US3387945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processes for simultaneously purifying and concentrating plutonium solutions
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1965-05-11
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Granted: 1968-06-11
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Expires: 1985-05-11
Abstract
No abstract record available.
Inventors
- 👤 Boudry Jean Claude
- 👤 Chambon Marcel
- 👤 Faugeras Pierre
- 👤 Lheureux Colette
- 👤 Xavier L R Talmont
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:29
CPC Classifications
C; C01; C01G; C01G56/00; C01G56/001; C01G99/00; C01G99/006; C22; C22B; C22B60/00; C22B60/02; C22B60/04; G; G21; G21C; G21C19/00; G21C19/42; G21C19/44; G21C19/46; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y02P; Y02P10/00; Y02P10/20; Y02W; Y02W30/00; Y02W30/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
CONTINUOUS PROCESS FOR SIMULTANEOUSLY PURIFYING AND CONCENTRATING A MOTHER LIQUID OF PLUTONIUM SAID MOTHER LIQUOR CONTAINING A MAXIMUM CONCENTRATION IN SULFATE IONS OF 0.2 M WHICH COMPRISES SUBJECTING IN A FIRST STEP, SAID MOTHER LIQUOR TO A COUNTER-CURRENT EXTRACTION WITH A FLOW OF AN ORGANIC PHASE CONTAINING TRIBUTYLPHOSPHATE, CONTACTING SAID ORGANIC PHASE SUBSEQUENTLY WITH A COUNTER-CURRENT FLOW OF A REDUCTOR SOLUTION OF URANOUS NITRATE FOR REDUCING THE PLUTONIUM CONTAINED IN THE ORGANIC PHASE TO THE 3 VALENCE STATE, STRIPPING THE ORGANIC PHASE WITH A COUNTER-CURRENT FLOW OF A SOLUTION OF HYDRAZINE IN NITRIC ACID, TO OBTAIN A CONCENTRATED AQUEOUS RAFFINATE OF PLUTONIUM, TREATING A PORTION OF SAID FAFFINATE WITH AN OXYDIZING AGENT TO BRING THE PLUTONIUM CONTAINED THEREIN IN A HIGHER VALENCE STATE AND BACK CYCLING SAID PORTION TO THE EXTRACTION FIRST STEP TOGETHER WITH SAID PLUTONIUM MOTHER LIQUOR.
Claim 2
Dependent Claim
139 words
CONTINUOUS PROCESS FOR SIMULTANEOUSLY PURIFYING AND CONCENTRATING A MOTHER LIQUID OF PLUTONIUM SAID MOTHER LIQUOR CONTAINING A MAXIMUM CONCENTRATION IN SULFATE IONS OF 0.2 M WHICH COMPRISES SUBJECTING IN A FIRST STEP, SAID MOTHER LIQUOR TO A COUNTER-CURRENT EXTRACTION WITH A FLOW OF AN ORGANIC PHASE CONTAINING TRIBUTYLPHOSPHATE, CONTACTING SAID ORGANIC PHASE SUBSEQUENTLY WITH A COUNTER-CURRENT FLOW OF A REDUCTOR SOLUTION OF URANOUS NITRATE FOR REDUCING THE PLUTONIUM CONTAINED IN THE ORGANIC PHASE TO THE 3 VALENCE STATE, STRIPPING THE ORGANIC PHASE WITH A COUNTER-CURRENT FLOW OF A SOLUTION OF HYDRAZINE IN NITRIC ACID, TO OBTAIN A CONCENTRATED AQUEOUS RAFFINATE OF PLUTONIUM, TREATING A PORTION OF SAID FAFFINATE WITH AN OXYDIZING AGENT TO BRING THE PLUTONIUM CONTAINED THEREIN IN A HIGHER VALENCE STATE AND BACK CYCLING SAID PORTION TO THE EXTRACTION FIRST STEP TOGETHER WITH SAID PLUTONIUM MOTHER LIQUOR.
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) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |