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Title: Process for separation and preconcentration of radium from water

Abstract

A process for preconcentrating and separating radium from a contaminated solution containing at least water and radium includes the steps of adding a quantity of a water-soluble macrocyclic polyether to the contaminated solution to form a combined solution. An acid is added to the combined solution to form an acidic combined solution having an ›H.sup.+ ! concentration of about 0.5M. The acidic combined solution is contacted with a sulfonic acid-based strong acid cation exchange medium or a organophilic sulfonic acid medium having a plurality of binding sites thereon to bind the radium thereto and to form a radium-depleted solution. The radium-depleted solution is separated from the strong acid cation exchange medium or organophilic sulfonic acid medium. The radium remaining bound to the exchange medium or organophilic reagent is then stripped from the exchange medium or organophilic medium and the activity of the radium is measured.

Inventors:
 [1];  [2];  [1];  [3]
  1. Elmhurst, IL
  2. Naperville, IL
  3. Lubbock, TX
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
OSTI Identifier:
872115
Patent Number(s):
5863439
Assignee:
Arch Development Corporation (Chicago, IL)
Patent Classifications (CPCs):
G - PHYSICS G21 - NUCLEAR PHYSICS G21F - PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
process; separation; preconcentration; radium; water; preconcentrating; separating; contaminated; solution; containing; steps; adding; quantity; water-soluble; macrocyclic; polyether; form; combined; acid; added; acidic; h; concentration; 5m; contacted; sulfonic; acid-based; strong; cation; exchange; medium; organophilic; plurality; binding; sites; thereon; bind; thereto; radium-depleted; separated; remaining; bound; reagent; stripped; activity; measured; strong acid; combined solution; sulfonic acid; binding site; cation exchange; solution containing; exchange medium; acid cation; binding sites; macrocyclic polyether; sites thereon; combined sol; contaminated solution; /210/423/976/

Citation Formats

Dietz, Mark, Horwitz, E Philip, Chiarizia, Renato, and Bartsch, Richard A. Process for separation and preconcentration of radium from water. United States: N. p., 1999. Web.
Dietz, Mark, Horwitz, E Philip, Chiarizia, Renato, & Bartsch, Richard A. Process for separation and preconcentration of radium from water. United States.
Dietz, Mark, Horwitz, E Philip, Chiarizia, Renato, and Bartsch, Richard A. Fri . "Process for separation and preconcentration of radium from water". United States. https://www.osti.gov/servlets/purl/872115.
@article{osti_872115,
title = {Process for separation and preconcentration of radium from water},
author = {Dietz, Mark and Horwitz, E Philip and Chiarizia, Renato and Bartsch, Richard A},
abstractNote = {A process for preconcentrating and separating radium from a contaminated solution containing at least water and radium includes the steps of adding a quantity of a water-soluble macrocyclic polyether to the contaminated solution to form a combined solution. An acid is added to the combined solution to form an acidic combined solution having an ›H.sup.+ ! concentration of about 0.5M. The acidic combined solution is contacted with a sulfonic acid-based strong acid cation exchange medium or a organophilic sulfonic acid medium having a plurality of binding sites thereon to bind the radium thereto and to form a radium-depleted solution. The radium-depleted solution is separated from the strong acid cation exchange medium or organophilic sulfonic acid medium. The radium remaining bound to the exchange medium or organophilic reagent is then stripped from the exchange medium or organophilic medium and the activity of the radium is measured.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}

Patent:

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Works referenced in this record:

Separation and preconcentration of actinides from acidic media by extraction chromatography
journal, September 1993


Radium removal from aqueous solutions by variously supported ligands
journal, March 1992


Notes inédites
journal, July 1993


Determination of radium isotope ratios and abundances in geological samples by thermal ionization mass spectrometry
journal, May 1991