US3240590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallurgical system
Assignee: Reynolds Metals Co
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Filing: 1962-08-17
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Granted: 1966-03-15
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Expires: 1982-08-17
Abstract
No abstract record available.
Inventors
- 👤 Schmidt Walther
- 👤 John W Carson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:17
CPC Classifications
C; C22; C22B; C22B21/00; C22B21/0038; C22B21/0053; C22B21/0061
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
133 words
PROCESS FOR THE SEPARATION AND RECOVERY OF ALUMINUM AND MERCURY FROM A MIXTURE OF ALUMINUM CRYSTALS AND MERCURY CONTAINING MORE THAN ABOUT 50% BY WEIGHT OF ALUMINUM WHICH COMPRISES MELTING THE ALUMINUM AND VAPORIZING THE MERCURY BY INTRODUCING SAID ALUMINUMMERCURY MIXTURE INTO A MOLTEN BATH OF A SALT MIXTURE INCLUDING AT LEAST ONE HALIDE OF ALUMINUM, AND AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF A HALIDE OF AN ALKALI METAL AND A HALIDE OF AN ALKALINE EARTH METAL, THE BODY OF SAID BATH BEING MAINTAINED AT AN AVERAGE TEMPERATURE RANGE PROVIDING A SUBSTANTIAL AMOUNT OF LIQUID PHASE AT A TEMPERATURE BELOW THE TEMPERATURE OF CONDENSATION OF MERCURY VAPOR AT THE PREVAILING PRESSURE, SEPARATING THE ALUMINUM FROM THE MOLTEN SALT BATH AND RECOVERING THE ALUMINUM, AND CONDENSING AND RECOVERING THE MERCURY.
Claim 2
Dependent Claim
133 words
PROCESS FOR THE SEPARATION AND RECOVERY OF ALUMINUM AND MERCURY FROM A MIXTURE OF ALUMINUM CRYSTALS AND MERCURY CONTAINING MORE THAN ABOUT 50% BY WEIGHT OF ALUMINUM WHICH COMPRISES MELTING THE ALUMINUM AND VAPORIZING THE MERCURY BY INTRODUCING SAID ALUMINUMMERCURY MIXTURE INTO A MOLTEN BATH OF A SALT MIXTURE INCLUDING AT LEAST ONE HALIDE OF ALUMINUM, AND AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF A HALIDE OF AN ALKALI METAL AND A HALIDE OF AN ALKALINE EARTH METAL, THE BODY OF SAID BATH BEING MAINTAINED AT AN AVERAGE TEMPERATURE RANGE PROVIDING A SUBSTANTIAL AMOUNT OF LIQUID PHASE AT A TEMPERATURE BELOW THE TEMPERATURE OF CONDENSATION OF MERCURY VAPOR AT THE PREVAILING PRESSURE, SEPARATING THE ALUMINUM FROM THE MOLTEN SALT BATH AND RECOVERING THE ALUMINUM, AND CONDENSING AND RECOVERING THE MERCURY.
Claim 3
Dependent Claim
122 words
IN APPARATUS FOR THE SEPARATION AND RECOVERY OF ALUMINUM AND MERCURY MORE THAN ABOUT 50% BY WEIGHT OF ALUMINUM IN A SYSTEM EMPOLYING A MOLTEN SALT BATH: THE IMPROVEMENT, COMPRISING A CHAMBER FOR CONTAINING A MOLTEN SALT BATH AND FOR MELTING ALUMINUM AND VAPORIZING MERCURY, SAID CHAMBER BEING PROVIDED WITH MEANS FOR HEATING THE CONTENTS THEREOF BY IMMERSION INTO THE BODY OF THE SALT BATH, CONVEYOR MEANS FOR FEEDING ALUMINUM-MERCURY MIXTURE TO SAID CHAMBER, MEANS FOR CONDENSING MERCURY VAPOR COMPRISING A CHAMBER IN COMMUNICATION WITH SAID MELTING AND VAPORIZING CHAMBER HAIVNG A HOLLOW JACKET PROVIDING A CONDENSER IN AT LEAST ONE WALL THEREOF, AND MEANS IN COMMUNICATION WITH SAID MELTING AND VAPORIZING CHAMBER COMPRISING A CHAMBER FOR SEPARATING AND RECOVERING MOLTEN ALUMINUM.
Claim 4
Dependent Claim
122 words
IN APPARATUS FOR THE SEPARATION AND RECOVERY OF ALUMINUM AND MERCURY MORE THAN ABOUT 50% BY WEIGHT OF ALUMINUM IN A SYSTEM EMPOLYING A MOLTEN SALT BATH: THE IMPROVEMENT, COMPRISING A CHAMBER FOR CONTAINING A MOLTEN SALT BATH AND FOR MELTING ALUMINUM AND VAPORIZING MERCURY, SAID CHAMBER BEING PROVIDED WITH MEANS FOR HEATING THE CONTENTS THEREOF BY IMMERSION INTO THE BODY OF THE SALT BATH, CONVEYOR MEANS FOR FEEDING ALUMINUM-MERCURY MIXTURE TO SAID CHAMBER, MEANS FOR CONDENSING MERCURY VAPOR COMPRISING A CHAMBER IN COMMUNICATION WITH SAID MELTING AND VAPORIZING CHAMBER HAIVNG A HOLLOW JACKET PROVIDING A CONDENSER IN AT LEAST ONE WALL THEREOF, AND MEANS IN COMMUNICATION WITH SAID MELTING AND VAPORIZING CHAMBER COMPRISING A CHAMBER FOR SEPARATING AND RECOVERING MOLTEN ALUMINUM.
References Cited (Backward Citations)
US2108034A
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US1631544A
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US1628012A
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US1819238A
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US2238792A
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US2348673A
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US2330487A
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US2457552A
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US2795498A
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US2758023A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |