US2839357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solvent extraction process for uranium recovery
Assignee: Individual
•
Filing: 1949-02-07
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Granted: 1958-06-17
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Expires: 1969-02-07
Abstract
No abstract record available.
Inventors
- 👤 Herbert M Clark
- 👤 Duffey Dick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:21
CPC Classifications
C; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0217; C22B60/0252; C22B60/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A PROCESS FOR THE SEPARATION OF URANYL NITRATE FROM AN AQUEOUS SOLUTION CONTAINING URANYL NITRATE AND A HETEROPOLY ACID OF MOLYBDENUM, AND WHICH IS AT LEAST 0.5 M IN NITRIC ACID, WHICH COMPRISES NEUTRALIZING AT LEAST PART OF THE NITRIC ACID OF SAID SOLUTION TO PROVIDE AN ACIDITY OF LESS THAN 0.5 M, INCORPORATING A SALTING-OUT AGENT IN SAID SOLUTION, CONTRACTING THE RESULTANG AQUEOUS SOLUTION WITH A LIQUID ORGANIC SOLVENT WHICH IS SUBSTANTIALLY IMMISCIBLE WITH SAID AQUEOUS SOLUTION AND WHICH CONTAINS AT LEAST ONE ATOM CAPABLE OF DONATING AN ELECTRON PAIR TO A COORDINATION BOND, AND SEPARATING AN AQUEOUS RAFFINATE PHASE AND AN ORGANIC SOLVENT EXTRACT PHASE CONTAINING URANYL NITRATE AND ONLY A MINOR AMOUNT OF THE MOLYBDENUM VALUES.
Claim 2
Dependent Claim
119 words
A PROCESS FOR THE SEPARATION OF URANYL NITRATE FROM AN AQUEOUS SOLUTION CONTAINING URANYL NITRATE AND A HETEROPOLY ACID OF MOLYBDENUM, AND WHICH IS AT LEAST 0.5 M IN NITRIC ACID, WHICH COMPRISES NEUTRALIZING AT LEAST PART OF THE NITRIC ACID OF SAID SOLUTION TO PROVIDE AN ACIDITY OF LESS THAN 0.5 M, INCORPORATING A SALTING-OUT AGENT IN SAID SOLUTION, CONTRACTING THE RESULTANG AQUEOUS SOLUTION WITH A LIQUID ORGANIC SOLVENT WHICH IS SUBSTANTIALLY IMMISCIBLE WITH SAID AQUEOUS SOLUTION AND WHICH CONTAINS AT LEAST ONE ATOM CAPABLE OF DONATING AN ELECTRON PAIR TO A COORDINATION BOND, AND SEPARATING AN AQUEOUS RAFFINATE PHASE AND AN ORGANIC SOLVENT EXTRACT PHASE CONTAINING URANYL NITRATE AND ONLY A MINOR AMOUNT OF THE MOLYBDENUM VALUES.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |