US3341304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of uranium from uranium dioxide-zirconium dioxide mixtures
Assignee: Individual
•
Filing: 1966-04-08
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Granted: 1967-09-12
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Expires: 1986-04-08
Abstract
No abstract record available.
Inventors
- 👤 Billie J Newby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:50
CPC Classifications
G; G21; G21C; G21C19/00; G21C19/42; G21C19/44; G21C19/46; C; C01; C01G; C01G25/00; C01G25/04; C01G43/00; C01G43/04; C01G43/06; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y02W; Y02W30/00; Y02W30/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A METHOD FOR SEPARATING URANIUM VALUES FROM A MIXTURE OF URANIUM DIOXIDE AND ZIRCONIUM DIOXIDE, COMPRISING: (A) CONTACTING SAID DIOXIDE MIXTURE WITH BOILING CONCENTRATED HYDROFLUORIC ACID OR ANY OF THE FOLLOWING ACIDS OR ACID MIXTURES IN COMBINATION WITH BOILING CONCENTRATED HYDROFLUORIC ACID: OXALIC AND BORIC ACIDS, CHROMIC AND BORIC ACIDS, BORIC ACID, OR ITRIC ACID, IN THE PRESENCE OF COPPER IONS, NICKEL IONS OR A MIXTURE OF COPPER AND NICKEL IONS UNDER AN INERT ATMOSPHERE, WHEREBY THE ZIRCONIUM DIOXIDE IS DISSOLVED BY SAID ACID OR ACID MIXTURE SOLUTION AND THE URANIUM REMAINS AS HYDRATED URANIUM TETRAFLUORIDE, AND (B) SEPARATING THE SOLID FROM THE ACID SOLUTION.
Claim 2
Independent Claim
105 words
A METHOD FOR SEPARATING URANIUM VALUES FROM A MIXTURE OF URANIUM DIOXIDE AND ZIRCONIUM DIOXIDE, COMPRISING: (A) CONTACTING SAID DIOXIDE MIXTURE WITH BOILING CONCENTRATED HYDROFLUORIC ACID OR ANY OF THE FOLLOWING ACIDS OR ACID MIXTURES IN COMBINATION WITH BOILING CONCENTRATED HYDROFLUORIC ACID: OXALIC AND BORIC ACIDS, CHROMIC AND BORIC ACIDS, BORIC ACID, OR ITRIC ACID, IN THE PRESENCE OF COPPER IONS, NICKEL IONS OR A MIXTURE OF COPPER AND NICKEL IONS UNDER AN INERT ATMOSPHERE, WHEREBY THE ZIRCONIUM DIOXIDE IS DISSOLVED BY SAID ACID OR ACID MIXTURE SOLUTION AND THE URANIUM REMAINS AS HYDRATED URANIUM TETRAFLUORIDE, AND (B) SEPARATING THE SOLID FROM THE ACID SOLUTION.
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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |