYDROCARBON MIXTURE FROM SAID SEPARATION ZONE TO A STRIPPING ZONE, WITHDRAWING A C5 HYDROCARBON AND LIGHTER FRACTION FROM SAID STRIPPING ZONE, PASSING A HYDRO-
Claim 2
Dependent Claim
112 words
A PROCESS WHICH COMPRISES PASSING A HYDROCARBON FEED CONTAINING CYCLOHEXANE TO AN ISOMERIZATION ZONE, SAID ISOMERIZATION ZONE CONTAINING AN ISOMERIZATION CATALYST, PASSING HYDROGEN TO SAID ISOMERIZATION ZONE, MAINTAINING THE TEMPERATURE OF SAID ISOMERIZATION ZONE IN THE RANGE OF 650-750*F., MAINTAINING A PRESSURE IS SAID ISOMERIZATION ZONE IN THE RANGE OF 400-500 P.S.I.G., WITHDRAWING AN EFFLUENT CONTAINING METHYLCYCLOPENTANE FROM SAID ISOMERIZATION ZONE, PARTIALLY CONDENSING SAID EFFLUENT WITHDRAWN FROM SAID ISOMERIZATON ZONE, PASSING SAID PARTIALLY CONDENSED EFFLUENT TO A SEPARATION ZONE, WITHDRAWING HYDROGEN FROM SAID SEPARATION ZONE, PASSING A LIQUID HYDROCARBON MIXTURE FROM SAID SEPARATION ZONE TO A STRIPPING ZONE, WITHDRAWING A C5 HYDROCARBON AND LIGHTER FRACTION FROM SAID STRIPPING ZONE, PASSING A HYDRO-
References Cited (Backward Citations)
US2766302A
Cited
US2913393A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |