Patent US3976775A successfully refreshed from Google Patents.
US3976775A
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Method for dissolving plutonium dioxide
Assignee: Energy Research and Development Administration ERDA
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Filing: 1975-05-06
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Granted: 1976-08-24
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Expires: 1995-05-06
Abstract
Abstract A method for dissolving plutonium dioxide comprises adding silver ions to a nitric acid-hydrofluoric acid solution to significantly speed up dissolution of difficultly soluble plutonium dioxide.
Inventors
- 👤 Othar K. Tallent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:43
CPC Classifications
C; C22; C22B; C22B3/00; C22B3/04; C22B3/045; B; B01; B01F; B01F21/00; B01F21/02; C22B60/00; C22B60/02; C22B60/04; G; G21; G21C; G21C19/00; G21C19/42; G21C19/44; G21C19/46; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y02P; Y02P10/00; Y02P10/20; Y02W; Y02W30/00; Y02W30/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A method of bringing PuO 2 into aqueous solution comprising adding Ag 2 O 2 to an aqueous dissolving mixture comprising PuO 2 , HNO 3 , and an effective catalytic amount of fluoride.
Claim 2
Independent Claim
34 words
A method of bringing PuO 2 into aqueous solution comprising adding Ag 2 O 2 to an aqueous dissolving mixture comprising PuO 2 , HNO 3 , and an effective catalytic amount of fluoride.
References Cited (Backward Citations)
US3208817A
Cited
US3259473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-24 | 1980-02-23 | 1980-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-24 | 1984-02-23 | 1984-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-24 | 1988-02-23 | 1988-08-24 | $7700.00 | Window Closed / Lapsed |