Method for preparing high purity vanadium

Patent · Wed May 16 00:00:00 EDT 1984

OSTI ID:6123665

Schmidt, F; Carlson, O N

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.

• DOE Contract Number: W-7405-ENG-82
• Assignee: Dept. of Energy
• Application Number: ON: TI85006412
• OSTI ID: 6123665
• Country of Publication: United States
• Language: English

Related Subjects

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