US2770522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of purifying and recovering vanadium from phosphate-containing solutions
Assignee: Individual
•
Filing: 1952-06-05
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Granted: 1956-11-13
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Expires: 1972-06-05
Abstract
No abstract record available.
Inventors
- 👤 Richard H Bailes
- 👤 Robert R Grinstead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:42
CPC Classifications
B; B01; B01J; B01J39/00; B01J39/04; C; C01; C01G; C01G31/00; C01G31/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
IN A PROCESS FOR PURIFYING AND RECOVERING VANADIUM VALUES FROM A SOLUTION CONTAINING TETRAVELENT VANADIUM CATIONS AND AN INORGANIC PHOSPHATIC IMPURITY, THE STEP COMPRISING ADSORBING THE TETRAVALENT VANADIUM ON A CATIONIC ECHANGE RESIN, WHEREBY A PORTION OF THE PHOSPHATE IMPURITY IS ALSO ADSORBED THEREON, WASHING THE RESIN WITH WATER THEREBY REMOVING A PORTION OF THE PHOSPHATIC IMPURITY FROM THE RESIN, ELUTING THE VANADIUM FROM THE RESIN WITH AN AQUEOUS ELUTRIANT MEANS, AND RECOVERING THE VANADIUM FROM THE ELUATE.
Claim 2
Dependent Claim
78 words
IN A PROCESS FOR PURIFYING AND RECOVERING VANADIUM VALUES FROM A SOLUTION CONTAINING TETRAVELENT VANADIUM CATIONS AND AN INORGANIC PHOSPHATIC IMPURITY, THE STEP COMPRISING ADSORBING THE TETRAVALENT VANADIUM ON A CATIONIC ECHANGE RESIN, WHEREBY A PORTION OF THE PHOSPHATE IMPURITY IS ALSO ADSORBED THEREON, WASHING THE RESIN WITH WATER THEREBY REMOVING A PORTION OF THE PHOSPHATIC IMPURITY FROM THE RESIN, ELUTING THE VANADIUM FROM THE RESIN WITH AN AQUEOUS ELUTRIANT MEANS, AND RECOVERING THE VANADIUM FROM THE ELUATE.
References Cited (Backward Citations)
US1437191A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-13 | 1960-05-14 | 1960-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-13 | 1964-05-14 | 1964-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-13 | 1968-05-14 | 1968-11-13 | $7700.00 | Window Closed / Lapsed |