US2904568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of uranium from aqueous solutions
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1955-12-29
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Granted: 1959-09-15
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Expires: 1975-12-29
Abstract
No abstract record available.
Inventors
- 👤 Henry R Ertelt
- 👤 Jr Carroll L Knapp
- 👤 John K Appeldoorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:22
CPC Classifications
C; C01; C01G; C01G43/00; C07; C07D; C07D319/00; C07D319/10; C07D319/14; C07D319/24; C10; C10M; C10M137/00; C10M137/02; C10M137/04; C10M137/10; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0217; C22B60/0252; C22B60/026; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10N; C10N2010/00; C10N2010/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A METHOD FOR RECOVERING URANIUM IONS FROM AQUEOUS, SOLUTION WHICH COMPRISES ADDING TO SAID AQUEOUS SOLUTION WATER-SOLUBLE DIALKYL DITHIOPHOSPHATE CONTAINING IN THE RANGE OF 1 TO 6 CARBON ATOMS IN EACH ALKYL GROUP, AND THEN EXTRACTING THE RESULTANT URANIUM DIALKYL DITHIOPHOSPHATE FROM SAID AQUEOUS SOLUTION WITH A WATERIMMISCIBLE, POLAR SOLVENT.
Claim 2
Independent Claim
50 words
A METHOD FOR RECOVERING URANIUM IONS FROM AQUEOUS, SOLUTION WHICH COMPRISES ADDING TO SAID AQUEOUS SOLUTION WATER-SOLUBLE DIALKYL DITHIOPHOSPHATE CONTAINING IN THE RANGE OF 1 TO 6 CARBON ATOMS IN EACH ALKYL GROUP, AND THEN EXTRACTING THE RESULTANT URANIUM DIALKYL DITHIOPHOSPHATE FROM SAID AQUEOUS SOLUTION WITH A WATERIMMISCIBLE, POLAR SOLVENT.
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) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |