US3755483A
Expired / Lapsed
US
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Vapor phase alkylation in presence of crystalline aluminosilicate catalyst
Assignee: ExxonMobil Oil Corp
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Filing: 1972-04-28
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Granted: 1973-08-28
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Expires: 1992-04-28
Abstract
Abstract A PROCESS IS PROVIDED FOR ALKYLATION OF AROMATIC HYDROCARBONS BY CONTACTING SAME WITH AN ALKYLATING AGENT IN A REACTION ZONE MAINTAINED UNDER CONDITIONS SUCH THAT SAID ALKYLATION IS ACCOMPLISHED IN THE VAPOR-PHASE AND IN THE PRESENCE OF A CATALYST COMPRISING A CRYSTALLINE ALUMINOSILICATE ZEOLITE CHARACTERIZED BY A UNIQUE Z-RAY DIFFRACTION PATTERN, SAID CATALYST UNDER SAID CONDITIONS BEING CAPABLE OF AFFORDING A HIGH AND SELECTIVE YIELD OF DESIRED ALKYLAROMATIC PRODUCT.
Inventors
- 👤 G Burress
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:26
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/70; B01J29/7034; B01J20/00; B01J20/30; B01J20/34; B01J20/3408; B01J29/08; B01J29/40; C; C07; C07C; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C07C2/86; C07C2/862; C07C2/864; B01J2229/00; B01J2229/10; B01J2229/26; B01J2229/30; B01J2229/42; C07C2521/00; C07C2521/02; C07C2521/04; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/40; C07C2529/70; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |