Patent US3388993A successfully refreshed from Google Patents.
US3388993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of separating metal chlorides
Assignee: West Virginia Pulp and Paper Co
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Filing: 1963-10-08
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Granted: 1968-06-18
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Expires: 1983-10-08
Abstract
No abstract record available.
Inventors
- 👤 Hal D Peterson
- 👤 James L Drobnick
- 👤 Stanton B Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:33
CPC Classifications
C; C01; C01G; C01G30/00; C01G30/001; B; B01; B01D; B01D53/00; B01D53/02; C01B; C01B19/00; C01B19/005; C01B35/00; C01B35/06; C01G1/00; C01G1/06; C01G28/00; C01G28/007; C01P; C01P2002/00; C01P2002/80; C01P2006/00; C01P2006/32; C01P2006/33; C01P2006/35; C01P2006/80
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
141 words
THE METHOD OF FRACTIONZTING A MIXTURE OF FULLY CHLORNIATED METAL CHLORIDES OF DIFFERENT METALS WHICH COMPRISES CONTACTING A GASEOUS MIXTURE CONTAINING AT LEAST TWO METAL CHLORIDES OF DIFFERENT METALS SELECTED FROM THE GROUP CONSISTING OF THE CHLORIDES OF BERYLLIUM, BISMUTH, INDIUM, TELLURIUM, ALUMINUM, IRON, GALLIUM, HAFNIUM, ZIRCONIUM, MERCURY, SELENIUM, GOLD, TANTALUM, NIOBIUM, MOLYBDENUM, TUNGSTEN, ANTIMONY, VANADIUM, TITANIUM, ARSENSIC, TIN, GERMANIUM, AND BORON WITH ACTIVE CARBON MAINTAINED AT A TEMPERATURE BETWEEN ABOUT 100 AND 700* C. WHICH IS ABOUT THE VOLATILIZATION TEMPERATURE OF THE METAL CHLORIDES BEING FRACTIONATED WHEREBY SAID ACTIVE CARBON SELECTIVELY ADSORBS THER CHLORRIDE OF SOME OF THE METALS IN GREATER RELATIVE QUANTITIES THAN THE CHLORIDE OF OTHER METALS PRODUCTING AT LEAST TWO FRACTIONS EACH HAVING A COMPOSITION OF METAL CHLORIDES DIFFERING FROM THAT OF THE ORIGINAL GASEOUS MIXTURE OF METAL CHLORIDES, AND RECOVERING AT LEAST ONE OF SAID FRACTIONS.
Claim 2
Independent Claim
141 words
THE METHOD OF FRACTIONZTING A MIXTURE OF FULLY CHLORNIATED METAL CHLORIDES OF DIFFERENT METALS WHICH COMPRISES CONTACTING A GASEOUS MIXTURE CONTAINING AT LEAST TWO METAL CHLORIDES OF DIFFERENT METALS SELECTED FROM THE GROUP CONSISTING OF THE CHLORIDES OF BERYLLIUM, BISMUTH, INDIUM, TELLURIUM, ALUMINUM, IRON, GALLIUM, HAFNIUM, ZIRCONIUM, MERCURY, SELENIUM, GOLD, TANTALUM, NIOBIUM, MOLYBDENUM, TUNGSTEN, ANTIMONY, VANADIUM, TITANIUM, ARSENSIC, TIN, GERMANIUM, AND BORON WITH ACTIVE CARBON MAINTAINED AT A TEMPERATURE BETWEEN ABOUT 100 AND 700* C. WHICH IS ABOUT THE VOLATILIZATION TEMPERATURE OF THE METAL CHLORIDES BEING FRACTIONATED WHEREBY SAID ACTIVE CARBON SELECTIVELY ADSORBS THER CHLORRIDE OF SOME OF THE METALS IN GREATER RELATIVE QUANTITIES THAN THE CHLORIDE OF OTHER METALS PRODUCTING AT LEAST TWO FRACTIONS EACH HAVING A COMPOSITION OF METAL CHLORIDES DIFFERING FROM THAT OF THE ORIGINAL GASEOUS MIXTURE OF METAL CHLORIDES, AND RECOVERING AT LEAST ONE OF SAID FRACTIONS.
Claim 3
Dependent Claim
59 words
THE METHOD OF CLAIM 1 WHEREIN THER GASEOUS MIXTURE OF METAL CHLORIDES IS PASSED THROUGH A BED OF ACTIVE CARBON, THE EFFLUENT FRACTION AFTER PASSAGE THROUGH SAID BED IS RECOVERED AND THE METAL CHLORIDE CONTENT OF SAID EFFLUENT FRACTION IS CONVERTED TO THE BASIC METAL BY HYDROLYSIS OF THE METAL CHLORIDE WITH STEAMS AT AN ELEVATED TEMPERATURE AND SMELTING.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-18 | 1971-12-18 | 1972-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-18 | 1975-12-18 | 1976-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-18 | 1979-12-18 | 1980-06-18 | $7700.00 | Window Closed / Lapsed |