| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to sorbents and use thereof. The sorbent for antimony anions comprises particles or granules of zirconium oxide and has a distribution coefficient for the antimony anions of at least 10000 ml/g at a pH in the range of 2 to 10. The sorbent comprises particles with an average particle size in the range of about 10 nm to 100 um and having a flow rate of 100 to 10000 bed volumes per hour; the granules with an average size of 0.1 to 2 mm and having a flow rate of 10 to 50 bed volumes per hour. Also claimed is a method for the novel sorbent preparation and a method for antimony and, potentially, technetium removal from aqueous solutions, specifically from nuclear waste effluents. The distribution coefficient is high, which makes the material suitable for industrial application.EFFECT: preparation process is straightforward and the sorbent can be produced from readily available materials at moderate conditions.20 cl, 5 dwg, 5 tbl |
