US2849279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic promotion of the adsorption of vanadium on an anionic exchange resin
Assignee: Individual
•
Filing: 1952-10-07
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Granted: 1958-08-26
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Expires: 1972-10-07
Abstract
No abstract record available.
Inventors
- 👤 Richard H Bailes
- 👤 David A Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:41
CPC Classifications
B; B01; B01J; B01J41/00; B01J41/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
IN A PROCESS FOR RECOVERING VANADIUM FROM AN ANIONIC EXCHANGE RECALCITRANT ACIDIC PHOSPHATIC SOLUTION, THE STEPS COMPRISING OXIDIZING THE VANADIUM IN THE SOLUTION TO THE PENTAVALENT STATE, ADDING A FLUORIDIC ANIONIC EXCHANGE PROMOTER TO THE SOLUTION, CONTACTING SAID SOLUTION WITH AN ANIONIC EXCHANGE RESIN WHEREBY THE ADSORPTION OF THE PENTAVALENT VANADIUM IS EFFECTUATED THEREON BY SAID PROMOTER, AND ELUTING SAID VANADIUM FROM SAID RESIN.
Claim 2
Dependent Claim
64 words
IN A PROCESS FOR RECOVERING VANADIUM FROM AN ANIONIC EXCHANGE RECALCITRANT ACIDIC PHOSPHATIC SOLUTION, THE STEPS COMPRISING OXIDIZING THE VANADIUM IN THE SOLUTION TO THE PENTAVALENT STATE, ADDING A FLUORIDIC ANIONIC EXCHANGE PROMOTER TO THE SOLUTION, CONTACTING SAID SOLUTION WITH AN ANIONIC EXCHANGE RESIN WHEREBY THE ADSORPTION OF THE PENTAVALENT VANADIUM IS EFFECTUATED THEREON BY SAID PROMOTER, AND ELUTING SAID VANADIUM FROM SAID RESIN.
References Cited (Backward Citations)
US2756123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |