Method for preparing high purity vanadium
Abstract
A method for preparing high purity vanadium having a low silicon content has been developed. Vanadium pentoxide is reduced with a stoichiometric, or slightly deficient amount of aluminum to produce a vanadium-aluminum alloy containing an excess of oxygen. Silicon is removed by electron-beam melting the alloy under oxidizing conditions to promote the formation of SiO which is volatile at elevated temperatures. Excess oxygen is removed by heating the alloy in the presence of calcium metal to form calcium oxide.
- Inventors:
-
- Ames, IA
- Issue Date:
- Research Org.:
- Ames Laboratory (AMES), Ames, IA; Iowa State Univ., Ames, IA (United States)
- OSTI Identifier:
- 865976
- Patent Number(s):
- 4610720
- Application Number:
- 06/610,905
- Assignee:
- United States of America as represented by Department of Energy (Washington, DC)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
- DOE Contract Number:
- W-7405-ENG-82
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; preparing; purity; vanadium; silicon; content; developed; pentoxide; reduced; stoichiometric; slightly; deficient; amount; aluminum; produce; vanadium-aluminum; alloy; containing; excess; oxygen; removed; electron-beam; melting; oxidizing; conditions; promote; formation; sio; volatile; elevated; temperatures; heating; presence; calcium; metal; form; oxide; oxidizing conditions; alloy containing; calcium oxide; elevated temperatures; elevated temperature; aluminum alloy; excess oxygen; form calcium; calcium metal; purity vanadium; /75/
Citation Formats
Schmidt, Frederick, and Carlson, O Norman. Method for preparing high purity vanadium. United States: N. p., 1986.
Web.
Schmidt, Frederick, & Carlson, O Norman. Method for preparing high purity vanadium. United States.
Schmidt, Frederick, and Carlson, O Norman. Tue .
"Method for preparing high purity vanadium". United States. https://www.osti.gov/servlets/purl/865976.
@article{osti_865976,
title = {Method for preparing high purity vanadium},
author = {Schmidt, Frederick and Carlson, O Norman},
abstractNote = {A method for preparing high purity vanadium having a low silicon content has been developed. Vanadium pentoxide is reduced with a stoichiometric, or slightly deficient amount of aluminum to produce a vanadium-aluminum alloy containing an excess of oxygen. Silicon is removed by electron-beam melting the alloy under oxidizing conditions to promote the formation of SiO which is volatile at elevated temperatures. Excess oxygen is removed by heating the alloy in the presence of calcium metal to form calcium oxide.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {9}
}
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