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Pure Columbium and Tantalum Oxides by Liquid-Liquid Exraction

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Abstract

Complete separation of the metals columbium and tantalum is achieved at the Albany, Ore., plant of Wah Chang Corp. by solvent extraction of the acid fluorides. The effect of acidity on the solubilities of two fluorides is the mechanism of their separation.

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Authors and Affiliations

  1. Wah Chang Corp., Albany, Ore., USA

    Carl W. Carlson & Ralph H. Nielsen

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  1. Carl W. Carlson
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  2. Ralph H. Nielsen
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Carlson, C.W., Nielsen, R.H. Pure Columbium and Tantalum Oxides by Liquid-Liquid Exraction. JOM 12, 472–475 (1960). https://doi.org/10.1007/BF03377994

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  • DOI: https://doi.org/10.1007/BF03377994

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