Patent US2981593A successfully refreshed from Google Patents.
US2981593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for retaining and extracting uranium contained in uraniferous solutions
Assignee: Potasse et Engrais Chimiques SA
•
Filing: 1958-06-12
•
Granted: 1961-04-25
•
Expires: 1978-06-12
Abstract
No abstract record available.
Inventors
- 👤 Pagny Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:35
CPC Classifications
C; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0217; C22B60/0252; C22B60/0265; B; B01; B01D; B01D15/00; B01J; B01J20/00; B01J20/02; B01J20/04; B01J20/048; C01; C01G; C01G43/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A PROCESS FOR AN INDUSTRIAL AND SUBSTANTIALLY COMPLETE RECOVERY OF URANIUM PRESENT IN INDUSTRIAL URANIFEROUS EFFLUENTS IN AN IONIZED STATE, SAID EFFLUENTS HAVING A PH VALUE AT LEAST EQUAL TO 3, SAID PROCESS COMPRISING HEATING SAID EFFLUENTS TO A TEMPERATURE OF SUBSTANTIALLY 60*C., PUTTING SAID WARM EFFLUENTS IN CONTACT WITH AT LEAST ONE PHOSPHATE IN A DIVIDED STATE AND SELECTED FROM THE GROUP CONSISTING OF TRIBASIC CALCIUM AND BARIUM DOUBLE PHOSPHATE, AND TRIBASIC CALCIUM, ZINC AND BARIUM TRIPLE PHOSPHATE, THEREBY OBTAINING BY AN ADSORPTION PHENOMENON A URANIUM AND ALKALINE EARTH PHOSPHATE, AND THEREAFTER SEPARATING SAID PHOSPHATE.
Claim 2
Dependent Claim
96 words
A PROCESS FOR AN INDUSTRIAL AND SUBSTANTIALLY COMPLETE RECOVERY OF URANIUM PRESENT IN INDUSTRIAL URANIFEROUS EFFLUENTS IN AN IONIZED STATE, SAID EFFLUENTS HAVING A PH VALUE AT LEAST EQUAL TO 3, SAID PROCESS COMPRISING HEATING SAID EFFLUENTS TO A TEMPERATURE OF SUBSTANTIALLY 60*C., PUTTING SAID WARM EFFLUENTS IN CONTACT WITH AT LEAST ONE PHOSPHATE IN A DIVIDED STATE AND SELECTED FROM THE GROUP CONSISTING OF TRIBASIC CALCIUM AND BARIUM DOUBLE PHOSPHATE, AND TRIBASIC CALCIUM, ZINC AND BARIUM TRIPLE PHOSPHATE, THEREBY OBTAINING BY AN ADSORPTION PHENOMENON A URANIUM AND ALKALINE EARTH PHOSPHATE, AND THEREAFTER SEPARATING SAID PHOSPHATE.
References Cited (Backward Citations)
US2885258A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |