Deoxidation of a refractory metal
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United States of America Patent
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Jun 11, 1991
Issued Date -
N/A
app pub date -
Feb 22, 1990
filing date -
Sep 23, 1988
priority date (Note) -
Expired
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Abstract
A process for the deoxidation of a refractory metal containing minor concentrations of oxygen is disclosed. In this process the refractory metal is contacted with a metallic deoxidant in a dry, inert atmosphere. The metallic deoxidant and the refractory metal are heated to at least liquefy the metallic deoxidant and at least partially deoxidize the refractory metal. The refractory metal is thereafter cooled and contaminants on its surface are removed.
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