US2960400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for separating nickel contained in solutions of mixed cobalt and nickel salts
Assignee: Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
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Filing: 1958-05-05
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Granted: 1960-11-15
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Expires: 1978-05-05
Abstract
No abstract record available.
Inventors
- 👤 Reynaud Francis
- 👤 Roth Andre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:34
CPC Classifications
C; C22; C22B; C22B23/00; C22B23/04; C22B23/0476; C22B23/0484; C22B23/0453; C22B23/0461; C22B23/0469; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A PROCESS FOR SEPARATING NICKEL FROM COBALT CONTAINED IN A SOLUTION OF MIXED SALTS OF COBALT AND NICKEL WHICH COMPRISES ADDING TO SAID SOLUTION A SOLID METAL MORE ELECTRONEGATIVE THAN NICKEL AND A SOLID METTALOID COMPOUND CONSISTING ESSENTIALLY OF AT LEAST TWO OF THE MEMBERS FROM THE GROUP CONSISTING OF SULPHUR, SELENIUM, TELLURIUM, ANTIMONY AND ARSENIC, MAINTAINING THE PH OF THE SOLUTION BETWEEN 1-5, THE NICKEL SEPARATING FROM THE SOLUTION AS A SOLID MATERIAL, AND SEPARATING THE SOLIDS CONTAINING THE NICKEL FROM THE SOLUTION CONTAINING SUBSTANTIALLY ONLY COLBALT.
Claim 2
Dependent Claim
88 words
A PROCESS FOR SEPARATING NICKEL FROM COBALT CONTAINED IN A SOLUTION OF MIXED SALTS OF COBALT AND NICKEL WHICH COMPRISES ADDING TO SAID SOLUTION A SOLID METAL MORE ELECTRONEGATIVE THAN NICKEL AND A SOLID METTALOID COMPOUND CONSISTING ESSENTIALLY OF AT LEAST TWO OF THE MEMBERS FROM THE GROUP CONSISTING OF SULPHUR, SELENIUM, TELLURIUM, ANTIMONY AND ARSENIC, MAINTAINING THE PH OF THE SOLUTION BETWEEN 1-5, THE NICKEL SEPARATING FROM THE SOLUTION AS A SOLID MATERIAL, AND SEPARATING THE SOLIDS CONTAINING THE NICKEL FROM THE SOLUTION CONTAINING SUBSTANTIALLY ONLY COLBALT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |