skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Ceramic waste form process for immobilizing iodine in glass-bonded iodosodalite

Abstract

A modified glass-bonded sodalite ceramic waste (CWF) form approach was used to fabricate ACWF-NaI or ACWF-AgI iodosodalite [i.e., Na8(AlSiO4)6I2] waste forms by occluding either NaI or AgI, respectively, into zeolite 4A at elevated temperatures, adding an NBS-4 glass binder, and firing at 925°C. The phase purity of ACWF-NaI was 82.6 mass% Na8(AlSiO4)6I2 (with amorphous remainder) while the ACWF-AgI only had 25.9 mass% Na8(AlSiO4)6I2, despite the iodine being added as AgI; the remainder phases for ACWF-AgI included NaAlSiO4 (15.1 mass%), AgI (4.5 mass%), and Ag0 (0.2 mass%). This study shows that, starting from two different iodine salts, that the CWF process could be used for immobilization.

Authors:
ORCiD logo [1];  [1];  [1];  [2]
  1. BATTELLE (PACIFIC NW LAB)
  2. Idaho National Laboratory
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1562675
Report Number(s):
PNNL-SA-145969
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
sodalite, iodosodalite, ceramic waste form

Citation Formats

Riley, Brian J., Peterson, Jacob A., Canfield, Nathan L., and Frank, Steven M. Ceramic waste form process for immobilizing iodine in glass-bonded iodosodalite. United States: N. p., 2019. Web. doi:10.2172/1562675.
Riley, Brian J., Peterson, Jacob A., Canfield, Nathan L., & Frank, Steven M. Ceramic waste form process for immobilizing iodine in glass-bonded iodosodalite. United States. doi:10.2172/1562675.
Riley, Brian J., Peterson, Jacob A., Canfield, Nathan L., and Frank, Steven M. Thu . "Ceramic waste form process for immobilizing iodine in glass-bonded iodosodalite". United States. doi:10.2172/1562675. https://www.osti.gov/servlets/purl/1562675.
@article{osti_1562675,
title = {Ceramic waste form process for immobilizing iodine in glass-bonded iodosodalite},
author = {Riley, Brian J. and Peterson, Jacob A. and Canfield, Nathan L. and Frank, Steven M.},
abstractNote = {A modified glass-bonded sodalite ceramic waste (CWF) form approach was used to fabricate ACWF-NaI or ACWF-AgI iodosodalite [i.e., Na8(AlSiO4)6I2] waste forms by occluding either NaI or AgI, respectively, into zeolite 4A at elevated temperatures, adding an NBS-4 glass binder, and firing at 925°C. The phase purity of ACWF-NaI was 82.6 mass% Na8(AlSiO4)6I2 (with amorphous remainder) while the ACWF-AgI only had 25.9 mass% Na8(AlSiO4)6I2, despite the iodine being added as AgI; the remainder phases for ACWF-AgI included NaAlSiO4 (15.1 mass%), AgI (4.5 mass%), and Ag0 (0.2 mass%). This study shows that, starting from two different iodine salts, that the CWF process could be used for immobilization.},
doi = {10.2172/1562675},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {9}
}