| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Ceramics for a New Generation of Nuclear Energy Systems and Applications
|
| Presentation Title |
Synthesis and Characterization of Super Occluded LiCl-KCl in Zeolite-4A as a Chloride Salt Waste Form Intermediate |
| Author(s) |
Allison Mae Harward, Krista Carlson, Tae-Sic Yoo, Guy Frederickson, Mike Patterson, Michael Simpson |
| On-Site Speaker (Planned) |
Allison Mae Harward |
| Abstract Scope |
Electrorefiners are currently operating at Idaho National Laboratory, processing irradiated driver and blanket assemblies from Experimental Breeder Reactor-II in a molten salt consisting of eutectic LiCl-KCl with NaCl, UCl3, PuCl3, and numerous fission product chlorides. Methods are being investigated to condition this salt for interim storage. If untreated, the salt is deliquescent, so a means of mitigating moisture uptake and corrosion of metallic canisters may be needed. Results of experiments in which LiCl-KCl was occluded zeolite-4A up to 75 wt% will be presented. The zeolite is very effective at reducing uptake of water and minimizing potential corrosion of canisters in a controlled, humid environment because the free, unoccluded salt is primarily NaCl, which forms from the Na+ ions present in the zeolite framework ion exchanging with occluded LiCl-KCl. |