Patent US3146091A successfully refreshed from Google Patents.
US3146091A
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Method and process for the extraction of nickel and cobalt from ores
Assignee: Benguet Consolidated Inc
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Filing: 1961-08-24
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Granted: 1964-08-25
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Expires: 1981-08-24
Abstract
No abstract record available.
Inventors
- 👤 George E Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:14
CPC Classifications
C; C22; C22B; C22B23/00; C22B23/04; C22B23/0407; C22B23/0415; C22B23/043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A METHOD OF EXTRACTING NICKEL AND COBALT COMPRISING HEATING A QUANTITY OF A SERPENTINE ORE CONTAINING A QUANTITY OF IRON TO EXPEL SUBSTANTIALLY ALL FREE AND COMBINED MOISTURE THEREFROM , COMMINUTING THE DRIED ORE TO SUBSTANTIALLY ALL MINUS 100 MESH SCREEN PARTICLES, ROASTING THE COMMINUTED ORE IN AN ATMOSPHERE OF CARBON MONOXIDE AT A TEMPERATURE OF BETWEEN 850 AND 871 DEGREES CENTIGRADE TO REDUCE THE SAME, COOLING THE REDUCED ORE UNDER NON-OXIDIZING CONDITIONS TO FORM A BATCH OF COOLED, REDUCED ORE, ADDING A TWO PERCENT SOLUTION OF SULFURIC ACID TO SAID BATCH OF COOLED, REDUCED ORE WHEREBY THE ACID SELECTIVELY REACTS IN THE PRESENCE OF AIR WITH THE IRON PRESENT TO FORM A FERRIC SULFATE LEACHING SOLUTION, AGITATING THE MIXTURE OF COOLED, REDUCED ORE AND LEACHING SOLUTION TO FORM A PULP MATERIAL AND A PREGNANT SOLUTION CONTAINING NICKEL AND COBALT DISSOLVED THEREIN, AND SEPARATING SAID PULP MATERIAL FROM SAID PREGNANT SOLUTION.
Claim 2
Independent Claim
151 words
A METHOD OF EXTRACTING NICKEL AND COBALT COMPRISING HEATING A QUANTITY OF A SERPENTINE ORE CONTAINING A QUANTITY OF IRON TO EXPEL SUBSTANTIALLY ALL FREE AND COMBINED MOISTURE THEREFROM , COMMINUTING THE DRIED ORE TO SUBSTANTIALLY ALL MINUS 100 MESH SCREEN PARTICLES, ROASTING THE COMMINUTED ORE IN AN ATMOSPHERE OF CARBON MONOXIDE AT A TEMPERATURE OF BETWEEN 850 AND 871 DEGREES CENTIGRADE TO REDUCE THE SAME, COOLING THE REDUCED ORE UNDER NON-OXIDIZING CONDITIONS TO FORM A BATCH OF COOLED, REDUCED ORE, ADDING A TWO PERCENT SOLUTION OF SULFURIC ACID TO SAID BATCH OF COOLED, REDUCED ORE WHEREBY THE ACID SELECTIVELY REACTS IN THE PRESENCE OF AIR WITH THE IRON PRESENT TO FORM A FERRIC SULFATE LEACHING SOLUTION, AGITATING THE MIXTURE OF COOLED, REDUCED ORE AND LEACHING SOLUTION TO FORM A PULP MATERIAL AND A PREGNANT SOLUTION CONTAINING NICKEL AND COBALT DISSOLVED THEREIN, AND SEPARATING SAID PULP MATERIAL FROM SAID PREGNANT 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) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |