US2833616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of uranium from zirconium and niobium by solvent extraction
Assignee: Individual
•
Filing: 1954-03-26
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Granted: 1958-05-06
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Expires: 1974-03-26
Abstract
No abstract record available.
Inventors
- 👤 Eugene E Voiland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:59
CPC Classifications
C; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0217; C22B60/0252; C22B60/026; G; G21; G21C; G21C19/00; G21C19/42; G21C19/44; G21C19/46; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y02W; Y02W30/00; Y02W30/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A PROCESS OF EXTRACTING URANIUM VALUES FROM AN AQUEOUS NITRIC ACID SOLUTION CONTAINING THE URANIUM TOGETHER WITH ZIRCONIUM AND NIOBIUM VALUES COMPRISING ADDING PHOSPHORIC ACID ANIONS TO SAID AQUEOUS SOLUTION IN A QUANTITY TO YIELD A CONCENTRATION OF BETWEEN 0.005 AND 0.2 M, CONTACTING SAID AQUEOUS SOLUTION WITH AN ORGANIC SUBSTANTIALLY WATER-IMMISCIBLE SOLVENT WHEREBY SAID URANYL VALUES ARE TAKEN UP BY AN EXTRACT PHASE WHILE SAID ZIRCONIUM AND NIOBIUM VALUES REMAIN IN AN AQUEOUS RAFFINATE, AND SEPARATING SAID EXTRACT PHASE FROM SAID AQUEOUS RAFFINATE.
Claim 2
Dependent Claim
84 words
A PROCESS OF EXTRACTING URANIUM VALUES FROM AN AQUEOUS NITRIC ACID SOLUTION CONTAINING THE URANIUM TOGETHER WITH ZIRCONIUM AND NIOBIUM VALUES COMPRISING ADDING PHOSPHORIC ACID ANIONS TO SAID AQUEOUS SOLUTION IN A QUANTITY TO YIELD A CONCENTRATION OF BETWEEN 0.005 AND 0.2 M, CONTACTING SAID AQUEOUS SOLUTION WITH AN ORGANIC SUBSTANTIALLY WATER-IMMISCIBLE SOLVENT WHEREBY SAID URANYL VALUES ARE TAKEN UP BY AN EXTRACT PHASE WHILE SAID ZIRCONIUM AND NIOBIUM VALUES REMAIN IN AN AQUEOUS RAFFINATE, AND SEPARATING SAID EXTRACT PHASE FROM SAID AQUEOUS RAFFINATE.
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) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |