US3766056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon conversion method
Assignee: Union Oil Company of California
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Filing: 1972-07-17
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Granted: 1973-10-16
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Expires: 1992-07-17
Abstract
Abstract A METHOD FOR PREPARING CRYSTALLINE ALUMINOSILICATE ZEOLITE CATALYSTS HAVING A LOW ALKALI METAL CONTENT IS THE ZECLITE AND CONTAINING (1) A POLYVALENT METAL CATION, PREFERABLY AN ION GROUP METAL SND (2) A HYDROGENATION COMPONENT, COMPRISES PRE-CALCINING OR PRE-STEAMING THE POLYVALENT METAL CONTAINING ZEOLITE TO ADDITION OF THE HYDROGENATION COMPONENT. THE INVENTION ALSO INCLUDES THE SUBSEQUENT INTRODUCTION OF ADDITIONAL STABILIZING ELEMENT FOLLOWING THE PRE-CALCINING OR PRE-STEAMING BUT PRIOR TO ADDITION OF THE HYDROGENATION COMPONENT. THE CATALYSTS FIND PARTICULAR UTILITY IN HYDROCRACKNG AND HYDROTREATING PROCESSES.
Inventors
- 👤 D Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:10
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05; B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/186; B01J29/00; B01J29/04; B01J29/06; B01J29/061; C10G49/00; C10G49/02; C10G49/08; Y; Y10; Y10S; Y10S208/00; Y10S208/02
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |