US3136825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for disproportionation of isoparaffinic hydrocarbons
Assignee: Sinclair Research Inc
•
Filing: 1960-10-20
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Granted: 1964-06-09
•
Expires: 1980-10-20
Abstract
No abstract record available.
Inventors
- 👤 Patrick W Ryan
- 👤 Ronald S Bartlett
- 👤 Robert A Sanford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:29
CPC Classifications
C; C07; C07C; C07C6/00; C07C6/08; C07C6/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
IN A METHOD OF CONVERTING LOW OCTANE PARAFFINIC FEEDSTOCKS, THE STEP COMPRISING CONTACTING A HYDROCARBON FEEDSTOCK COMSISTING ESSENTAILLY OF ISOPARAFFINIC HYDROCARBONS OF 6-12 CARBON ATOMS AND ISOBUTANE WITH A CATALYTIC AMOUNT OF PHOSPHORIC ACID-BORON TRIFLUORIDE CATALYST IN A REACTION ZONE AT A TEMPERATURE OF ABOUT 30 TO 350*F., AND HAVING A BORON TRIFLUORIDE PARTIAL PRESSURE OF ABOUT 100 TO 5000 P.S.I.G. AND SUFFICIENT TO MAINTAIN THE HYDROCARBON MIXTURE AT LEAST PARTIALLY IN THE LIQUID STATE, THE WEIGHT RATIO OF SAID FEEDSTOCK JTO ISOBUTANE BEING ABOUT 0.1 TO 10:1, TO OBTAIN A HYDROCARBON PRODUCT JOF INCREASED OCTANE NUMBER RATING BOILING IN THE GASOLINE RANGE.
Claim 2
Dependent Claim
103 words
IN A METHOD OF CONVERTING LOW OCTANE PARAFFINIC FEEDSTOCKS, THE STEP COMPRISING CONTACTING A HYDROCARBON FEEDSTOCK COMSISTING ESSENTAILLY OF ISOPARAFFINIC HYDROCARBONS OF 6-12 CARBON ATOMS AND ISOBUTANE WITH A CATALYTIC AMOUNT OF PHOSPHORIC ACID-BORON TRIFLUORIDE CATALYST IN A REACTION ZONE AT A TEMPERATURE OF ABOUT 30 TO 350*F., AND HAVING A BORON TRIFLUORIDE PARTIAL PRESSURE OF ABOUT 100 TO 5000 P.S.I.G. AND SUFFICIENT TO MAINTAIN THE HYDROCARBON MIXTURE AT LEAST PARTIALLY IN THE LIQUID STATE, THE WEIGHT RATIO OF SAID FEEDSTOCK JTO ISOBUTANE BEING ABOUT 0.1 TO 10:1, TO OBTAIN A HYDROCARBON PRODUCT JOF INCREASED OCTANE NUMBER RATING BOILING IN THE GASOLINE RANGE.
References Cited (Backward Citations)
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US2216274A
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US2402051A
Cited
US2405993A
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US2358011A
Cited
US2849509A
Cited
US2947682A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |