US3196005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for separating nickel and cobalt from iron
Assignee: Attleboro Refining Co Inc
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Filing: 1962-12-31
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Granted: 1965-07-20
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Expires: 1982-12-31
Abstract
No abstract record available.
Inventors
- 👤 Robert W Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:39
CPC Classifications
C; C22; C22B; C22B23/00; C22B23/04; C22B23/0453; C22B23/0461
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
THE PROCESS OF REMOVING IRON FROM AN AQUEOUS SOLUTION CONTAINING IONS OF THE CLASS CONSISTING OF FERROUS AND MIXTURES OF FERROUS AND FERRIC AND ONS OF THE CLASS CONSISTING OF NICKEL AND COBALT, COMPRISING THE STEPS OF OXIDIZING THE FERROUS IONS TO THE FERRIC STATE AT A PH NOT GREATER THAN 2, INCREASING THE PH OF THE SOLUTION TO BEBWEEN ABOUT 3.9 TO 4.2, DILUTING THE SOLUTION WITH FROM 8 TO 20 VOLUMES OF WATER PER VOLUME OF THE SOLUTION TO FORM AN IRON-CONTAINING PRECIPITATE, SAND SEPARATING THE PRECIPITATE FROM THE SOLUTION.
Claim 2
Dependent Claim
92 words
THE PROCESS OF REMOVING IRON FROM AN AQUEOUS SOLUTION CONTAINING IONS OF THE CLASS CONSISTING OF FERROUS AND MIXTURES OF FERROUS AND FERRIC AND ONS OF THE CLASS CONSISTING OF NICKEL AND COBALT, COMPRISING THE STEPS OF OXIDIZING THE FERROUS IONS TO THE FERRIC STATE AT A PH NOT GREATER THAN 2, INCREASING THE PH OF THE SOLUTION TO BEBWEEN ABOUT 3.9 TO 4.2, DILUTING THE SOLUTION WITH FROM 8 TO 20 VOLUMES OF WATER PER VOLUME OF THE SOLUTION TO FORM AN IRON-CONTAINING PRECIPITATE, SAND SEPARATING THE 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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |