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'Halide Separation Hydrous' in keywords
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1980 (1)
1Author    KlausG. Heumann, Klaus Baier, Gerald WibmerRequires cookie*
 Title    Chlor-Isotopenseparation an einem wasserhaltigen Zirkondioxidaustauscher Chlorine Isotope Separation Using an Hydrous Zirconium Dioxide Exchanger  
 Abstract    zirconium dioxide is used in column experiments for separating the halide ions as well as for isotope fractionation of chlorine. The preparation of the zirconium dioxide particles is carried out by homogeneous hydrolysis of a zirconyl chloride solution using hexamethylenetetramine. The separation order of the halides is I -, Br -and Cl -in contrast to the inverse separation order using a strongly basic anion exchange resin. In chlorine isotope separation experiments an enrichment of 35 C1~ is found in the first fractions, whereas the last fractions show a significant enrichment of 37 C1~. This also indicates an inversion of the isotope separation compared with a strongly basic anion exchange resin. A dependence of the isotope fractionation on the concentration of the NaNC>3 solution used as eluant is found. With increasing concentration the isotope fractionation decreases. Using a 0.5 M NaN03 solution the elementary separation effect was calculated e = 6,1 • 10~ 4 . This is one of the highest isotope fractionations known in a chloride isotope exchange system. The results show that the electrolyte behaviour of isotopes is comparable to that of a series of homologous elements. 
  Reference    Z. Naturforsch. 35b, 642—647 (1980); eingegangen am 11. Januar 1980 
  Published    1980 
  Keywords    Isotope Separation, Chlorine, Zirconium Dioxide, Column Experiments, Halide Separation Hydrous 
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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-0642.pdf 
 Identifier    ZNB-1980-35b-0642 
 Volume    35