Transuranic separation using organophophorus extractants adsorbed onto superparamagnetic carriers.

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Polymeric coated ferromagnetic carriers with an absorbed layer of octyl(phenyl)-N,N-diisobutylcarbamoylmethylphosphine oxide (CMPO) diluted by tributyl phosphate (TBP) are being evaluated for application in the separation and the recovery of low concentrations of americium, plutonium, and uranium from nuclear waste solutions. Due to their chemical nature, these extractants selectively complex americium and plutonium contaminants onto the particles and the complexed particles can be recovered from the solution using a magnet. Physical and chemical characterization of the extractant-absorbed particles were performed by gamma and liquid scintillation counting, scanning electron microscopic (SEM) micrograph, and other physical measurements. Plutonium, americium, and uranium separations have ... continued below

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17 p.

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Nunez, L. October 7, 1998.

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Description

Polymeric coated ferromagnetic carriers with an absorbed layer of octyl(phenyl)-N,N-diisobutylcarbamoylmethylphosphine oxide (CMPO) diluted by tributyl phosphate (TBP) are being evaluated for application in the separation and the recovery of low concentrations of americium, plutonium, and uranium from nuclear waste solutions. Due to their chemical nature, these extractants selectively complex americium and plutonium contaminants onto the particles and the complexed particles can be recovered from the solution using a magnet. Physical and chemical characterization of the extractant-absorbed particles were performed by gamma and liquid scintillation counting, scanning electron microscopic (SEM) micrograph, and other physical measurements. Plutonium, americium, and uranium separations have been performed at various HNO{sub 3} and HCl concentrations. Parameters were studied to determine the limitations and capacity of the process. The status of the chemistry and application of the process to Department of Energy (DOE) remediation efforts for actinide decontamination are discussed.

Physical Description

17 p.

Notes

INIS; OSTI as DE00010987

Medium: P; Size: 17 pages

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  • 2nd International Conference on the Scientific and Clinical Applications of Magnetic Carriers, Cleveland, OH (US), 05/28/1998--05/30/1998

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  • Report No.: ANL/CMT/CP-97378
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 10987
  • Archival Resource Key: ark:/67531/metadc621076

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Office of Scientific & Technical Information Technical Reports

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  • October 7, 1998

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  • June 16, 2015, 7:43 a.m.

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  • April 7, 2017, 3:44 p.m.

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Nunez, L. Transuranic separation using organophophorus extractants adsorbed onto superparamagnetic carriers., article, October 7, 1998; Illinois. (digital.library.unt.edu/ark:/67531/metadc621076/: accessed September 26, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.