US3193381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the concentration of nickel and cobalt in aqueous solutions
Assignee: Huntington Alloys Corp
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Filing: 1962-03-19
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Granted: 1965-07-06
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Expires: 1982-03-19
Abstract
No abstract record available.
Inventors
- 👤 James H B George
- 👤 Ellery W Stone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:12
CPC Classifications
C; C01; C01G; C01G51/00; C01G51/01; C01G53/00; C01G53/01; C22; C22B; C22B23/00; C22B23/04; C22B23/0453; C22B23/0461; C22B3/00; C22B3/20; C22B3/26; C22B3/38; C22B3/384; C22B3/3844; C22B3/3846; C22B3/386; C22B3/42; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A PROCESS FOR CONCENTRATING NICKEL AND COBALT VALUES FROM A DILUTE AQUEOUS ACIDIC SOLUTION OF NICKEL AND COBALT WHICH COMPRISES ADDING A STRONG AKALI FROM THE GROUP CONSISTING OF SODIUM HYDROXIDE AND POTASSIUM HYDROXIDE TO THE DILUTE AQUEOUS ACIDIC SOLUTION IN AN AMOUNT SUFFICIENT TO PRECIPITATE SUBSTANTIALLY ALL THE NICKEL AND COBALT IN SAID DILUTE AQUEOUS SOLUTION AS HYDROXIDES BUT NOT MORE THAN ABOUT 1.15 EQUIVALENTS OF ALKALI IN EXCESS OF THAT REQUIRED TO NEUTRALIZE FREE ACID IN SOLUTION FOR EACH EQUIVALENT OF NICKEL AND COBALT IN SOLUTION; TREATING THE HYDROXIDE SLURRY SO FORMED WITH A SOLUTION OF BETWEEN ABOUT .5 M AND ABOUT 2 M DI-2-ETHYLHEXYL PHOSPHORIC ACID IN WATERIMMISCIBLE ORGANIC SOLVENT TO FORM A NICKEL- AND COBALTCONTAINING ORGANIC PHASE AND AN AQUEOUS PHASE SUBSTANTIALLY FREE FROM NICKEL AND COBALT; SEPARATING SAID ORGANIC
Claim 2
Dependent Claim
134 words
A PROCESS FOR CONCENTRATING NICKEL AND COBALT VALUES FROM A DILUTE AQUEOUS ACIDIC SOLUTION OF NICKEL AND COBALT WHICH COMPRISES ADDING A STRONG AKALI FROM THE GROUP CONSISTING OF SODIUM HYDROXIDE AND POTASSIUM HYDROXIDE TO THE DILUTE AQUEOUS ACIDIC SOLUTION IN AN AMOUNT SUFFICIENT TO PRECIPITATE SUBSTANTIALLY ALL THE NICKEL AND COBALT IN SAID DILUTE AQUEOUS SOLUTION AS HYDROXIDES BUT NOT MORE THAN ABOUT 1.15 EQUIVALENTS OF ALKALI IN EXCESS OF THAT REQUIRED TO NEUTRALIZE FREE ACID IN SOLUTION FOR EACH EQUIVALENT OF NICKEL AND COBALT IN SOLUTION; TREATING THE HYDROXIDE SLURRY SO FORMED WITH A SOLUTION OF BETWEEN ABOUT .5 M AND ABOUT 2 M DI-2-ETHYLHEXYL PHOSPHORIC ACID IN WATERIMMISCIBLE ORGANIC SOLVENT TO FORM A NICKEL- AND COBALTCONTAINING ORGANIC PHASE AND AN AQUEOUS PHASE SUBSTANTIALLY FREE FROM NICKEL AND COBALT; SEPARATING SAID ORGANIC
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) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |