US2811412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of recovering uranium compounds
Assignee: Individual
•
Filing: 1952-03-31
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Granted: 1957-10-29
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Expires: 1972-03-31
Abstract
No abstract record available.
Inventors
- 👤 Robert H Poirier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:10
CPC Classifications
C; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0217; C22B60/0252; C22B60/0265
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
THE PROCESS OF RECOVERING URANIUM VALUES FROM AN ALKALI METAL CARBONATE SOLUTION, WHICH COMPRISES CONTACTING AN ANION EXCHANGE RESIN IN ITS BASIC FORM WITH SAID SOLUTION WHEREBY SAID URANIUM VALUES ARE ADSORDED THEREON; THEREAFTER CONTACTING SAID URANIUM-CONTAINING RESIN WITH A CARBONATE ELUANT SELECTED FROM THE GROUP CONSISTINGT OF AMMONIUM CARBONATE, AMMONIUM BICARBONATE, AND SODIUM BICARBONATES OF A CONCENTRATION BETWEEN 10 AND 25% WHEREBY THE URANIUM VALUES ARE DESORBED FROM SAID RESIN AND TAKEN UP BY THE ELUANT AND SAID RESIN IS IMMEDIATELY MADE READY FOR RE-USE; AND HEATING THE ELUATE WHEREBY THE CARBONATE IS DECOMPOSED, THE PH VALUE IS LOWERED, AND THE URANIUM VALUES ARE PRECIPITATED.
Claim 2
Dependent Claim
106 words
THE PROCESS OF RECOVERING URANIUM VALUES FROM AN ALKALI METAL CARBONATE SOLUTION, WHICH COMPRISES CONTACTING AN ANION EXCHANGE RESIN IN ITS BASIC FORM WITH SAID SOLUTION WHEREBY SAID URANIUM VALUES ARE ADSORDED THEREON; THEREAFTER CONTACTING SAID URANIUM-CONTAINING RESIN WITH A CARBONATE ELUANT SELECTED FROM THE GROUP CONSISTINGT OF AMMONIUM CARBONATE, AMMONIUM BICARBONATE, AND SODIUM BICARBONATES OF A CONCENTRATION BETWEEN 10 AND 25% WHEREBY THE URANIUM VALUES ARE DESORBED FROM SAID RESIN AND TAKEN UP BY THE ELUANT AND SAID RESIN IS IMMEDIATELY MADE READY FOR RE-USE; AND HEATING THE ELUATE WHEREBY THE CARBONATE IS DECOMPOSED, THE PH VALUE IS LOWERED, AND THE URANIUM VALUES ARE PRECIPITATED.
References Cited (Backward Citations)
GB626882A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-28 | 1961-04-29 | 1961-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-28 | 1965-04-29 | 1965-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-28 | 1969-04-29 | 1969-10-29 | $7700.00 | Window Closed / Lapsed |