US2790701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of recovering uranium
Assignee: Individual
•
Filing: 1945-03-09
•
Granted: 1957-04-30
•
Expires: 1965-03-09
Abstract
No abstract record available.
Inventors
- 👤 Martin D Kamen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:03
CPC Classifications
C; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0217; C22B60/0252; C22B60/0278; C01; C01G; C01G43/00; C01G43/04; C01G43/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
117 words
IN A PROCESS FOR RECLAIMING URANIUM VALUES FROM CALUTRON PARTS WHICH CONTAIN METALS SOLUBLE IN THE WASH SOLUTION AND UPON WHICH PARTS SAID URANIUM IS DEPOSITED, THE STEPS COMPRISING WASHING SAID CALUTRON PARTS WITH AN AQUEOUS SOLVENT FOR THE URANIUM, WHEREBY IMPURITY IRON IN AN AMOUNT AT LEAST EQUIVALENT TO THE URANIUM IS INTRODUCTED INTO THE WASH SOLUTION, TREATING THE WASH SOLUTION WITH AMMONIA TO PRECIPITATE THE URANIUM TOGETHER WITH THE IRON IMPURITY, DISSOLVING THE PRECIPITATE IN HYDROCHLORIC ACID, CONTACTING THE ACID SOLUTION OBTAINED THEREBY WITH ETHER TO EXTRACT THE IRON IMPURITY THEREIN AND AWAY FROM THE URANIUM IN SAID SOLUTION SEPARATING THE HYDROCHLORIC ACID SOLUTION FROM THE EXTRACT, ADN RECOVERING THE URANIUM FROM SAID ACID SOLUTION.
References Cited (Backward Citations)
US2227833A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-29 | 1960-10-29 | 1961-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-29 | 1964-10-29 | 1965-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-29 | 1968-10-29 | 1969-04-30 | $7700.00 | Window Closed / Lapsed |