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US3725293A
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Conversion of fuel-metal nitrate solutions to oxides
Assignee: United States Atomic Energy Commission
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Filing: 1972-01-11
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Granted: 1973-04-03
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Expires: 1992-01-11
Abstract
Abstract A SINGLE-STEP METHOD FOR CONVERTINGG AN AQUEOUS NUCLEAR FUEL METAL NITRATE SOLUTION TO A FUEL-METAL OXIDE. A NITRATEREDUCING AGENT SELECTED FROM THE GROUP CONSISTING OF HYDROXYLATED ORGANIC COMPOUNDS AND HYDRAZINE IS ADDED TO THE NITRATE SOLUTION. THE SOLUTION CONTAINING THE ADDITIVE IS HEATED TO AN ELEVATED TEMPERATURE UNDER PRESSURE UNTIL THE FUEL-METAL OXIDE IS PRECIPITATED. THE PRECIPITATED OXIDE THEN IS RECOVERED.
Inventors
- 👤 P Haas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:54
CPC Classifications
C; C01; C01G; C01G56/00; C01G56/004; C01G56/005; C01G43/00; C01G43/01; C01G43/025; C01P; C01P2004/00; C01P2004/30; C01P2004/32; C01P2004/80; C01P2004/82; C01P2006/00; C01P2006/10; C01P2006/12; C01P2006/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |