US3720726A
Expired / Lapsed
US
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Transalkylation of alkylaromatic hydrocarbons in contact with a zeolite catalyst composition
Assignee: Universal Oil Products Co
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Filing: 1972-03-27
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Granted: 1973-03-13
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Expires: 1992-03-27
Abstract
Abstract A PROCESS FOR THE TRANSALKYLATION OF ALKYLAROMATIC HYDROCARBONS. TRANSALKYLATION OF ALKYLAROMATIC HYDROCARBONS, SUCH AS TOLUENE, IS EFFECTED AT TRANSALKYLATION CONDITIONS IN CONTACT WITH A CATALYST COMPRISING FROM ABOUT 60 TO ABOUT 90% OF A ZEOLITE HAVING A MORDENITE CRYSTAL STRUCTURE CONTAINING ALUMINA FIXED IN COMBINATION THEREWITH. THE CATALYST IS CHARACTERIZED BY A METHOD OF PREPARATION.
Inventors
- 👤 R Mitsche
- 👤 E Michalko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:54
CPC Classifications
C; C07; C07C; C07C6/00; C07C6/08; C07C6/12; C07C6/123; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/18; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 0
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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) | 1976-03-12 | 1976-09-11 | 1977-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-12 | 1980-09-11 | 1981-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-12 | 1984-09-11 | 1985-03-13 | $7700.00 | Window Closed / Lapsed |