US3068092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the recovery of aluminum from aluminum-aluminum carbide mixtures
Assignee: Pechiney SA
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Filing: 1960-11-14
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Granted: 1962-12-11
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Expires: 1980-11-14
Abstract
No abstract record available.
Inventors
- 👤 Menegoz Charles Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:40
CPC Classifications
C; C22; C22B; C22B21/00; C22B21/06; C22B21/062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A PROCESS FOR RECOVERING ALUMINUM FROM A MIXTURE COMPRISING ALUMINUM AND ALUMINUM CARBRIDE, COMPRISING THE STEPS OF PREPARING A MOLTEN FLUX CAPABLE OF FORMING A SLURRY OF SAID FLUX AND ALUMINUM CARBIDE IN SAID MIXTURE AND WHEREIN THE FLUX IS AT LEAST ONE OF THE COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL HALIDES AND ALKALINE EARTH METAL HALIDES, PROGRESSIVELY ADDING TO SAID FLUX AN AMOUNT BY WEIGHT OF A MIXTURE OF ALUMINUM AND ALUMINUM CARBIDE SUCH THAT THE ALUMINUM CARBIDE CONTENT OF SAID MIXTURE IS APPROXIMATELY EQUAL TO THE AMOUNT BY WEIGHT OF SAID FLUX BUT WHERE IN THE AMOUNT OF ALUMINUM PLUS ALUMINUM CARBIDE IS GREATER THAN THE AMOUNT BY WEIGHT OF THE FLUX, AND AGITATING THE COMBINATION OF SAID MIXTURE AND SAID FLUX WHEREBY SUBSTANTIALLY ALL THE ALUMINUM IS SEPARATED OUT.
Claim 2
Dependent Claim
135 words
A PROCESS FOR RECOVERING ALUMINUM FROM A MIXTURE COMPRISING ALUMINUM AND ALUMINUM CARBRIDE, COMPRISING THE STEPS OF PREPARING A MOLTEN FLUX CAPABLE OF FORMING A SLURRY OF SAID FLUX AND ALUMINUM CARBIDE IN SAID MIXTURE AND WHEREIN THE FLUX IS AT LEAST ONE OF THE COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL HALIDES AND ALKALINE EARTH METAL HALIDES, PROGRESSIVELY ADDING TO SAID FLUX AN AMOUNT BY WEIGHT OF A MIXTURE OF ALUMINUM AND ALUMINUM CARBIDE SUCH THAT THE ALUMINUM CARBIDE CONTENT OF SAID MIXTURE IS APPROXIMATELY EQUAL TO THE AMOUNT BY WEIGHT OF SAID FLUX BUT WHERE IN THE AMOUNT OF ALUMINUM PLUS ALUMINUM CARBIDE IS GREATER THAN THE AMOUNT BY WEIGHT OF THE FLUX, AND AGITATING THE COMBINATION OF SAID MIXTURE AND SAID FLUX WHEREBY SUBSTANTIALLY ALL THE ALUMINUM IS SEPARATED OUT.
References Cited (Backward Citations)
US2848321A
Cited
US2974032A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |