US2951889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isomerization of paraffin hydrocarbons
Assignee: Pure Oil Co
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Filing: 1955-12-16
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Granted: 1960-09-06
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Expires: 1975-12-16
Abstract
No abstract record available.
Inventors
- 👤 Marcellus J Geerts
- 👤 Hillis O Folkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:45
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2702; C07C5/271; C07C5/2718
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A PROCESS FOR THE LIQUID PHASE ISOMERIZATION OF A FEED STOCK CONTAINING AN ISOMERIZABLE, SATURATED PARAFFINIC HYDROCARBON HAVING NOT MORE THAN ABOUT 10 CARBON ATOMS PER MOLECULE, WHICH COMPRISES CONTACTING THE FEED STOCK AT A TEMPERATURE OF ABOUT 0-200*C. WITH A BORON FLUORIDE-HYDROGEN FLUORIDE CATALYST COMPOSITION IN THE PRESENCE OF ABOUT 0.4-15 MOLE PERCENT OF DURENE, BASED ON SAID FEED STOCK, SAID CATALYST CONTAINING 1 TO 25 MOLE PERCENT OF BORON FLUORIDE AND 10 TO 200 MOLE PERCENT OF HYDROGEN FLUORIDE, BASED ON THE HYDROCARBON CHARGE STOCK.
Claim 2
Dependent Claim
87 words
A PROCESS FOR THE LIQUID PHASE ISOMERIZATION OF A FEED STOCK CONTAINING AN ISOMERIZABLE, SATURATED PARAFFINIC HYDROCARBON HAVING NOT MORE THAN ABOUT 10 CARBON ATOMS PER MOLECULE, WHICH COMPRISES CONTACTING THE FEED STOCK AT A TEMPERATURE OF ABOUT 0-200*C. WITH A BORON FLUORIDE-HYDROGEN FLUORIDE CATALYST COMPOSITION IN THE PRESENCE OF ABOUT 0.4-15 MOLE PERCENT OF DURENE, BASED ON SAID FEED STOCK, SAID CATALYST CONTAINING 1 TO 25 MOLE PERCENT OF BORON FLUORIDE AND 10 TO 200 MOLE PERCENT OF HYDROGEN FLUORIDE, BASED ON THE HYDROCARBON CHARGE STOCK.
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) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |