A combined cesium-strontium extraction/recovery process

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A new solvent extraction process for the simultaneous extraction of cesium and strontium from acidic nitrate media is described. This process uses a solvent formulation comprised of 0.05 M di-t-butylcyclohexano-18-crown-6 (DtBuCH18C6), 0.1 M Crown 100{prime} (a proprietary, cesium-selective derivative of dibenzo-18-crown-6), 1.2 M tributyl phosphate (TBP), and 5% (v/v) lauryl nitrile in an isoparaffinic hydrocarbon diluent. Distribution ratios for cesium and strontium from 4 M nitric acid are 4.13 and 3.46, respectively. A benchtop batch countercurrent extraction experiment indicates that >98% of the cesium and strontium initially present in the feed solution can be removed in only four extraction stages. ... continued below

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6 p.

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Horwitz, E.P.; Dietz, M.L. & Jensen, M.P. March 1, 1996.

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Description

A new solvent extraction process for the simultaneous extraction of cesium and strontium from acidic nitrate media is described. This process uses a solvent formulation comprised of 0.05 M di-t-butylcyclohexano-18-crown-6 (DtBuCH18C6), 0.1 M Crown 100{prime} (a proprietary, cesium-selective derivative of dibenzo-18-crown-6), 1.2 M tributyl phosphate (TBP), and 5% (v/v) lauryl nitrile in an isoparaffinic hydrocarbon diluent. Distribution ratios for cesium and strontium from 4 M nitric acid are 4.13 and 3.46, respectively. A benchtop batch countercurrent extraction experiment indicates that >98% of the cesium and strontium initially present in the feed solution can be removed in only four extraction stages. Through proper choice of extraction and strip conditions, extracted cesium and strontium can be recovered either together or individually.

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6 p.

Notes

INIS; OSTI as DE96007067

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  • International solvent extraction conference, Melbourne (Australia), 17-21 Mar 1996

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  • Other: DE96007067
  • Report No.: ANL/CHM/CP--84143
  • Report No.: CONF-960314--4
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 206982
  • Archival Resource Key: ark:/67531/metadc671277

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • March 1, 1996

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  • June 29, 2015, 9:42 p.m.

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  • Dec. 16, 2015, 12:11 p.m.

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Horwitz, E.P.; Dietz, M.L. & Jensen, M.P. A combined cesium-strontium extraction/recovery process, article, March 1, 1996; Illinois. (digital.library.unt.edu/ark:/67531/metadc671277/: accessed November 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.