US2736634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for extracting uranium from its ores
Assignee: Individual
•
Filing: 1949-11-30
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Granted: 1956-02-28
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Expires: 1969-11-30
Abstract
No abstract record available.
Inventors
- 👤 Antoine M Gaudin
- 👤 Jr Reinhardt Schuhmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:04
CPC Classifications
C; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0217; C22B60/0221; C22B60/0226; C22B60/0234; C22B60/0208; C22B60/0252; C22B60/0278
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
70 words
A PROCESS OF EXTRACTING URANIUM FROM A URANIUM BEARING ORE WHICH CONTAINS A SUBSTANTIAL AMOUNT OF METATORBENITE WHICH COMPRISES SUBJECTING SAID ORE TO A MODERATE HEAT TREATMENT AT 110* C.-200* C. TO CONVERT THE METATORBERNITE TO A LOWER HYDRATE WHICH IS MORE READILY SOLUBLE IN AN ACID LEACHING SOLUTION, AND THEN TREATING SAID ORE AT AMBIENT TEMPERATURES WITH AN UNHEATED LEACHING SOLUTION CONTAINING SULFRIC ACID AND INITIALLY ADDED FERRIC SULFATE.
Claim 2
Dependent Claim
70 words
A PROCESS OF EXTRACTING URANIUM FROM A URANIUM BEARING ORE WHICH CONTAINS A SUBSTANTIAL AMOUNT OF METATORBENITE WHICH COMPRISES SUBJECTING SAID ORE TO A MODERATE HEAT TREATMENT AT 110* C.-200* C. TO CONVERT THE METATORBERNITE TO A LOWER HYDRATE WHICH IS MORE READILY SOLUBLE IN AN ACID LEACHING SOLUTION, AND THEN TREATING SAID ORE AT AMBIENT TEMPERATURES WITH AN UNHEATED LEACHING SOLUTION CONTAINING SULFRIC ACID AND INITIALLY ADDED FERRIC SULFATE.
Claim 3
Dependent Claim
95 words
A PROCESS OF RECOVERING URANIUM FROM A URANIUM BEARING ORE WHICH CONTAINS AN EXCESS OF MAGNESITE, WHICH COMPRISES SEPARATING THE MAGNESITE FROM SAID ORE BY FROTH FLOATING, CONVERTING SAID MAGNESITE BY CALCINATION TO MAGNESIA, TREATING THE ORE FRACTION FROM WHICH THE MAGNESITE HAS BEEN SEPARATED AT AMBIENT TEMPERATURES WITH AN UNHEATED LEACHING SOLUTION CONTAINING SULFRIC ACID AND INITIALLY ADDED FERRIC SULFATE, SEPARATING THE LEACH LIQUOR FROM THE LEACH RESIDUE, AND THEN NEUTRALIZING THE LEACH LIQUOR WITH THE CALCINED MAGNESIA DERIVED FROM THE ORE WHEREBY THE URANIUM VALUES IN THE LEACH LIQUOR ARE CAUSED TO PRECIPITATE.
Claim 4
Dependent Claim
95 words
A PROCESS OF RECOVERING URANIUM FROM A URANIUM BEARING ORE WHICH CONTAINS AN EXCESS OF MAGNESITE, WHICH COMPRISES SEPARATING THE MAGNESITE FROM SAID ORE BY FROTH FLOATING, CONVERTING SAID MAGNESITE BY CALCINATION TO MAGNESIA, TREATING THE ORE FRACTION FROM WHICH THE MAGNESITE HAS BEEN SEPARATED AT AMBIENT TEMPERATURES WITH AN UNHEATED LEACHING SOLUTION CONTAINING SULFRIC ACID AND INITIALLY ADDED FERRIC SULFATE, SEPARATING THE LEACH LIQUOR FROM THE LEACH RESIDUE, AND THEN NEUTRALIZING THE LEACH LIQUOR WITH THE CALCINED MAGNESIA DERIVED FROM THE ORE WHEREBY THE URANIUM VALUES IN THE LEACH LIQUOR ARE CAUSED TO PRECIPITATE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-27 | 1959-08-29 | 1960-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-27 | 1963-08-29 | 1964-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-27 | 1967-08-29 | 1968-02-28 | $7700.00 | Window Closed / Lapsed |