Patent US2843642A successfully refreshed from Google Patents.
US2843642A
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Alkylation process
Assignee: American Oil Co
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Filing: 1956-09-14
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Granted: 1958-07-15
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Expires: 1976-09-14
Abstract
No abstract record available.
Inventors
- 👤 Joe T Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:17
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/60; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1213; C07C2531/00; C07C2531/02; C07C2531/06; C07C2531/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
AN ALKYLATION PROCKESS WHEREIN AN ISOPARAFFIN HAVING FROM 4 TO 8 CARBON ATOMS AND AN OLEFIN HAVING FROM 2 TO 12 CARBON ATOMS ARE CONTACTED, IN A MOLAR RATIO OF ISOPARAFFIN TO OLEFIN BETWEEN ABOUT 2 AND 50, AT A TEMPERATURE BETWEEN ABOUT -20*C. AND 150*C. AND A PRESSURE BETWEENS ABOUT 100 AND 2000 P. S. I., SAID PRESSURE BEING AT LEAST SUFFICIENT TO KEEP A SUBSTANTIAL PORTION OF SAID REACTANTS IN THE LIQUID STATE, FOR A TIME SUFFICIENT TO PERMIT AN APPRECIABLE AMOUNT OF ALKYLATION REACTION TO TAKE PLACE, IN THE PRESENCE OF A CATALYST COMPRISING ESSENTIALLY (I) AN ACIDIC CATION EXCHANGE RESIN AND (II) BORON TRIFLUORIDE, SAID BF3 BEING PRESENT IN AN AMOUNT IN EXCESS OF THAT NEEDED TO SATURATE THE RESIN, A PRODUCT HYDROCARBON MIXTURE IS REMOVED FROM SAID CONTACTING ZONE AND AN ALKYLATE HYDROCARBON PRODUCT IS SEPARATED FROM SAID MIXTURE.
Claim 2
Dependent Claim
144 words
AN ALKYLATION PROCKESS WHEREIN AN ISOPARAFFIN HAVING FROM 4 TO 8 CARBON ATOMS AND AN OLEFIN HAVING FROM 2 TO 12 CARBON ATOMS ARE CONTACTED, IN A MOLAR RATIO OF ISOPARAFFIN TO OLEFIN BETWEEN ABOUT 2 AND 50, AT A TEMPERATURE BETWEEN ABOUT -20*C. AND 150*C. AND A PRESSURE BETWEENS ABOUT 100 AND 2000 P. S. I., SAID PRESSURE BEING AT LEAST SUFFICIENT TO KEEP A SUBSTANTIAL PORTION OF SAID REACTANTS IN THE LIQUID STATE, FOR A TIME SUFFICIENT TO PERMIT AN APPRECIABLE AMOUNT OF ALKYLATION REACTION TO TAKE PLACE, IN THE PRESENCE OF A CATALYST COMPRISING ESSENTIALLY (I) AN ACIDIC CATION EXCHANGE RESIN AND (II) BORON TRIFLUORIDE, SAID BF3 BEING PRESENT IN AN AMOUNT IN EXCESS OF THAT NEEDED TO SATURATE THE RESIN, A PRODUCT HYDROCARBON MIXTURE IS REMOVED FROM SAID CONTACTING ZONE AND AN ALKYLATE HYDROCARBON PRODUCT IS SEPARATED FROM SAID MIXTURE.
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) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |