US2983687A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified magnesium carbonate gel and method for preparation thereof
Assignee: ExxonMobil Oil Corp
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Filing: 1958-12-18
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Granted: 1961-05-09
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Expires: 1978-12-18
Abstract
No abstract record available.
Inventors
- 👤 Myers Herbert
- 👤 Ferdinand P Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:14
CPC Classifications
B; B01; B01J; B01J13/00; B01J13/0052; B01J13/0065
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
45 words
AN AMORPHOUS MODIFIED MAGNESIM CARBONATE GEL HAVING A SURFACE AREA WITHIN THE APPROXIMATE RANGE OF 500 TO 700 SQUARE METERS PER GRAM CHARACTERIZED BY THE FORMULA: AMGCO3.BMG(OH)OCH3 WHERE A AND B ARE INTEGERS, WITH THE RATIO OF A TO B BEING BETWEEN 1 AND 5.
Claim 2
Dependent Claim
45 words
AN AMORPHOUS MODIFIED MAGNESIM CARBONATE GEL HAVING A SURFACE AREA WITHIN THE APPROXIMATE RANGE OF 500 TO 700 SQUARE METERS PER GRAM CHARACTERIZED BY THE FORMULA: AMGCO3.BMG(OH)OCH3 WHERE A AND B ARE INTEGERS, WITH THE RATIO OF A TO B BEING BETWEEN 1 AND 5.
Claim 3
Dependent Claim
68 words
A CYCLIC PROCESS FOR PREPARING AN AMORPHOUS MODIFIED MAGNESIUM CARBONATE GEL CHARACTERIZED BY A HIGH SURFACE AREA WHICH COMPRISES PREPARING A METHANOL SOLUTION OF MAGNESIUM DIMETHYLATE BY REACTION OF MAGNESIUM METAL WITH METHANOL, CONTACTING THE RESULTING SOLUTION WITH AN AMOUNT OF GASEOUS CARBON DIOXIDE SUCH THAT THE MOLAR RATIO OF CARBON DIOXIDE TO MAGNESIUM IS AT LEAST 0.5, ADDING WATER TO AN EXTENT SUCH THAT THE MOLAR RATIO
Claim 4
Dependent Claim
68 words
A CYCLIC PROCESS FOR PREPARING AN AMORPHOUS MODIFIED MAGNESIUM CARBONATE GEL CHARACTERIZED BY A HIGH SURFACE AREA WHICH COMPRISES PREPARING A METHANOL SOLUTION OF MAGNESIUM DIMETHYLATE BY REACTION OF MAGNESIUM METAL WITH METHANOL, CONTACTING THE RESULTING SOLUTION WITH AN AMOUNT OF GASEOUS CARBON DIOXIDE SUCH THAT THE MOLAR RATIO OF CARBON DIOXIDE TO MAGNESIUM IS AT LEAST 0.5, ADDING WATER TO AN EXTENT SUCH THAT THE MOLAR RATIO
References Cited (Backward Citations)
US2491033A
Cited
US2692239A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |