About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
Real Time Process Monitoring of Hydrochlorination of LiCl-KCl and NaCl-KCl-MgCl<sub>2</sub> to Reduce for Oxide and Hydroxide Contamination |
| Author(s) |
Mary K. Cernyar, Jacob Yankey, Collin Anderson, Michael Simpson |
| On-Site Speaker (Planned) |
Mary K. Cernyar |
| Abstract Scope |
Molten chloride mixtures were treated via sparging HCl diluted in argon to reduce concentrations of oxide and hydroxide impurities. Two eutectic mixtures, LiCl-KCl (58:42 mol%) and NaCl-KCl-MgCl<sub>2</sub> (33:21.6:45.4 mol%), were processed at 375 and 450˚C, respectively. Salts were loaded into a sealed quartz vessel and heated in alumina crucibles. Salts were sparged with HCl (5 vol%)/Ar at 20 ccm for varying lengths of time followed by Ar sparging to flush out the residual HCl. Reaction was monitored by bubbling the effluent gas into an auto-titrator in pH-stat mode. Oxide/hydroxide content in the salts was measured before and after treatment via inert gas fusion (IGF) and acid titration. Time to purify the salts will be reported based on pH-stat titration plots, and final salt purity results will be reported based on IGF and sample titration. Treatment of LiCl-KCl results in lower than detection limit oxygen after about one hour of treatment. |
| Proceedings Inclusion? |
Planned: |