Patent US2757080A successfully refreshed from Google Patents.
US2757080A
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Separation of nickel from solutions containing nickel and cobalt
Assignee: Societe Generale Metallurgique de Hoboken SA
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Filing: 1952-10-20
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Granted: 1956-07-31
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Expires: 1972-10-20
Abstract
No abstract record available.
Inventors
- 👤 Merre Marcel De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:01
CPC Classifications
C; C01; C01G; C01G53/00; C01G53/11; C01G53/80; C22; C22B; C22B23/00; C22B23/04; C22B23/0476; C22B23/0484; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
IN THE REMOVAL OF NICKEL FROM AQUEOUS SOLUTIONS CONTAINING NICKEL AND COBALT IN THE FORM OF THEIR SOLUBLE SALTS, SELECTED FROM THE GROUP CONSISTING OF SULFATES AND CHLORIDES, AND IN A RATIO WITHIN THE RANGE OF FROM ABOUT 0.5 NI:100 CO TO 100 NI:100 CO; THE PROCESS WHICH COMPRISES HEATING SUCH A SOLUTION TO A TEMPERATURE WITHIN THE RANGE OF FROM ABOUT 80* TO 100* C. AND AT A PH OF FROM ABOUT 3 TO 5.5, SAID SOLUTION CONTAINING AN EXCESS OF UNCOMBINED METALLIC IRON AND AN -IDE COMPOUND OF IRON, SELECTED FROM THE CLASS CONSISTING OF IRON MONOSULFIDE, IRON ARSENIDE, IRON ANTIMONIDE, IRON SELENIDE AND IRON TELLURIDE, IN AMOUNT SUFFICIENT SUBSTANTIALLY COMPLETELY TO PRECIPITATE THE NICKEL FROM THE SOLUTION IN THE FORM OF ITS CORRESPONDING -IDE COMPOUND, AND SEPARATING THE RESULTING PRECIPITATE FROM THE SOLUTION.
Claim 2
Dependent Claim
136 words
IN THE REMOVAL OF NICKEL FROM AQUEOUS SOLUTIONS CONTAINING NICKEL AND COBALT IN THE FORM OF THEIR SOLUBLE SALTS, SELECTED FROM THE GROUP CONSISTING OF SULFATES AND CHLORIDES, AND IN A RATIO WITHIN THE RANGE OF FROM ABOUT 0.5 NI:100 CO TO 100 NI:100 CO; THE PROCESS WHICH COMPRISES HEATING SUCH A SOLUTION TO A TEMPERATURE WITHIN THE RANGE OF FROM ABOUT 80* TO 100* C. AND AT A PH OF FROM ABOUT 3 TO 5.5, SAID SOLUTION CONTAINING AN EXCESS OF UNCOMBINED METALLIC IRON AND AN -IDE COMPOUND OF IRON, SELECTED FROM THE CLASS CONSISTING OF IRON MONOSULFIDE, IRON ARSENIDE, IRON ANTIMONIDE, IRON SELENIDE AND IRON TELLURIDE, IN AMOUNT SUFFICIENT SUBSTANTIALLY COMPLETELY TO PRECIPITATE THE NICKEL FROM THE SOLUTION IN THE FORM OF ITS CORRESPONDING -IDE COMPOUND, AND SEPARATING THE RESULTING PRECIPITATE FROM THE SOLUTION.
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) | 1959-07-31 | 1960-01-30 | 1960-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-31 | 1964-01-30 | 1964-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-31 | 1968-01-30 | 1968-07-31 | $7700.00 | Window Closed / Lapsed |