Electrochemical Extraction of Hydrogen from Molten LiF-LiCI-LiBr and Its Application to Liquid-Lithium Fusion Reactor Blanket Processing
| Autor: | W. F. Calaway |
|---|---|
| Rok vydání: | 1978 |
| Předmět: |
Nuclear and High Energy Physics
Materials science Argon Standard hydrogen electrode Hydrogen Hydride 020209 energy Inorganic chemistry chemistry.chemical_element 02 engineering and technology Condensed Matter Physics Alkali metal Corrosion 020303 mechanical engineering & transports 0203 mechanical engineering Nuclear Energy and Engineering chemistry Getter 0202 electrical engineering electronic engineering information engineering Molten salt |
| Zdroj: | Nuclear Technology. 39:63-74 |
| ISSN: | 1943-7471 0029-5450 |
| DOI: | 10.13182/nt78-a17008 |
| Popis: | The electrochemical evolution of hydrogen from a molten solution of LiF--LiCl--LiBr containing small quantities of LiH and saturated with metallic lithium was demonstrated. The evolved hydrogen is recovered from the melt by sweeping the hydrogen electrode with a circulating stream of argon and subsequently trapping the hydrogen from the argon with a hot titanium getter bed. It is found that by continually gettering the argon, 100 +- 2% of the hydride present in the molten salt, at a concentration of 1 wppM, is recoverable. Results of metallographic examinations of stainless-steel components in contact with the salt solution during the experiments indicate some evidence of surface attack (10 to 15 ..mu..m) and intergranular penetration (30 to 50 ..mu..m), but extrapolated corrosion rates are generally small (approx. 0.2 mm/yr). These results incorporated into a reevaluation of the molten-salt extraction process, as it applied to tritium recovery from a liquid-lithium fusion reactor blanket, indicate a more favorable processing capability than was previously expected. |
| Databáze: | OpenAIRE |
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