Patent US3004846A successfully refreshed from Google Patents.
US3004846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of nickel-containing silicate ores
Assignee: Huntington Alloys Corp
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Filing: 1960-08-23
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Granted: 1961-10-17
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Expires: 1980-08-23
Abstract
No abstract record available.
Inventors
- 👤 Queneau Paul Etienne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:47
CPC Classifications
C; C22; C22B; C22B23/00; C22B23/02; C22B23/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A PROCESS FOR RECOVERING NICKEL FROM OXIDE NICKEL ORES WHICH COMPRISES TREATING SAID ORE IN A FINELY-DIVIDED STATE AT ELEVATED TEMPERATURES WITH A MIXTURE OF CONTROLLED, SELECTIVE REDUCING AND SULFUR-CONTAINING GASES TO REDUCE SUBSTANTIALLY ALL OFF THE NICKEL AND A SMALL, CONTROLLED PORTION OF THE IRON CONTAINED IN SAID ORE AND TO SULFIDE AT LEAST SUBSTANTIALLY ALL THE NICKEL, SMELTING SAID REDUCED AND SULFIDED ORE IN A SMELTING FURNACE TO FORM A SULFIDE MATTE FROM THE REDUCED AND SULFIDED MATERIAL IN SAID ORE, AND TREATING SAID MATTE FOR RECOVERY OF THE NICKEL CONTAINED THEREIN.
Claim 2
Dependent Claim
94 words
A PROCESS FOR RECOVERING NICKEL FROM OXIDE NICKEL ORES WHICH COMPRISES TREATING SAID ORE IN A FINELY-DIVIDED STATE AT ELEVATED TEMPERATURES WITH A MIXTURE OF CONTROLLED, SELECTIVE REDUCING AND SULFUR-CONTAINING GASES TO REDUCE SUBSTANTIALLY ALL OFF THE NICKEL AND A SMALL, CONTROLLED PORTION OF THE IRON CONTAINED IN SAID ORE AND TO SULFIDE AT LEAST SUBSTANTIALLY ALL THE NICKEL, SMELTING SAID REDUCED AND SULFIDED ORE IN A SMELTING FURNACE TO FORM A SULFIDE MATTE FROM THE REDUCED AND SULFIDED MATERIAL IN SAID ORE, AND TREATING SAID MATTE FOR RECOVERY OF THE NICKEL CONTAINED THEREIN.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-16 | 1965-04-17 | 1965-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-16 | 1969-04-17 | 1969-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-16 | 1973-04-17 | 1973-10-17 | $7700.00 | Window Closed / Lapsed |