Investigation of sulphur isotope variation due to different processes applied during uranium ore concentrate production

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• 作者：Judit Krajkó ; Zsolt Varga ; Maria Wallenius…
• 刊名：Journal of Radioanalytical and Nuclear Chemistry
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：309
• 期：3
• 页码：1113-1121
• 全文大小：603 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Nuclear Chemistry
  Physical Chemistry
  Nuclear Physics, Heavy Ions and Hadrons
  Diagnostic Radiology
  Inorganic Chemistry
  
• 出版者：Akad茅miai Kiad贸, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic
• ISSN：1588-2780
• 卷排序：309

文摘

The applicability and limitations of sulphur isotope ratio as a nuclear forensic signature have been studied. The typically applied leaching methods in uranium mining processes were simulated for five uranium ore samples and the n(34S)/n(32S) ratios were measured. The sulphur isotope ratio variation during uranium ore concentrate (UOC) production was also followed using two real-life sample sets obtained from industrial UOC production facilities. Once the major source of sulphur is revealed, its appropriate application for origin assessment can be established. Our results confirm the previous assumption that process reagents have a significant effect on the n(34S)/n(32S) ratio, thus the sulphur isotope ratio is in most cases a process-related signature.KeywordsSulphur isotopeUranium leachingUranium ore concentrateNuclear forensicsProcess-related signatureOrigin assessment