Patent US2800387A successfully refreshed from Google Patents.
US2800387A
Expired / Lapsed
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Uranium recovery from ores with hydrochloric acid and acetone
Assignee: Individual
•
Filing: 1956-01-24
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Granted: 1957-07-23
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Expires: 1976-01-24
Abstract
No abstract record available.
Inventors
- 👤 Robert B Kimball
- 👤 Robert A Ewing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:24
CPC Classifications
C; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0217; C22B60/0221; C22B60/0247; C01; C01G; C01G13/00; C01G13/003; C01G43/00; C01G43/04; C01G43/08; C22B60/0208; C22B60/0226; C22B60/023; C22B60/0252; C22B60/026; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A PROCESS OF RECOVERING URANIUM VALUES FROM URAMIUM-AND CALCIUM CARBONATE-CONTAINING ORES BY SOLVENT EXTRACTION, COMPRISING DISINTEGRATING THE ORE; ADDING TO THE ORE AN AQUEOUS ACID MEDIUM CONTAINING FREE HYDROCHLORIC ACID UNTIL FROM 0.4 TO 0.6 PERCENT OF THE CALCIUM CARBONATE HAS BEEN NEUTRALIZED WHEREBY AN AQUEOUS SLURRY IS OBTAINED; DEGESTING SAID SLURRY;ADJUSTING THE WATER CONTENT OF SAID SLURRY TO A PREDETERMINED VALUE; CONTACING THE SLURRY WITH ACETONE WHEREBY AN ACETONE SLURRY IS OBTAINED, THE URANIUM VALUES ARE TAKEN UP BY AN EXTRACT PHASE AND A RESIDUE SETTLES IN SAID EXTRACT PHASE, SAID PREDETERMINED VALUE BEING OF SUCH A MAGNITUDE THAT THEAND WATER CONTENT OF THE ACETONE SLURRY LIES BETWEEN 50 AND 150 GRAMS OF WATER PER LITER OF THE ACETONE SLURRY; AND SEPARATING THE EXTRACT PHASE FROM THE RESIDUE.
Claim 2
Dependent Claim
129 words
A PROCESS OF RECOVERING URANIUM VALUES FROM URAMIUM-AND CALCIUM CARBONATE-CONTAINING ORES BY SOLVENT EXTRACTION, COMPRISING DISINTEGRATING THE ORE; ADDING TO THE ORE AN AQUEOUS ACID MEDIUM CONTAINING FREE HYDROCHLORIC ACID UNTIL FROM 0.4 TO 0.6 PERCENT OF THE CALCIUM CARBONATE HAS BEEN NEUTRALIZED WHEREBY AN AQUEOUS SLURRY IS OBTAINED; DEGESTING SAID SLURRY;ADJUSTING THE WATER CONTENT OF SAID SLURRY TO A PREDETERMINED VALUE; CONTACING THE SLURRY WITH ACETONE WHEREBY AN ACETONE SLURRY IS OBTAINED, THE URANIUM VALUES ARE TAKEN UP BY AN EXTRACT PHASE AND A RESIDUE SETTLES IN SAID EXTRACT PHASE, SAID PREDETERMINED VALUE BEING OF SUCH A MAGNITUDE THAT THEAND WATER CONTENT OF THE ACETONE SLURRY LIES BETWEEN 50 AND 150 GRAMS OF WATER PER LITER OF THE ACETONE SLURRY; AND SEPARATING THE EXTRACT PHASE FROM THE RESIDUE.
References Cited (Backward Citations)
US1165693A
Cited
US2227833A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-22 | 1961-01-21 | 1961-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-22 | 1965-01-21 | 1965-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-22 | 1969-01-21 | 1969-07-23 | $7700.00 | Window Closed / Lapsed |