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US3748104A
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Extraction of transplutonium elements from an aqueous solution containing rare earths and fission products
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1969-03-21
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Granted: 1973-07-24
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Expires: 1989-03-21
Abstract
Abstract A METHOD OF TREATMENT OF AQUEOUS SOLUTIONS CONTAINING TRANSPLUTONIUM ELEMENTS, RARE EARTHS AND FISSION PRODUCTS AND MORE PRESCISELY A METHOD OF REMOVAL OF FISSION PRODUCTS FROM THESE SOLUTIONS, CHARACTERIZED IN THAT THE ACID CONCENTRATION OF SAID SOLUTIONS IS ADJUSTED TO NORMALITY WHICH IS HIGHER THAN 1 N AND THAT SAID SOLUTIONS ARE CONTACTED WITH AN ORGANIC PHASE CONSISTING OF AN ORGANOPHOSPHROUS ACID DILUTED IN A SOLVENT WHICH IS IMMISCIBLE WITH WATEER, THE FISSION PRODUCTS BEING EXTRACTED BY SAID ORGANIC PHASE.
Inventors
- 👤 G Koehly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:01
CPC Classifications
G; G21; G21F; G21F9/00; G21F9/04; G21F9/06; G21F9/12
Claims Analysis
Total Claims: 0
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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) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |