Patent US1574751A successfully refreshed from Google Patents.
Patent US3708553A successfully refreshed from Google Patents.
US3708553A
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Alkylation process utilizing a lewis acid halide with fluorosulfuric or trifluoromethanesulfonic acid
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1971-06-25
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Granted: 1973-01-02
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Expires: 1991-06-25
Abstract
Abstract HIGH OCTANE ALKYLATES ARE PREPARED BY CONTACTING PARAFFINIC AND/OR ALKYL SUBSTITUTED AROMATIC HYDROCARBONS WITH OLEFINS AT ALKYLATION CONDITIONS IN THE PRESENCE OF A CATALYST COMPRISING (A) A LEWIS ACID OF THE FORMULA MXN WHERE M IS SELECTED FROM THE GROUP IV-B, V OR VI-B LEMENTS OF THE PERIODIC TABLE, X IS A HALOGEN, AND N VARIES FROM 3-6, AND (B) A STRONG BRONSTED ACID SELECTED FROM THE GROUP COMPRISING FLUOROSULFURIC ACID AND TRIFLUOROMETHANESULFONIC ACID AND MIXTURES THEREOF.
Inventors
- 👤 G Olah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:24
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/26; B01J31/38; B01J27/00; B01J27/06; B01J27/08; B01J31/02; B01J31/0215; B01J31/0225; B01J31/0227; B01J31/34; B01J31/36; C; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; C07C2/64; C07C2/66; C07C2/70; B01J2231/00; B01J2231/40; B01J2231/42; B01J2231/4205; B01J31/16; B01J31/1616; B01J31/165; C07C2527/00; C07C2527/02; C07C2527/03; C07C2527/053; C07C2527/054; C07C2527/06; C07C2527/132; C07C2527/133; C07C2527/135; C07C2527/14; C07C2531/00; C07C2531/02; C07C2531/025
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) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |