Patent US3158662A successfully refreshed from Google Patents.
US3158662A
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US
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Isomerization process
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1960-08-26
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Granted: 1964-11-24
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Expires: 1980-08-26
Abstract
No abstract record available.
Inventors
- 👤 Reichle Alfred Douglas
- 👤 Reitemeier Arthur Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:46
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2702; C07C5/2724; C07C5/2767; C07C5/277; C07C5/2791
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
IN THE ISOMERIZATION OF C5 OR C6 PARAFFINS BY CONTACT WITH A SUPPORTED PLATINUM CATALYST CONTAINING ALUMINUM CHLORIDE AT A TEMPERATURE OF ABOUT 200 TO 400*F., A PRESSURE OF ABOUT 400 TO 1500 P.S.I., IN THE PRESENCE OF ABOUT 300 TO 2000 STANDARD CUBIC FEET OF HYDROGEN PER BARREL OF FEED; THE IMPROVEMENT WHICH COMPRISES MAINTAINING THE SAID TEMPERATURE, PRESSURE AND HYDROGEN CONCENTRATIONS AT CONDITIONS TO MAINTAIN BETWEEN 20 AND 95% OF THE SAID PARAFFINS IN LIQUID PHASE, AND CONTINUOUSLY INCLUDING FROM 5 TO 500 P.P.M. OF ALUMINUM CHLORIDE IN THE FEED.
Claim 2
Dependent Claim
92 words
IN THE ISOMERIZATION OF C5 OR C6 PARAFFINS BY CONTACT WITH A SUPPORTED PLATINUM CATALYST CONTAINING ALUMINUM CHLORIDE AT A TEMPERATURE OF ABOUT 200 TO 400*F., A PRESSURE OF ABOUT 400 TO 1500 P.S.I., IN THE PRESENCE OF ABOUT 300 TO 2000 STANDARD CUBIC FEET OF HYDROGEN PER BARREL OF FEED; THE IMPROVEMENT WHICH COMPRISES MAINTAINING THE SAID TEMPERATURE, PRESSURE AND HYDROGEN CONCENTRATIONS AT CONDITIONS TO MAINTAIN BETWEEN 20 AND 95% OF THE SAID PARAFFINS IN LIQUID PHASE, AND CONTINUOUSLY INCLUDING FROM 5 TO 500 P.P.M. OF ALUMINUM CHLORIDE IN THE FEED.
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) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |