US2990240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for segregating uranium from plutonium and fission-product contamination
Assignee: Individual
•
Filing: 1952-08-11
•
Granted: 1961-06-27
•
Expires: 1972-08-11
Abstract
No abstract record available.
Inventors
- 👤 Charles V Ellison
- 👤 Thomas C Runion
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:51
CPC Classifications
C; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0217; C22B60/0252; C22B60/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A NEW AND IMPROVED PROCESS FOR SEGREGATING AND SEPARATELY RECOVERING URANIUM VALUES, FROM AN INITIAL AQUEOUS SOLUTION CONTAINING THE SAME TOGETHER WITH PLUTONIUM AND FISSION PRODUCT VALUES, WHICH COMPRISES INTIMATELY CONTACTING SAID INITIAL SOLUTION, WHILE MAINTAINING A SUBSTANTIAL CONCENTRATION OF NITRIC ACID IN THE SOLUTION, WITH AN ORGANIC EXTRACTANT COMPRISING A MINOR VOLUMETRIC PROPORTION OF A SUBSTANTIALLY WATER-IMMISCIBLE LIQUID TRI-ALKYL PHOSPHATE, DISSOLVED IN A MAJOR VOLUMETRIC PROPORTION OF A SUBSTANTIALLY WATER-IMMISCIBLE, LIQUID, NON-POLAR, SATURATED ORGANIC SOLVENT, AND CONTROLLING THE RELATIVE AMOUNTS OF TRI-ALKYL PHOSPHATE AND URANIUM
Claim 2
Dependent Claim
86 words
A NEW AND IMPROVED PROCESS FOR SEGREGATING AND SEPARATELY RECOVERING URANIUM VALUES, FROM AN INITIAL AQUEOUS SOLUTION CONTAINING THE SAME TOGETHER WITH PLUTONIUM AND FISSION PRODUCT VALUES, WHICH COMPRISES INTIMATELY CONTACTING SAID INITIAL SOLUTION, WHILE MAINTAINING A SUBSTANTIAL CONCENTRATION OF NITRIC ACID IN THE SOLUTION, WITH AN ORGANIC EXTRACTANT COMPRISING A MINOR VOLUMETRIC PROPORTION OF A SUBSTANTIALLY WATER-IMMISCIBLE LIQUID TRI-ALKYL PHOSPHATE, DISSOLVED IN A MAJOR VOLUMETRIC PROPORTION OF A SUBSTANTIALLY WATER-IMMISCIBLE, LIQUID, NON-POLAR, SATURATED ORGANIC SOLVENT, AND CONTROLLING THE RELATIVE AMOUNTS OF TRI-ALKYL PHOSPHATE AND URANIUM
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |