US3647916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isoparaffin-olefin alkylation with crystalline zeolite catalysts at low isoparaffin to olefin ratios
Assignee: Mobil Oil AS
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Filing: 1969-10-08
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Granted: 1972-03-07
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Expires: 1989-10-08
Abstract
Abstract A CONTINUOUS PROCESS FOR ALKYLATION OF A BRANCHED CHAIN HYDROCARBON WITH AN OLEFIN IN THE PRESENCE OF A CRYSTALLINE ALUMINOSILICATE ZEOLITE CATALYST EMPLOYING A REACTION MIXTURE IN WHICH THE MOLAR RATIO OF ISOPARAFFIN TO OLEFIN IS EXTREMELY LOW COMPARED TO CONVENTIONAL ALKYLATION, I.E. GENERALLY BELOW 3 TO 1 FOLLOWED BY REGENERATION AND REUSE OF THE CATALYST SO EMPLOYED.
Inventors
- 👤 Philip D Caesar
- 👤 Werner O Haag
- 👤 John J Wise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:46
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/90; C; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/08; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/584
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |