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Title: Method of separating short half-life radionuclides from a mixture of radionuclides

Abstract

The present invention is a method of removing an impurity of plutonium, lead or a combination thereof from a mixture of radionuclides that contains the impurity and at least one parent radionuclide. The method has the steps of (a) insuring that the mixture is a hydrochloric acid mixture; (b) oxidizing the acidic mixture and specifically oxidizing the impurity to its highest oxidation state; and (c) passing the oxidized mixture through a chloride form anion exchange column whereupon the oxidized impurity absorbs to the chloride form anion exchange column and the 22.sup.9 Th or 2.sup.27 Ac "cow" radionuclide passes through the chloride form anion exchange column. The plutonium is removed for the purpose of obtaining other alpha emitting radionuclides in a highly purified form suitable for medical therapy. In addition to plutonium; lead, iron, cobalt, copper, uranium, and other metallic cations that form chloride anionic complexes that may be present in the mixture; are removed from the mixture on the chloride form anion exchange column.

Inventors:
 [1];  [2]
  1. (Richland, WA)
  2. (West Richland, WA)
Publication Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA
OSTI Identifier:
872205
Patent Number(s):
US 5885465
Assignee:
Battelle Memorial Institute (Richland, WA) PNNL
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; separating; half-life; radionuclides; mixture; removing; impurity; plutonium; lead; combination; contains; parent; radionuclide; steps; insuring; hydrochloric; acid; oxidizing; acidic; specifically; oxidation; passing; oxidized; chloride; form; anion; exchange; column; whereupon; absorbs; 22; 27; cow; passes; removed; purpose; obtaining; alpha; emitting; highly; purified; suitable; medical; therapy; addition; iron; cobalt; copper; uranium; metallic; cations; anionic; complexes; chloride form; exchange column; hydrochloric acid; anion exchange; medical therapy; acid mixture; half-life radionuclides; form suitable; emitting radionuclide; metallic cation; anionic complex; alpha emitting; /210/376/423/

Citation Formats

Bray, Lane A., and Ryan, Jack L. Method of separating short half-life radionuclides from a mixture of radionuclides. United States: N. p., 1999. Web.
Bray, Lane A., & Ryan, Jack L. Method of separating short half-life radionuclides from a mixture of radionuclides. United States.
Bray, Lane A., and Ryan, Jack L. Fri . "Method of separating short half-life radionuclides from a mixture of radionuclides". United States. https://www.osti.gov/servlets/purl/872205.
@article{osti_872205,
title = {Method of separating short half-life radionuclides from a mixture of radionuclides},
author = {Bray, Lane A. and Ryan, Jack L.},
abstractNote = {The present invention is a method of removing an impurity of plutonium, lead or a combination thereof from a mixture of radionuclides that contains the impurity and at least one parent radionuclide. The method has the steps of (a) insuring that the mixture is a hydrochloric acid mixture; (b) oxidizing the acidic mixture and specifically oxidizing the impurity to its highest oxidation state; and (c) passing the oxidized mixture through a chloride form anion exchange column whereupon the oxidized impurity absorbs to the chloride form anion exchange column and the 22.sup.9 Th or 2.sup.27 Ac "cow" radionuclide passes through the chloride form anion exchange column. The plutonium is removed for the purpose of obtaining other alpha emitting radionuclides in a highly purified form suitable for medical therapy. In addition to plutonium; lead, iron, cobalt, copper, uranium, and other metallic cations that form chloride anionic complexes that may be present in the mixture; are removed from the mixture on the chloride form anion exchange column.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1999},
month = {Fri Jan 01 00:00:00 EST 1999}
}

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