Patent US2958573A successfully refreshed from Google Patents.
US2958573A
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US
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Purification of uranium concentrates by liquid extraction
Assignee: Union Carbide Corp
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Filing: 1956-09-25
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Granted: 1960-11-01
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Expires: 1976-09-25
Abstract
No abstract record available.
Inventors
- 👤 Robert A Gustison
- 👤 Frank W Hurd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:28
CPC Classifications
C; C01; C01G; C01G43/00; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0217; C22B60/0221; C22B60/0226; C22B60/023; C22B60/0252; C22B60/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A METHOD FOR SEPARATING URANIUM VALUES SUBSTANTIALLY FREE FROM CONTAMINATION BY OTHER METAL COMPOUNDS FROM A URANIUM ORE CONCENTRATE CONTAINING AT LEAST ABOUT 70 PERCENT URANIUM VALUES EXPRESSED AS U3O8 COMPRISING PREPARING FROM SAID ORE CONCENTRATE AN AQUEOUS SOLUTION HAVING A PH OF FROM 0.1 TO 3.0, THE MAJOR PORTION OF THE URANIUM VALUES IN SAID SOLUTION BEING DISSOLVED URANYL OXIDE, EXTRACTING A MAJOR PORTION OF SAID URANIUM VALUES FROM SAID AQUEOUS SOLUTION WITH A SOLUTION OF AT LEAST ONE DIALKYL PHOSPHATE HAVING A CHAIN LENGTH OF FROM ABOUT 6 TO 12 CARBON ATOMS AND DISSOLVED IN A WATER-INSOLUBLE ORAGNIC DILUENT TO EFFECT THE SUBSTNATIALLY COMPLETE SATURATION OF SAID URANIUMEXTRACTING SOLUTION IWTH URANIUM VALUES, AND SEPARATING SAID SUBSTANTIALLY COMPLETELY SATURATED URANIUM-EXTRACTING SOLUTION FROM THE RESULTING AQUEOUS SOLUTION.
Claim 2
Independent Claim
127 words
A METHOD FOR SEPARATING URANIUM VALUES SUBSTANTIALLY FREE FROM CONTAMINATION BY OTHER METAL COMPOUNDS FROM A URANIUM ORE CONCENTRATE CONTAINING AT LEAST ABOUT 70 PERCENT URANIUM VALUES EXPRESSED AS U3O8 COMPRISING PREPARING FROM SAID ORE CONCENTRATE AN AQUEOUS SOLUTION HAVING A PH OF FROM 0.1 TO 3.0, THE MAJOR PORTION OF THE URANIUM VALUES IN SAID SOLUTION BEING DISSOLVED URANYL OXIDE, EXTRACTING A MAJOR PORTION OF SAID URANIUM VALUES FROM SAID AQUEOUS SOLUTION WITH A SOLUTION OF AT LEAST ONE DIALKYL PHOSPHATE HAVING A CHAIN LENGTH OF FROM ABOUT 6 TO 12 CARBON ATOMS AND DISSOLVED IN A WATER-INSOLUBLE ORAGNIC DILUENT TO EFFECT THE SUBSTNATIALLY COMPLETE SATURATION OF SAID URANIUMEXTRACTING SOLUTION IWTH URANIUM VALUES, AND SEPARATING SAID SUBSTANTIALLY COMPLETELY SATURATED URANIUM-EXTRACTING SOLUTION FROM THE RESULTING AQUEOUS SOLUTION.
References Cited (Backward Citations)
US2769686A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |