Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Ionic Equilibria and Ion Exchange of Molybdenum(VI) from Strong Acid Solution

  • Lee, Man-Seung (Department of Advanced Materials Science & Engineering, Mokpo National University) ;
  • Sohn, Seong-Ho (Korea Institute of Industrial Technology, Incheon Technology Service Center) ;
  • Lee, Myung-Ho (Nuclear Chemistry Research Division, Korea Atomic Research Institute)
  • Received : 2011.06.09
  • Accepted : 2011.08.18
  • Published : 2011.10.20
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Abstract

Ion exchange experiments of molybdenum(VI) from strong HCl and $H_2SO_4$ solution have been done to investigate the existence of anionic complexes. The concentration of HCl and $H_2SO_4$was changed from 1 to 9 M. From the data on the complex formation of molybdenum in aqueous solution, a new distribution diagram of Mo(VI) was constructed in the pH range from zero to 10. AG 1 X-8, an anion exchange resin, and Diphonix, a cation exchange resin were used in the loading experiments. Ion exchange results indicate that anionic complexes of Mo(VI) begins to form from 3 M HCl and 1 M $H_2SO_4$ solution and the tendency to form anionic complexes is stronger in HCl than in $H_2SO_4$ solution. Our results can be utilized in the analysis of Mo(VI) in strong acid solution and in the design of a process to separate Mo(VI).

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References

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