skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

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:
 [1];  [1]
  1. Ames, IA
Issue Date:
Research Org.:
Ames Lab., Ames, IA (United States); 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}
}

Patent:

Save / Share: