US3607005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of extracting vanadium
Assignee: GORDON H CHAMBERS
•
Filing: 1968-07-15
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Granted: 1971-09-21
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Expires: 1988-07-15
Abstract
Abstract To separate vanadium from vanadium-bearing material such as slag heated to a temperature at least 600* C. by forming a volatile hydroxide in contact with water vapor and air, and to separate vanadium oxide by cooling the vanadium-containing gas thus formed.
Inventors
- 👤 Gordon H Chambers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:22
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/20; C22B34/22
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
13 words
The process of claim 1, which comprises maintaining the gas at atmospheric pressure.
Claim 2
Dependent Claim
13 words
The process of claim 1, which comprises maintaining the gas at superatmospheric pressure.
Claim 3
Dependent Claim
27 words
The process of claim 1, which comprises passing the gas in contact with the vanadium-bearing mineral by blowing the gas through a bed of vanadium-bearing mineral particles.
Claim 4
Dependent Claim
18 words
The process of claim 1, in which the temperature of the gas is between 600* and 1,000* C.
Claim 5
Dependent Claim
93 words
The process of removing at least some of the vanadium present in solid titanium mineral or slags derived therefrom, and thereby reducing the tendency of vanadium to discolor the mineral, which comprises reducing the mineral to particles through 10 per linear per linear inch, flowing in contact with the mineral a gas comprising water vapor and oxygen while maintaining the mineral at a temperature of at least 600* C. and below 1,300* C., removing the vanadium-bearing gas from the titanium mineral, and then cooling the gas below 600* C. to separate the vanadium.
References Cited (Backward Citations)
US3240557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |