US2966393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of metal values including thorium, hafnium, zirconium, uranium, and molybdenum from aqueous solution
Assignee: United Kingdom Atomic Energy Authority
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Filing: 1956-12-20
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Granted: 1960-12-27
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Expires: 1976-12-20
Abstract
No abstract record available.
Inventors
- 👤 Kember Norman Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:05
CPC Classifications
C; C22; C22B; C22B3/00; C22B3/20; C22B3/22; C22B3/24; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
IN THE RECOVERY FROM AQUEOUS SOLUTION OF A METAL SELECTED FROM THE GROUP CONSISTING OF THORIUM, HAFNIUM, ZIRCONIUM, URANIUM AND MOLYBDENUM, A METHOD COMPRISING BRINGING SAID AQUEOUS SOLUTION, ADJUSTED TO A CONCENTRATION OF AT LEAST N/10 IN RESPECT OF MINERAL ACID, INTO CONTACT WITH PHOSPHORYLATED CELLULOSE TO EFFECT ADSOPTION OF IONS OF THE DISSOLVED METAL THEREON, AND SUBSEQUENTLY TREATING THE METAL-CONTAINING PHOSPHORYLATED CELLULOSE THUS OBTAINED TO EXTRACT THE METAL THEREFROM.
Claim 2
Dependent Claim
70 words
IN THE RECOVERY FROM AQUEOUS SOLUTION OF A METAL SELECTED FROM THE GROUP CONSISTING OF THORIUM, HAFNIUM, ZIRCONIUM, URANIUM AND MOLYBDENUM, A METHOD COMPRISING BRINGING SAID AQUEOUS SOLUTION, ADJUSTED TO A CONCENTRATION OF AT LEAST N/10 IN RESPECT OF MINERAL ACID, INTO CONTACT WITH PHOSPHORYLATED CELLULOSE TO EFFECT ADSOPTION OF IONS OF THE DISSOLVED METAL THEREON, AND SUBSEQUENTLY TREATING THE METAL-CONTAINING PHOSPHORYLATED CELLULOSE THUS OBTAINED TO EXTRACT THE METAL THEREFROM.
References Cited (Backward Citations)
GB654696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-27 | 1964-06-27 | 1964-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-27 | 1968-06-27 | 1968-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-27 | 1972-06-27 | 1972-12-27 | $7700.00 | Window Closed / Lapsed |