Patent US2629754A successfully refreshed from Google Patents.
US2629754A
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Method of isomerizing paraffins with aluminum halides and cisdecalin
Assignee: Phillips Petroleum Co
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Filing: 1948-12-17
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Granted: 1953-02-24
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Expires: 1968-12-17
Abstract
No abstract record available.
Inventors
- 👤 Francis E Condon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:42
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2702; C07C5/271; C07C5/2718; C07C5/2721; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A PROCESS FOR THE ISOMERIZATION OF AN ISOMERIZABLE HYDROCARBON WHICH COMPRISES SUBJECTING DECALIN TO FRACTIONATION TO SEPARATE A CISDECALIN FRACTION AND A TRANS-DECILAN FRACTION THEREFROM, COMBINING THE CIS-DECALIN FRACTION WITH SAID HYDROCARBON AND SUBJECTING THE COMBINED STREAM UNDER ISOMERIZATION CONDITIONS TO THE ACTION OF AN ISOMERIZATION CATALYST, PROCESSING THE RESULTING REACTION MASS TO SEPARATE FROM IT ISOMERIZED HYDROCARBON AS A PRODUCT OF THE PROCESS, CATALYST AND CIS-DECALIN, TRANS-DECALIN FORMED FROM CIS-DECALIN DURING THE ISOMERIZATION, ANY BY-PRODUCTS WHICH ARE SEPARATED FROM THE PROCESS, AND UNREACTED HYDROCARBON CONVERTING THE TRANS-DECALIN TO CIS-DECALIN, AND PASSING THE CIS-DECALIN, THE UNREACTED HYDROCARBON AND THE CATALYST TO THE ISOMERIZATION STEP.
Claim 2
Dependent Claim
104 words
A PROCESS FOR THE ISOMERIZATION OF AN ISOMERIZABLE HYDROCARBON WHICH COMPRISES SUBJECTING DECALIN TO FRACTIONATION TO SEPARATE A CISDECALIN FRACTION AND A TRANS-DECILAN FRACTION THEREFROM, COMBINING THE CIS-DECALIN FRACTION WITH SAID HYDROCARBON AND SUBJECTING THE COMBINED STREAM UNDER ISOMERIZATION CONDITIONS TO THE ACTION OF AN ISOMERIZATION CATALYST, PROCESSING THE RESULTING REACTION MASS TO SEPARATE FROM IT ISOMERIZED HYDROCARBON AS A PRODUCT OF THE PROCESS, CATALYST AND CIS-DECALIN, TRANS-DECALIN FORMED FROM CIS-DECALIN DURING THE ISOMERIZATION, ANY BY-PRODUCTS WHICH ARE SEPARATED FROM THE PROCESS, AND UNREACTED HYDROCARBON CONVERTING THE TRANS-DECALIN TO CIS-DECALIN, AND PASSING THE CIS-DECALIN, THE UNREACTED HYDROCARBON AND THE CATALYST TO THE ISOMERIZATION STEP.
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) | 1956-02-24 | 1956-08-25 | 1957-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-24 | 1960-08-25 | 1961-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-24 | 1964-08-25 | 1965-02-24 | $7700.00 | Window Closed / Lapsed |