Volatility literature of chlorine, iodine, cesium, strontium, technetium, and rhenium; technetium and rhenium volatility testing

Technical Report · Fri Mar 01 04:00:00 EST 1996

DOI:https://doi.org/10.2172/211388· OSTI ID:211388

Langowski, M H; Darab, J G; Smith, P A

A literature review pertaining to the volatilization of Sr, Cs, Tc (and its surrogate Re), Cl, I and other related species during the vitrification of Hanford Low Level Waste (LLW) streams has been performed and the relevant information summarized. For many of these species, the chemistry which occurs in solution prior to the waste stream entering the melter is important in dictating their loss at higher temperatures. In addition, the interactive effects between the species being lost was found to be important. A review of the chemistries of Tc and Re was also performed. It was suggested that Re would indeed act as an excellent surrogate for Tc in non-radioactive materials testing. Experimental results on Tc and Re loss from sodium aluminoborosilicate melts of temperatures ranging from 900--1350{degrees}C performed at PNL are reported and confirm that Re behaves in a nearly identical manner to that of technetium.

• Research Organization: Pacific Northwest Lab., Richland, WA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 211388
• Report Number(s): PNNL--11052; PVTD--C95-02-03G; ON: DE96008860
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
40 CHEMISTRY
BOROSILICATE GLASS
CESIUM
CHLORINE
IODINE
LOW-LEVEL RADIOACTIVE WASTES
RADIOCHEMISTRY
RHENIUM
STABILITY
STRONTIUM
TECHNETIUM
VITRIFICATION
VOLATILITY