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Title: 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:
;
Issue Date:
OSTI Identifier:
6123665
Application Number:
ON: TI85006412
Assignee:
Dept. of Energy EDB-85-037974
DOE Contract Number:  
W-7405-ENG-82
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; VANADIUM; CHEMICAL PREPARATION; ELECTRON BEAM MELTING; OXIDATION; REDUCTION; REMOVAL; SILICON; VANADIUM OXIDES; CHALCOGENIDES; CHEMICAL REACTIONS; ELEMENTS; MELTING; METALS; OXIDES; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; SEMIMETALS; SYNTHESIS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; VANADIUM COMPOUNDS; 360101* - Metals & Alloys- Preparation & Fabrication

Citation Formats

Schmidt, F., and Carlson, O.N. Method for preparing high purity vanadium. United States: N. p., 1984. Web.
Schmidt, F., & Carlson, O.N. Method for preparing high purity vanadium. United States.
Schmidt, F., and Carlson, O.N. Wed . "Method for preparing high purity vanadium". United States.
@article{osti_6123665,
title = {Method for preparing high purity vanadium},
author = {Schmidt, F. and Carlson, O.N.},
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 = {1984},
month = {5}
}