Determination of optimum process conditions for the extraction and separation of zirconium and hafnium by solvent extraction

Taguchi's method was used to determine the optimum conditions for separation of zirconium from hafnium by solvent extraction. The experimental conditions were studied in the range of 0.1 to 2.0 M for three different acids and TBP, D2EHPA or Cyanex 272 as extractant. The optimum extraction of zi...

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Bibliographic Details
Published in:	Hydrometallurgy Vol. 90; no. 2-4; pp. 115 - 120
Main Authors:	Taghizadeh, M., Ghasemzadeh, R., Ashrafizadeh, S.N, Saberyan, K., Maragheh, M. Ghanadi
Format:	Journal Article
Language:	English
Published:	Amsterdam Elsevier B.V 01-02-2008 Elsevier
Subjects:	Applied sciences Cyanex 272 D2EHPA Exact sciences and technology Extraction Hafnium Metals. Metallurgy Production of metals Separation Taguchi TBP Zirconium Zirconium Separation TBP Hafnium Cyanex 272 D2EHPA Taguchi Extraction Solvent extraction Solvent Operating conditions Hydrometallurgy
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Summary:	Taguchi's method was used to determine the optimum conditions for separation of zirconium from hafnium by solvent extraction. The experimental conditions were studied in the range of 0.1 to 2.0 M for three different acids and TBP, D2EHPA or Cyanex 272 as extractant. The optimum extraction of zirconium was 71% when 2.0 M nitric acid and Cyanex 272 were used. The optimum zirconium/hafnium separation was also achieved using this combination.
ISSN:	0304-386X 1879-1158
DOI:	10.1016/j.hydromet.2007.10.002