Pure Columbium
- 1 January 1944
- journal article
- Published by The Electrochemical Society in Transactions of The Electrochemical Society
- Vol. 85 (1) , 89-95
- https://doi.org/10.1149/1.3071582
Abstract
After separating columbium from tantalum and other constituents by fractional crystallization of complex salts and fractionation of metal chlorides at elevated temperature, a very pure columbium oxide is obtained. A new process for reducing this oxide to pure columbium metal is described. This method is based on the fact that, when an intimate mixture of columbium carbide and columbium oxide is heated in a vacuum, columbium metal is produced. This is then converted to columbium metal powder and into columbium metal bars by powder metallurgy. A white, soft, ductile metal is finally obtained whose applications are briefly considered.Keywords
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