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Sorption of Germanium (IV) on Resin Having Methyl-amino-glucitol Moiety
Authors: Helena Parschová, Kateřina
Jurečková, Eva Mištová and Luděk Jelínek
Affiliation: Department of Power
Engineering, ICT Prague, Czech Republic
Published in:
Ion Exch. Lett. 2010,
2(4), 46-49
Permanent link to this page: http://iel.vscht.cz/abstracts/1803-4039-02-0046.htm
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Keywords: germanate; methyl-amino-glucitol
resin; sorption
Abstract: This work deals with selective removal of Ge oxoanions from contaminated water resources by synthetic resin having 1-deoxy-1-(methylamino)-D-glucitol functional groups on poly(styrene-co-divinylbenzene) matrix. During dynamic column experiments, the following general criteria were studied: comparison of germanium sorption on the sorbent in protonated and free base forms, optimal pH-range for sorption and the effect of concentration of germanium and accompanying anions on breakthrough capacity. The optimal pH range for sorption of germanium oxoanions onto the studied resin is 6-9. For selective uptake of germanium oxoanions sorbent must be in the free base form. Effective desorption of germanium oxoanions was achieved with 7 BV of 1 mol.L-1 HCl.