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Title: Vitrified chemically bonded phosphate ceramics for immobilization of radioisotopes

Abstract

A method of immobilizing a radioisotope and vitrified chemically bonded phosphate ceramic (CBPC) articles formed by the method are described. The method comprises combining a radioisotope-containing material, MgO, a source of phosphate, and optionally, a reducing agent, in water at a temperature of less than 100.degree. C. to form a slurry; curing the slurry to form a solid intermediate CBPC article comprising the radioisotope therefrom; comminuting the intermediate CBPC article, mixing the comminuted material with glass frits, and heating the mixture at a temperature in the range of about 900 to about 1500.degree. C. to form a vitrified CBPC article comprising the radioisotope immobilized therein.

Inventors:
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1248483
Patent Number(s):
9,305,672
Application Number:
14/291,980
Assignee:
UCHICAGO ARGONNE, LLC (Chicago, IL)
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 May 30
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 36 MATERIALS SCIENCE

Citation Formats

Wagh, Arun S. Vitrified chemically bonded phosphate ceramics for immobilization of radioisotopes. United States: N. p., 2016. Web.
Wagh, Arun S. Vitrified chemically bonded phosphate ceramics for immobilization of radioisotopes. United States.
Wagh, Arun S. Tue . "Vitrified chemically bonded phosphate ceramics for immobilization of radioisotopes". United States. https://www.osti.gov/servlets/purl/1248483.
@article{osti_1248483,
title = {Vitrified chemically bonded phosphate ceramics for immobilization of radioisotopes},
author = {Wagh, Arun S.},
abstractNote = {A method of immobilizing a radioisotope and vitrified chemically bonded phosphate ceramic (CBPC) articles formed by the method are described. The method comprises combining a radioisotope-containing material, MgO, a source of phosphate, and optionally, a reducing agent, in water at a temperature of less than 100.degree. C. to form a slurry; curing the slurry to form a solid intermediate CBPC article comprising the radioisotope therefrom; comminuting the intermediate CBPC article, mixing the comminuted material with glass frits, and heating the mixture at a temperature in the range of about 900 to about 1500.degree. C. to form a vitrified CBPC article comprising the radioisotope immobilized therein.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {4}
}

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Works referenced in this record:

Low-temperature immobilization of actinides and other components of high-level waste in magnesium potassium phosphate matrices
journal, March 2009

  • Vinokurov, S. E.; Kulyako, Yu. M.; Slyuntchev, O. M.
  • Journal of Nuclear Materials, Vol. 385, Issue 1, p. 189-192
  • DOI: 10.1016/j.jnucmat.2008.09.053

Magnesium potassium phosphate ceramic for 99Tc immobilization
journal, February 2006