Patent US2859092A successfully refreshed from Google Patents.
US2859092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solvent extraction process for the recovery of metals from phosphoric acid
Assignee: Individual
•
Filing: 1953-02-05
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Granted: 1958-11-04
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Expires: 1973-02-05
Abstract
No abstract record available.
Inventors
- 👤 Richard H Bailes
- 👤 Ray S Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:39
CPC Classifications
C; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0217; C22B60/0252; C22B60/026; B; B01; B01D; B01D11/00; B01D11/04; B01D11/0488; C22B3/00; C22B3/20; C22B3/26; C22B3/38; C22B3/383; C22B3/384; C22B3/3844; C22B3/3846; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
IN A PROCESS FOR RECOVERING A METAL VALUE SELECTED FROM THE GROUP CONSISTING OF URANIUM AND THORIUM, FROM A SOLID MATERIAL, THE STEPS COMPRISING PRODUCING AN ACIDIC PHOSPHATIC SOLUTION OF SAID METAL VALUE CONTAINING SAID METAL VALUE IN AT LEAST A TRIVALENT AND DISPOSITIVELY CHARGED IONIC STATE, CONTACTING SAID SOLUTION WITH A SOLVENT EXTRACTANT PHASE CONTAINING A DILUENT AND A MATERIAL SELECTED FROM THE GROUP CONSISTING OF MONO AND DI ALKYL PHOSPHATES, ALKYL PHOSPHONATES AND ALKYL PHOSPHITES, WHEREBY SAID METAL FORMS A DERIVATIVE COMPOUND WITH SAID MATERIAL AND THEREBY SAID METAL VALUE ENTERS SAID EXTRACTANT PHASE, AND RECOVERING THE METAL VALUE FROM SAID EXTRACTANT.
Claim 2
Dependent Claim
104 words
IN A PROCESS FOR RECOVERING A METAL VALUE SELECTED FROM THE GROUP CONSISTING OF URANIUM AND THORIUM, FROM A SOLID MATERIAL, THE STEPS COMPRISING PRODUCING AN ACIDIC PHOSPHATIC SOLUTION OF SAID METAL VALUE CONTAINING SAID METAL VALUE IN AT LEAST A TRIVALENT AND DISPOSITIVELY CHARGED IONIC STATE, CONTACTING SAID SOLUTION WITH A SOLVENT EXTRACTANT PHASE CONTAINING A DILUENT AND A MATERIAL SELECTED FROM THE GROUP CONSISTING OF MONO AND DI ALKYL PHOSPHATES, ALKYL PHOSPHONATES AND ALKYL PHOSPHITES, WHEREBY SAID METAL FORMS A DERIVATIVE COMPOUND WITH SAID MATERIAL AND THEREBY SAID METAL VALUE ENTERS SAID EXTRACTANT PHASE, AND RECOVERING THE METAL VALUE FROM SAID EXTRACTANT.
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) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |