US3205068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the purification of uranium and particularly irradiated uranium
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1962-03-08
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Granted: 1965-09-07
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Expires: 1982-03-08
Abstract
No abstract record available.
Inventors
- 👤 Erler Jean
- 👤 Peray Robert
- 👤 Petit Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:04
CPC Classifications
C; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0213; G; G21; G21C; G21C19/00; G21C19/42; G21C19/44; G21C19/48; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y02W; Y02W30/00; Y02W30/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
PROCESS FOR THE PURIFICATION OF IRRADIATED URANIUM, IN WHICH THE URANIUM TO BE PURIFIED IS MELTED UNDER A THERMODYNAMICALLY STABLE SLAG CONSISTING OF A PLURALITY OF OXIDES FORMING A NEARLY EUTECTIC COMPOSITION WHICH IS COMPATIBLE WITH URANIUM AND WHICH REMAINS LIQUID AT A TEMPERATURE WHICH IS LOWER THAN THE MELTING TEMPERATURE OF URANIUM, THE WHOLE MOLTEN MASS BEING THEN COOLED TO A TEMPERATURE BETWEEN THE MELTING TEMPERATURE OF THE SLAG AND THAT OF URANIUM TO SOLIDIFY THE URANIUM, THE SOLID PURIFIED URANIUM THEN BEING SEPERATED FROM THE LIQUID SLAG WHICH CONTAINS AS IMPURITIES THE FISSION PRODUCTS TO BE ELIMINATED.
Claim 2
Dependent Claim
99 words
PROCESS FOR THE PURIFICATION OF IRRADIATED URANIUM, IN WHICH THE URANIUM TO BE PURIFIED IS MELTED UNDER A THERMODYNAMICALLY STABLE SLAG CONSISTING OF A PLURALITY OF OXIDES FORMING A NEARLY EUTECTIC COMPOSITION WHICH IS COMPATIBLE WITH URANIUM AND WHICH REMAINS LIQUID AT A TEMPERATURE WHICH IS LOWER THAN THE MELTING TEMPERATURE OF URANIUM, THE WHOLE MOLTEN MASS BEING THEN COOLED TO A TEMPERATURE BETWEEN THE MELTING TEMPERATURE OF THE SLAG AND THAT OF URANIUM TO SOLIDIFY THE URANIUM, THE SOLID PURIFIED URANIUM THEN BEING SEPERATED FROM THE LIQUID SLAG WHICH CONTAINS AS IMPURITIES THE FISSION PRODUCTS TO BE ELIMINATED.
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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |