US3243282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of aluminum from gaseous aluminum monohalide
Assignee: Alcan Research and Development Ltd
•
Filing: 1963-04-24
•
Granted: 1966-03-29
•
Expires: 1983-04-24
Abstract
No abstract record available.
Inventors
- 👤 Mcgeer James Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:47
CPC Classifications
C; C01; C01F; C01F7/00; C01F7/48; C22; C22B; C22B21/00; C22B21/0038; C22B21/0046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A METHOD OF PRODUCING MOLTEN ELEMENTAL ALUMINUM WHICH COMPRISES CONTACTING AN ALUMINUM ALLOY WITH A GASEOUS ALUMINUM TRIHALIDE AT AN ELEVATED TEMPERATURE ABOVE ABOUT 1000*C. TO EFFECT REACTION BETWEEN THE ALUMINUM IN SAID ALLOY AND THE GASEOUS ALUMINUM TRIHALIDE TO FORM A GASEOUS ALUMINUM MONOHALIDE, WITHDRAWING THE RESULTING PRODUCED GASEOUS ALUMINUM MONOHALIDE, AND INTRODUCING SAID GASEOUS ALUMINUM MONOHALIDE INTO A DECOMPOSING ZONE, MAINTAINING WITHIN SAID DECOMPOSING ZONE A FLUIDIZED MASS OF INERT PARTICLE-FORM MATERIAL AT A TEMPERATURE BELOW ABOUT 1000*C. EFFECTIVE TO COOL THE GASEOUS ALUMINUM MONOHALIDE INTRODUCED INTO SAID DECOMPOSING ZONE TO A TEMPERATURE TO EFFECT DECOMPOSITION OF SAID GASEOUS ALUMINUM MONOHALIDE INTO A GASEOUS ALUMINUM TRIHALIDE AND MOLTEN ELEMENTAL ALUMINUM, SAID MASS OF INERT PARTICLE-FORM MATERIAL BEING FLUIDIZED BY FLOWING THERETHROUGH THE GASEOUS ALUMINUM MONOHALIDE INTRODUCED INTO SAID DECOMPOSING ZONE, AND WITHDRAWING THE RESULTING PRODUCED MOLTEN ELEMENTAL ALUMINUM FROM SAID DECOMPOSING ZONE AS PRODUCT.
Claim 2
Independent Claim
146 words
A METHOD OF PRODUCING MOLTEN ELEMENTAL ALUMINUM WHICH COMPRISES CONTACTING AN ALUMINUM ALLOY WITH A GASEOUS ALUMINUM TRIHALIDE AT AN ELEVATED TEMPERATURE ABOVE ABOUT 1000*C. TO EFFECT REACTION BETWEEN THE ALUMINUM IN SAID ALLOY AND THE GASEOUS ALUMINUM TRIHALIDE TO FORM A GASEOUS ALUMINUM MONOHALIDE, WITHDRAWING THE RESULTING PRODUCED GASEOUS ALUMINUM MONOHALIDE, AND INTRODUCING SAID GASEOUS ALUMINUM MONOHALIDE INTO A DECOMPOSING ZONE, MAINTAINING WITHIN SAID DECOMPOSING ZONE A FLUIDIZED MASS OF INERT PARTICLE-FORM MATERIAL AT A TEMPERATURE BELOW ABOUT 1000*C. EFFECTIVE TO COOL THE GASEOUS ALUMINUM MONOHALIDE INTRODUCED INTO SAID DECOMPOSING ZONE TO A TEMPERATURE TO EFFECT DECOMPOSITION OF SAID GASEOUS ALUMINUM MONOHALIDE INTO A GASEOUS ALUMINUM TRIHALIDE AND MOLTEN ELEMENTAL ALUMINUM, SAID MASS OF INERT PARTICLE-FORM MATERIAL BEING FLUIDIZED BY FLOWING THERETHROUGH THE GASEOUS ALUMINUM MONOHALIDE INTRODUCED INTO SAID DECOMPOSING ZONE, AND WITHDRAWING THE RESULTING PRODUCED MOLTEN ELEMENTAL ALUMINUM FROM SAID DECOMPOSING ZONE AS PRODUCT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |