US3130043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of nickel from laterite ores
Assignee: Northfield Mines Inc
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Filing: 1961-03-17
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Granted: 1964-04-21
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Expires: 1981-03-17
Abstract
No abstract record available.
Inventors
- 👤 Lichty Lyall John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:43
CPC Classifications
C; C22; C22B; C22B23/00; C22B23/04; C22B23/0407; C22B23/0415
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
IN A PROCESS FOR RECOVERING NICKEL FROM LATERITE ORE IN WHICH THE ORE IN A CRUSHED STATE IS LEACHED, THE RESULTING LEACH SOLUTION CONTAINING DISSOLVED NICKEL WHICH IS SEPARATED FROM THE ORE RESIDUE, AND IN WHICH NICKEL IS RECOVERED FROM THE SEPARATED LEACH SOLUTION THE IMPROVEMENT COMPRISING USING ONLY A LEACH SOLUTION CONSISTING ESSENTIALLY OF AN AQUEOUS SODIUM CHLORIDE SOLUTION HAVING A SODIUM CHLORIDE CONTENT IN THE RANGE FROM 10 TO 100 GRAMS PER LITER AND ACIDULATED WITH SULFURIC ACID TO A PH LESS THAN 2.
Claim 2
Dependent Claim
86 words
IN A PROCESS FOR RECOVERING NICKEL FROM LATERITE ORE IN WHICH THE ORE IN A CRUSHED STATE IS LEACHED, THE RESULTING LEACH SOLUTION CONTAINING DISSOLVED NICKEL WHICH IS SEPARATED FROM THE ORE RESIDUE, AND IN WHICH NICKEL IS RECOVERED FROM THE SEPARATED LEACH SOLUTION THE IMPROVEMENT COMPRISING USING ONLY A LEACH SOLUTION CONSISTING ESSENTIALLY OF AN AQUEOUS SODIUM CHLORIDE SOLUTION HAVING A SODIUM CHLORIDE CONTENT IN THE RANGE FROM 10 TO 100 GRAMS PER LITER AND ACIDULATED WITH SULFURIC ACID TO A PH LESS THAN 2.
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) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |