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http://dx.doi.org/10.7844/kirr.2011.20.6.056

Distribution of Zr(IV) Ion Species in Aqueous Solution  

Lee, Man-Seung (Department of Advanced Materials Science and Engineering, Mokpo National University)
Lee, Hwa-Young (Battery Research Center, Korea Institute of Science & Technology)
Publication Information
Resources Recycling / v.20, no.6, 2011 , pp. 56-62 More about this Journal
Abstract
Zirconium is used in nuclear reactors as a structural material due to its excellent corrosion resistance and to low neutron crosssection. Variation in the distribution and solubility of Zr(IV) with solution pH was obtained. Distribution of Zr(IV) containing species in HCl and $HNO_3$ solution was analyzed by considering the complex formation of Zr(IV) species with the anion of the inorganic acid. Bromley interaction parameter between $ZrO^{2+}$ and nitrate ion was estimated by using the reported data on the solvent extraction of Zr(IV) by Cyanex272 from $HNO_3$ solution. This Bromley parameter can be utilized in calculating extraction isotherm of Zr(IV) and in predicting the separation factor between Zr(IV) and Hf(IV).
Keywords
Zirconium; Nitric acid; Species Distribution; Solubility; Interaction parameter;
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