US2606148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for electrolytic preparation of vanadium oxide
Assignee: Natural Products Refining Co
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Filing: 1948-11-02
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Granted: 1952-08-05
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Expires: 1968-11-02
Abstract
No abstract record available.
Inventors
- 👤 Mario J Portanova
- 👤 Rosinger Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:28
CPC Classifications
C; C01; C01G; C01G31/00; C01G31/02; C25; C25B; C25B1/00; C25B1/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
AN ELECTROLYTIC PROCESS FOR OBTAINING VANADIUM OXIDE COMPRISING SUBJECTING AN ALKALIMETAL VANADATE WATER SOLUTION TO ELECTROLYTIC ACTION WITH THA AID OF A STEEL ANODE SO AS TO OBTAIN A PRECIPITATE OF VANADIUM OXIDE SUBSTANTIALLY FREE FROM IRON, AT A CONCENTRATION ADJUSTED TO APPROXIMATELY 078 GRAM OF SODIUM VANADATE PER CC. AT A PH OF 7.0 AND A CATHODE IN A CATHOLYTE OF A WEAK CAUSTIC SODA SOLUTION, WITH A DIRECT CURRENT DENSITY OF APPROXIMATELY 25 TO 35 AMPERES PER SQUARE FOOT OF THE ANODE AT 6 TO 8 VOLTS AND A TEMPERATURE OF ABOUT 60-90* C.
Claim 2
Dependent Claim
96 words
AN ELECTROLYTIC PROCESS FOR OBTAINING VANADIUM OXIDE COMPRISING SUBJECTING AN ALKALIMETAL VANADATE WATER SOLUTION TO ELECTROLYTIC ACTION WITH THA AID OF A STEEL ANODE SO AS TO OBTAIN A PRECIPITATE OF VANADIUM OXIDE SUBSTANTIALLY FREE FROM IRON, AT A CONCENTRATION ADJUSTED TO APPROXIMATELY 078 GRAM OF SODIUM VANADATE PER CC. AT A PH OF 7.0 AND A CATHODE IN A CATHOLYTE OF A WEAK CAUSTIC SODA SOLUTION, WITH A DIRECT CURRENT DENSITY OF APPROXIMATELY 25 TO 35 AMPERES PER SQUARE FOOT OF THE ANODE AT 6 TO 8 VOLTS AND A TEMPERATURE OF ABOUT 60-90* C.
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) | 1955-08-05 | 1956-02-04 | 1956-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-05 | 1960-02-04 | 1960-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-05 | 1964-02-04 | 1964-08-05 | $7700.00 | Window Closed / Lapsed |