US2762782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reforming catalyst base
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1952-12-17
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Granted: 1956-09-11
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Expires: 1972-12-17
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles N Kimberlin
- 👤 Elroy M Gladrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:49
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/02; B01J21/04; C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; Y; Y10; Y10S; Y10S502/00; Y10S502/50; Y10S502/503
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
110 words
THE METHOD OF FORMING AN ALUMINA CATALYST SUPPORT POSSESSING HIGH MECHANICAL STRENGTH, SURFACE AREA, PORE VOLUME, AND AVERAGE PORE DIAMETER WHICH COMPRISES REACTING METALLIC ALUMINUM WITH AN ALCOHOL IN THE PRESENCE OF A CATALYST TO FORM THE CORRESPONDING ALUMINUM ALCOHOLATE IN A MEDIUM WHICH IS SUBSTANTIALLY ANHYDROUS, THEREAFTER SATURATING THE SAID MEDIUM WITH CARBON DIOXIDE BY PASSING A STREAM OF CARBON DIOXIDE GAS THERETHROUGH, THEREAFTER ADDING WATER TO EFFECT HYDROLYSIS OF THE ALUMINUM ALCOHOLATE TO FORM A HYDROUS ALUMINA SLURRY, SEPARATING THE SLURRY FROM THE LIQUID MEDIUM, DRYING THE SAID SLURRY AND HEATING THE DRIED ALUMINA FOR AN EXTENDED PERIOD OF TIME AT TEMPERATURES SUFFICIENTLY ELEVATED TO EFFECT ACTIVATION THEREOF.
Claim 2
Independent Claim
110 words
THE METHOD OF FORMING AN ALUMINA CATALYST SUPPORT POSSESSING HIGH MECHANICAL STRENGTH, SURFACE AREA, PORE VOLUME, AND AVERAGE PORE DIAMETER WHICH COMPRISES REACTING METALLIC ALUMINUM WITH AN ALCOHOL IN THE PRESENCE OF A CATALYST TO FORM THE CORRESPONDING ALUMINUM ALCOHOLATE IN A MEDIUM WHICH IS SUBSTANTIALLY ANHYDROUS, THEREAFTER SATURATING THE SAID MEDIUM WITH CARBON DIOXIDE BY PASSING A STREAM OF CARBON DIOXIDE GAS THERETHROUGH, THEREAFTER ADDING WATER TO EFFECT HYDROLYSIS OF THE ALUMINUM ALCOHOLATE TO FORM A HYDROUS ALUMINA SLURRY, SEPARATING THE SLURRY FROM THE LIQUID MEDIUM, DRYING THE SAID SLURRY AND HEATING THE DRIED ALUMINA FOR AN EXTENDED PERIOD OF TIME AT TEMPERATURES SUFFICIENTLY ELEVATED TO EFFECT ACTIVATION THEREOF.
Claim 3
Dependent Claim
28 words
AN ALUMINA CATALYST SUPPORT PREPARED IN ACCORDANCE WITH THE METHOD OF CLAIM 1 WHICH HAS A PORE VOLUME OF FROM ABOUT 0.25 TO 0.55 CUBIC CENTIMETERS PER GRAM.
References Cited (Backward Citations)
US2636865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-11 | 1960-03-12 | 1960-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-11 | 1964-03-12 | 1964-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-11 | 1968-03-12 | 1968-09-11 | $7700.00 | Window Closed / Lapsed |