US2926135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for decolorizing a hydrocarbon oil using an alumina adsorbent
Assignee: Shell Development Co
•
Filing: 1957-05-23
•
Granted: 1960-02-23
•
Expires: 1977-05-23
Abstract
No abstract record available.
Inventors
- 👤 Engel Willem Frederik
- 👤 Krijger Pieter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:51
CPC Classifications
C; C10; C10G; C10G25/00; C10G25/003; B; B01; B01J; B01J20/00; B01J20/02; B01J20/06; B01J20/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A PROCESS OF DECOLORIZING A HYDROCARBON OIL COMPRISING CONTACTING SAID OIL WITH PARTICLES OF AN ADSORBENT PREPARED BY ADDING TO AN UNCALCINED, NON-ACTIVATED ALUMINA CONTAINING WATER OF HYDRATION AND CONSISTING ESSENTIALLY OF PARTICLES OF FROM 0.25 TO 5MM., AN AQUEOUS SOLUTION OF AN ALUMINUM SALT IN AN AMOUNT SUFFICIENT TO SUBSTANTIALLY FILL THE PORES OF THE ALUMINA PARTICLES WITH ALUMINUM SALT WITHOUT CAUSING SAID PARTICLES TO REMAIN AGGLOMERATED ON AGITATION, AND HEATING THE PARTICLES TO A TEMPERATURE ABOVE 200* C.
Claim 2
Dependent Claim
80 words
A PROCESS OF DECOLORIZING A HYDROCARBON OIL COMPRISING CONTACTING SAID OIL WITH PARTICLES OF AN ADSORBENT PREPARED BY ADDING TO AN UNCALCINED, NON-ACTIVATED ALUMINA CONTAINING WATER OF HYDRATION AND CONSISTING ESSENTIALLY OF PARTICLES OF FROM 0.25 TO 5MM., AN AQUEOUS SOLUTION OF AN ALUMINUM SALT IN AN AMOUNT SUFFICIENT TO SUBSTANTIALLY FILL THE PORES OF THE ALUMINA PARTICLES WITH ALUMINUM SALT WITHOUT CAUSING SAID PARTICLES TO REMAIN AGGLOMERATED ON AGITATION, AND HEATING THE PARTICLES TO A TEMPERATURE ABOVE 200* C.
References Cited (Backward Citations)
GB445727A
Cited
US2390917A
Cited
US2316954A
Cited
US2277512A
Cited
US2662860A
Cited
US2892799A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-22 | 1963-08-24 | 1964-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-22 | 1967-08-24 | 1968-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-22 | 1971-08-24 | 1972-02-23 | $7700.00 | Window Closed / Lapsed |