US3553102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocracking catalyst and method of preparation
Assignee: Mobil Oil AS
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Filing: 1968-11-08
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Granted: 1971-01-05
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Expires: 1988-11-08
Abstract
Abstract AN IMPROVED HYDROCRACKING CATALYST COMPOSITION PREPARED BY SUBJECTING A CRYSTALLINE ALUMINOSILICATE STARTING MATERIAL, CHARACTERIZED BY A SILICA/ALUMINA MOL RATIO OF AT LEAST 3, TO UP TO ABOUT 35% ALUMINA REMOVAL BY TREATMENT WITH A CHELATING AGENT, FOLLOWED BY CONTACTING THE RESULTANT PARTIALLY DEALUMINIZED CRYSTALLINE ALUMINOSILICATE WITH A NONAQUEOUS SULFUR-CONTAINING SOLUTION OF A PLATINUM OR PALLADIUM GROUP METAL, WITH THE RESULT THAT THE METAL IS PRESENT IN THE CATALYST COMPOSITION, AFTER DRYING, IN THE SULIFIDED FORM.
Inventors
- 👤 Edward J Rosinski
- 👤 Charles J Plank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:25
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G47/16; C10G47/18; B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/186; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/10; B01J29/12; B01J29/126
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |