Patent US2762702A successfully refreshed from Google Patents.
US2762702A
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Process of distilling metals with halide vapors
Assignee: Kaiser Aluminum and Chemical Corp
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Filing: 1952-09-29
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Granted: 1956-09-11
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Expires: 1972-09-29
Abstract
No abstract record available.
Inventors
- 👤 Frank L Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:23
CPC Classifications
C; C22; C22B; C22B21/00; C22B21/0038; C22B21/0046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
IN A PROCESS FOR DISTILLING A NORMALLY NON-VOLATILE METAL FROM MATERIAL BEARING THE SAME WHEREIN THE METAL CONTAINED IN THE MATERIAL IS REACTED AT ELEVATED TEMPERATURES WITH THE VAPOR PHASE OF A HALIDE GENERATED DIRECTLY FROM THE SOLID STATE TO VAPORIZE SAID METAL AS ITS UNSTABLE LOWER HALIDE AND THEN CONVERTING SAID LOWER HALIDE INTO METAL AND A STABLE HALIDE BY CONDENSATION OF THE METAL BROUGHT ABOUT BY COOLING TO RECOVER THE METAL THEREFROM. THE IMPROVEMENT COMPRISING GENERATING SAID HALIDE VAPOR FROM THE LIQUID STATE BY MAINTAINING THE HALIDE UNDER CONDITIONS OF TEMPERATURE AND PRESSURE AT LEAST AT THE TRIPLE POINT OF SAID HALIDE.
Claim 2
Dependent Claim
104 words
IN A PROCESS FOR DISTILLING A NORMALLY NON-VOLATILE METAL FROM MATERIAL BEARING THE SAME WHEREIN THE METAL CONTAINED IN THE MATERIAL IS REACTED AT ELEVATED TEMPERATURES WITH THE VAPOR PHASE OF A HALIDE GENERATED DIRECTLY FROM THE SOLID STATE TO VAPORIZE SAID METAL AS ITS UNSTABLE LOWER HALIDE AND THEN CONVERTING SAID LOWER HALIDE INTO METAL AND A STABLE HALIDE BY CONDENSATION OF THE METAL BROUGHT ABOUT BY COOLING TO RECOVER THE METAL THEREFROM. THE IMPROVEMENT COMPRISING GENERATING SAID HALIDE VAPOR FROM THE LIQUID STATE BY MAINTAINING THE HALIDE UNDER CONDITIONS OF TEMPERATURE AND PRESSURE AT LEAST AT THE TRIPLE POINT OF SAID HALIDE.
References Cited (Backward Citations)
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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) | 1959-09-11 | 1960-03-12 | 1960-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-11 | 1964-03-12 | 1964-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-11 | 1968-03-12 | 1968-09-11 | $7700.00 | Window Closed / Lapsed |