| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
Fluoride Salt Purification Using Bifluoride Salt for Hydrogen Fluoride-generation |
| Author(s) |
Ronald Laehn, Dakotah Martinez, Aaron Robison |
| On-Site Speaker (Planned) |
Ronald Laehn |
| Abstract Scope |
Fluoride salts are substantially less corrosive to structural materials if contaminants such as water and oxides are removed. Hydrofluorination, in which the molten fluoride salt is sparged with a combination of hydrogen and hydrogen fluoride, is the most effective process for removing oxides and water from the salt. Anhydrous hydrogen fluoride presents a unique challenge due to its corrosivity and toxicity, and the cost associated with safely storing and using this chemical presents a challenge for hydrofluorination implementation. This work will describe an alternative method for the on-demand production of hydrogen fluoride from the controlled thermal degradation of bifluoride salt. Storage of anhydrous hydrogen fluoride cylinders is not required with this approach and hydrogen fluoride is only present during the hydrofluorination process making this strategy a more accessible route to hydrofluorination. The efficacy of this approach will be described through chemical analysis of the fluoride salt both pre- and post-purification. |
| Proceedings Inclusion? |
Planned: |