US2760939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silica-magnesia catalyst having improved regeneration characteristics
Assignee: Standard Oil Co
•
Filing: 1950-11-29
•
Granted: 1956-08-28
•
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 16:16
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)
US2481825A
Cited
US2470411A
Cited
US2544869A
Cited
US2484258A
Cited
US2477695A
Cited
US2605237A
Cited
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 |