Aqueous complexes in f-element separation science

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Powerful and/or selective extractant molecules/sorbents are a necessary component of an efficient ion exchange or solvent extraction separation process. However, selectivity in extraction and efficiency in process design often rely on reactions occurring in or moderated by the aqueous medium. The focus of this report in on the role of the aqueous phase and reaction that occur in aquo in defining separation efficiency and metal ion selectivity. As the programmatic emphasis is on actinide solution chemistry, the separations chemistry of the f-elements will be used to illustrate the principal role of aqueous chemistry in separation science. Most of the arguments ... continued below

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40 p.

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Nash, K.L. November 1, 1997.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this article can be viewed below.

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  • Nash, K.L. Argonne National Lab., IL (United States). Chemistry Div.

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Description

Powerful and/or selective extractant molecules/sorbents are a necessary component of an efficient ion exchange or solvent extraction separation process. However, selectivity in extraction and efficiency in process design often rely on reactions occurring in or moderated by the aqueous medium. The focus of this report in on the role of the aqueous phase and reaction that occur in aquo in defining separation efficiency and metal ion selectivity. As the programmatic emphasis is on actinide solution chemistry, the separations chemistry of the f-elements will be used to illustrate the principal role of aqueous chemistry in separation science. Most of the arguments developed apply to metal ion separations chemistry and processes in general. The discussion will consider the application of aqueous complexants, incorporation of aqueous complexants into the extracted complex, and the effect of properties of the aqueous medium on separation efficiency and selectivity. Several historically important separations processes will be considered along with recent efforts in these laboratories to design and characterize new water soluble complexants for improved f-element separations.

Physical Description

40 p.

Notes

INIS; OSTI as DE98050522

Source

  • 214. American Chemical Society meeting, Las Vegas, NV (United States), 7-13 Sep 1997

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  • Other: DE98050522
  • Report No.: ANL/CHM/CP--93220
  • Report No.: CONF-970962--
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 554770
  • Archival Resource Key: ark:/67531/metadc697105

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  • November 1, 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • Dec. 15, 2015, 12:05 p.m.

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Nash, K.L. Aqueous complexes in f-element separation science, article, November 1, 1997; Illinois. (digital.library.unt.edu/ark:/67531/metadc697105/: accessed August 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.