US3227545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallurgical process
Assignee: Independence Foundation
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Filing: 1962-09-26
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Granted: 1966-01-04
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Expires: 1982-09-26
Abstract
No abstract record available.
Inventors
- 👤 Clarence L Hildreth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:39
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/20; C22B34/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
PROCESS FOR THE REMOVAL AND RECOVERY OF VANADIUM VALUES FROM VANADIUM-BEARING ORES, SLAGS AND LIKE MATERIALS COMPRISING THE STEPS OF REACTING A FINELY DIVIDED QUANTITY OF SAID MATERIAL WITH A FREE-CHLORINE CONTAINING GAS AT A TEMPERATURE OF APPROXIMATELY 1000*C. TO EFFECT PRODUCTION OF A MIXTURE OF GASEOUS CHLORIDES CONTAINING SAID VANADIUM AND A SOLID RESIDUE; SEPARATING SAID RESIDUE AND SAID GASEOUS MIXTURES; COOLING SAID GASEOUS MIXTURE SO AS TO CONDENSE ANY CONTAINED IRON THEREFROM AS FERRIC CHLORIDE; CONDENSING SAID GASEOUS MIXTURE TO THE LIQUID STATE; DISTILLING SAID LIQUID TO EFFECT SEPARATION OF SAID VANADIUM VALUES FROM REMAINING IMPURITIES; AND RECOVERING SAID VANADIUM FROM SAID DISTILLATION OPERATION, PRIMARILY AS THE OXYTRICHLORIDE.
Claim 2
Dependent Claim
110 words
PROCESS FOR THE REMOVAL AND RECOVERY OF VANADIUM VALUES FROM VANADIUM-BEARING ORES, SLAGS AND LIKE MATERIALS COMPRISING THE STEPS OF REACTING A FINELY DIVIDED QUANTITY OF SAID MATERIAL WITH A FREE-CHLORINE CONTAINING GAS AT A TEMPERATURE OF APPROXIMATELY 1000*C. TO EFFECT PRODUCTION OF A MIXTURE OF GASEOUS CHLORIDES CONTAINING SAID VANADIUM AND A SOLID RESIDUE; SEPARATING SAID RESIDUE AND SAID GASEOUS MIXTURES; COOLING SAID GASEOUS MIXTURE SO AS TO CONDENSE ANY CONTAINED IRON THEREFROM AS FERRIC CHLORIDE; CONDENSING SAID GASEOUS MIXTURE TO THE LIQUID STATE; DISTILLING SAID LIQUID TO EFFECT SEPARATION OF SAID VANADIUM VALUES FROM REMAINING IMPURITIES; AND RECOVERING SAID VANADIUM FROM SAID DISTILLATION OPERATION, PRIMARILY AS THE OXYTRICHLORIDE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |