US3804772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of solutions of mixed uranium and plutonium nitrates
Assignee: United Kingdom Atomic Energy Authority
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Filing: 1972-01-17
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Granted: 1974-04-16
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Expires: 1992-01-17
Abstract
Abstract A MIXED URANIUM AND PLUTONIUM SOLUTION WHEREIN THE NIRATE CONCENTRATION IS SLIGHTLY GREATER THAN, EQUAL TO OR LESS THAN THAT REQUIRED FOR U (VI) AND PU (IV) VALENCIES IS PREPARED BY MIXING A PLUTONIUM (IV) NITRATE SOLUTION CONTAINING NITRIC ACID WITH A DIURANATE, URANIUM TRIOXIDE OR A SOLUTION OF URANIUM TRIOXIDE IN URANYL NITRATE. IT IS THUS POSSIBLE TO PREPARE MIXED SOLUTIONS WHERE THE MOLE RATIO OF PLUTONIUM TO UREANIUM AND THE MOLE RATIO OF NITRATE TO TOTAL METAL CAN BE VARIED ACCORDING TO THE NITRATE CONCENTRATION DESIRABLE FOR SUBSEQUENT OPERATIONS.
Inventors
- 👤 E Lane
- 👤 N Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:11
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/42; G21C3/58; G21C3/62; G21C3/623; C; C01; C01G; C01G56/00; C01G56/003; C01P; C01P2004/00; C01P2004/30; C01P2004/32; C01P2006/00; C01P2006/80; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 0
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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) | 1977-04-15 | 1977-10-15 | 1978-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-15 | 1981-10-15 | 1982-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-15 | 1985-10-15 | 1986-04-16 | $7700.00 | Window Closed / Lapsed |