Patent US2624702A successfully refreshed from Google Patents.
US2624702A
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Separation of nickel from cobalt containing solutions
Assignee: Societe Generale Metallurgique de Hoboken SA
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Filing: 1950-06-08
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Granted: 1953-01-06
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Expires: 1970-06-08
Abstract
No abstract record available.
Inventors
- 👤 Merre Marcel De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:46
CPC Classifications
C; C25; C25C; C25C1/00; C25C1/06; C25C1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
IN A PROCESS FOR THE SEPARATION OF NICKEL FROM AQUEOUS SOLUTION OF ACID REACTION CONTAINING COBALT AND NICKEL IN THE FORM OF SOLUBLE SALTS WHOSE ANION DO NOT PRODUCE HARMFUL SECONDARY REACTIONS, THE STEP WHICH COMPRISES HEATING THE SAID SOLUTION TO ABOVE 50* C., ELECTROLYZING THE HEATED SOUTION WITH A MERCURY CATHODE WHILE CONTROLLING THE CATHODIC CURRENT DENSITY TO DEPOSIT NICKEL WITH VERY LITTLE COBALT ON THE MERCURY CATHODE TO FORM AN AMALGAM, AND SEPARATING THE AMALGAM FROM THE SOLUTION CONTAINING THE MAJOR PART OF THE COBALT.
Claim 2
Dependent Claim
87 words
IN A PROCESS FOR THE SEPARATION OF NICKEL FROM AQUEOUS SOLUTION OF ACID REACTION CONTAINING COBALT AND NICKEL IN THE FORM OF SOLUBLE SALTS WHOSE ANION DO NOT PRODUCE HARMFUL SECONDARY REACTIONS, THE STEP WHICH COMPRISES HEATING THE SAID SOLUTION TO ABOVE 50* C., ELECTROLYZING THE HEATED SOUTION WITH A MERCURY CATHODE WHILE CONTROLLING THE CATHODIC CURRENT DENSITY TO DEPOSIT NICKEL WITH VERY LITTLE COBALT ON THE MERCURY CATHODE TO FORM AN AMALGAM, AND SEPARATING THE AMALGAM FROM THE SOLUTION CONTAINING THE MAJOR PART OF THE COBALT.
References Cited (Backward Citations)
US669442A
Cited
US1900996A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-06 | 1956-07-07 | 1957-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-06 | 1960-07-07 | 1961-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-06 | 1964-07-07 | 1965-01-06 | $7700.00 | Window Closed / Lapsed |