US2768871A
Expired / Lapsed
US
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Process using carbonate precipitation
Assignee: Individual
•
Filing: 1945-07-30
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Granted: 1956-10-30
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Expires: 1965-07-30
Abstract
No abstract record available.
Inventors
- 👤 Harrison S Brown
- 👤 Orville F Hill
- 👤 Arthur H Jaffey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:50
CPC Classifications
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
94 words
IN A PROCESS FOR THE RECOVERY OF PLUTONIUM VALUES FROM NEUTRON IRRADIATED URANIUM, THE STEPS WHICH COMPRISE DISSOLVING SAID URANIUM IN HYDROCHLORIC ACID, ADDING CARBONATE IONS THEREBY ADJUSTING THE PH OF THE RESULTING SOLUTION TO A VALUE OF BETWEEN ABOUT 2.5 AND 4.0, REMOVING THE PRECIPITATE THUS FORMED, CONTACTING THE RESULTING SOLUTION WITH A SOURCE OF LA+3 IONS, THEREAFTER ADDING CARBONATE IONS TO ADJUST THE PH OF THE SOLUTION TO A VALUE OF BETWEEN ABOUT 5.5 AND 7.5 AND REMOVING THE PLUTONIUM VALUES FROM SOLUTION BY MEANS OF THE LANTHANUM CARBONATE CARRIER THUS FORMED.
Claim 2
Dependent Claim
94 words
IN A PROCESS FOR THE RECOVERY OF PLUTONIUM VALUES FROM NEUTRON IRRADIATED URANIUM, THE STEPS WHICH COMPRISE DISSOLVING SAID URANIUM IN HYDROCHLORIC ACID, ADDING CARBONATE IONS THEREBY ADJUSTING THE PH OF THE RESULTING SOLUTION TO A VALUE OF BETWEEN ABOUT 2.5 AND 4.0, REMOVING THE PRECIPITATE THUS FORMED, CONTACTING THE RESULTING SOLUTION WITH A SOURCE OF LA+3 IONS, THEREAFTER ADDING CARBONATE IONS TO ADJUST THE PH OF THE SOLUTION TO A VALUE OF BETWEEN ABOUT 5.5 AND 7.5 AND REMOVING THE PLUTONIUM VALUES FROM SOLUTION BY MEANS OF THE LANTHANUM CARBONATE CARRIER THUS FORMED.
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) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |