Patent US4418895A successfully refreshed from Google Patents.
Patent US2760939A successfully refreshed from Google Patents.
US2760939A
Expired / Lapsed
US
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Silica-magnesia catalyst having improved regeneration characteristics
Assignee: Standard Oil Co
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Filing: 1950-11-29
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Granted: 1956-08-28
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Expires: 1970-11-29
Abstract
No abstract record available.
Inventors
- 👤 Herder Marvin J Den
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:38
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A PROCESS FOR PREPARING A SILICA-MAGNESIA CATALYST OF IMPROVED REGENERATION STABILITY FOR CONVERTING HYDROCARBON OILS WHICH COMPRISES HEATING A POROUS SILICIA GEL IN CONTACT WITH WATER VAPOR AT A TEMPERATURE BETWEEN ABOUT 600 AND 1600* F., WHEREBY THE PORES OF SAID SILICA GEL ARE STABILIZED AT AN AVERAGE DIAMETER GREATER THAN ABOUT 50 ANGSTROM UNITS, PREPARING A MIXTURE THEREOF WITH MAGNESIA CONTAINING UP TO ABOUT 25 PERCENT BY WEIGHT MGO, DRY BASIS, EFFECTING A REACTION BETWEEN SAID SILICIA AND SAID MAGNESIA WHEREBY THERE IS OBTAINED A HOMOGENEOUS DISTRIBUTION OF CATALYTICALLY ACTIVE MAGNESIURN SILICATE THROUGHOUT THE PORES OF SAID STABILIZED SILICIA GEL, AND DRYING THE RESULTING COMPOSITION.
Claim 2
Dependent Claim
106 words
A PROCESS FOR PREPARING A SILICA-MAGNESIA CATALYST OF IMPROVED REGENERATION STABILITY FOR CONVERTING HYDROCARBON OILS WHICH COMPRISES HEATING A POROUS SILICIA GEL IN CONTACT WITH WATER VAPOR AT A TEMPERATURE BETWEEN ABOUT 600 AND 1600* F., WHEREBY THE PORES OF SAID SILICA GEL ARE STABILIZED AT AN AVERAGE DIAMETER GREATER THAN ABOUT 50 ANGSTROM UNITS, PREPARING A MIXTURE THEREOF WITH MAGNESIA CONTAINING UP TO ABOUT 25 PERCENT BY WEIGHT MGO, DRY BASIS, EFFECTING A REACTION BETWEEN SAID SILICIA AND SAID MAGNESIA WHEREBY THERE IS OBTAINED A HOMOGENEOUS DISTRIBUTION OF CATALYTICALLY ACTIVE MAGNESIURN SILICATE THROUGHOUT THE PORES OF SAID STABILIZED SILICIA GEL, AND DRYING THE RESULTING COMPOSITION.
References Cited (Backward Citations)
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Cited
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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) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |