US3677973A
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Transalkylation of alklaromatic hydrocarbons in contact with a zeolite catalyst composition
Assignee: Universal Oil Products Co
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Filing: 1970-03-16
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Granted: 1972-07-18
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Expires: 1990-03-16
Abstract
Abstract A CATALYST COMPOSITION WHICH IS PARTICULARLY EFFECTIVE AS A CATALYST WITH RESPECT TO THE TRANSALKYLATION OR DISPROPORTIONATION OF TOLUENE TO FORM BENZENE AND POLYMETHYLBENZENE PRODUCTS. THE CATALYST COMPRISES A ZEOLITE WITH A MORDENITE CRYSTAL STRUCTURE CONTAINING A ALUMINA FIXED IN COMBINATION THEREWITH. THE CATALYST IS CHARACTERIZED BY A METHOD OF PREPARATION.
Inventors
- 👤 Roy T Mitsche
- 👤 Edward Michalko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:04
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2702; C07C5/2708; B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/183; B01J29/00; B01J29/04; B01J29/06; B01J29/18; C01; C01B; C01B33/00; C01B33/20; C01B33/26; C01B33/28; C01B33/2807; C01B33/2861; C01B33/2892; C07C2/00; C07C2/86; C07C2/861; C07C2/868; C07C6/00; C07C6/08; C07C6/12; C07C6/123; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/18; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
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) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |