Selective and direct sorption of zirconium from acidic leach liquor of zircon concentrate by rice bran |
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| Authors: | Ehsan Zolfonoun Akbar Boveiri Monji Mohammad Taghizadeh Seyed Javad Ahmadi |
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| Affiliation: | 1. Vienna University of Technology, Institute of Chemical Technologies and Analytics, Division of Instrumental Analytical Chemistry, Getreidemarkt 9/164-IAC, A-1060 Vienna, Austria;2. University of Natural Resources and Life Sciences, Department of Forest and Soil Sciences, Institute of Soil Research, Konrad Lorenz Straße 24, A-3430 Tulln, Austria |
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| Abstract: | A new method for extraction of zirconium from leach liquor of zircon concentrate is proposed. The procedure is based on the adsorption of Zr(IV) ions on rice bran. The sorption capacity of the biomass for zirconium is 50 mg g?1. Adsorption equilibrium was achieved in less than 1 min and slightly affected by solution acidity. In the optimum conditions, the adsorption efficiencies of other associated metal ions such as Ti4+, Fe3+, Al3+, La3+, Ce3+ were significantly lower than Zr(IV) ion and this biomass is excellent sorbent for the selective uptake of zirconium from acidic aqueous solutions. |
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