Patent US2902503A successfully refreshed from Google Patents.
US2902503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of uranium by secondary xanthate complexing
Assignee: Individual
•
Filing: 1950-04-06
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Granted: 1959-09-01
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Expires: 1970-04-06
Abstract
No abstract record available.
Inventors
- 👤 Neville Orear Kenton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:38
CPC Classifications
C; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0217; C22B60/0252; C22B60/026; C22B60/0291
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A SELECTIVE COMPLEXING-ORGANIC EXTRACTION PROCESS FOR THEW SEPARATION AND SELECTIVE RECOVERY OF URANIUM VALUES FROM AN AQUEOUS SOLUTION CONTAINING THE SAME IN THE FORM OF URANYL IONS, TOGETHER WITH AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF THORIUM IONS AND PROTACTINIUM IONS, WHICH COMPRISES CONTACTING SAID SOLUTION WITH AN ORGANIC XANTHAE CHOSEN FROM THE GROUP CONSISTING OF ALKALINE AND ALKALINE EARTH XANTHATES HAVING A XANTHATE GROUP ATTACHED TO A SECONDARY CARBON ATOM, AND EXTRACTING RESULTING URANOXANTHATE COMPLEX WITH AN ORGANIC SOLVENT.
Claim 2
Dependent Claim
83 words
A SELECTIVE COMPLEXING-ORGANIC EXTRACTION PROCESS FOR THEW SEPARATION AND SELECTIVE RECOVERY OF URANIUM VALUES FROM AN AQUEOUS SOLUTION CONTAINING THE SAME IN THE FORM OF URANYL IONS, TOGETHER WITH AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF THORIUM IONS AND PROTACTINIUM IONS, WHICH COMPRISES CONTACTING SAID SOLUTION WITH AN ORGANIC XANTHAE CHOSEN FROM THE GROUP CONSISTING OF ALKALINE AND ALKALINE EARTH XANTHATES HAVING A XANTHATE GROUP ATTACHED TO A SECONDARY CARBON ATOM, AND EXTRACTING RESULTING URANOXANTHATE COMPLEX WITH AN ORGANIC SOLVENT.
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) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |