Separation of zirconium and hafnium by solvent extraction using mixture of TBP and Cyanex 923 |
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| Authors: | M Taghizadeh M Ghanadi E Zolfonoun |
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| Affiliation: | a Nuclear Fuel Cycle Research School, Nuclear Science & Technology Research Institute, End of North Karegar Ave., P.O. Box 14395-836, Tehran, Iran |
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| Abstract: | In this study, a new Zr/Hf separation procedure by solvent extraction is proposed. The method is based on using the mixture of TBP and Cyanex 923 as extractant in the organic phase. Several parameters including; TBP/Cyanex 923 volume ratio, extractant concentration in the organic phase, nitric acid and NaNO3 concentration in aqueous phase have been investigated. The results demonstrate better condition respect to traditional TBP/HNO3 process. Lower required acid concentration and more zirconium extraction are some advantages of the new separation process. |
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