Experimental studies of processing conditions for liquid lithium and solid lithium alloy fusion blankets
A 50-gallon-capacity liquid lithium loop (Lithium Processing Test Loop, LPTL) has been constructed and brought into operation at the Argonne National Laboratory. This system contains experimental assemblies to study (a) lithium processing technology based on molten salt extraction, cold trapping, and getting trapping and (b) on-line hydrogen monitoring. An efficient electrolytic method, employing a porous sparged electrode, has been developed to recover hydrogen isotopes from the types of molten salts (e.g., LiF-LiCl-LiBr) selected for use in the salt-processing system on the LPTL. This method, when tested under realistic conditions, has demonstrated the potential for recovering tritium (from lithium) at the sub-wppm level. Results of cold-trap tests on the LPTL and of getter-trap tests on both the LPTL and a much smaller lithium loop have provided some evidence that these types of processing methods can be used to control oxygen and nitrogen levels in lithium. Studies of the hydridation of solid Li-Al and Li-Pb alloys have provided data on activity coefficients and phase boundary locations for these binary systems as functions of temperature and composition. The Sieverts' constants for dilute hydrogen solutions in LiAl (in wppm/Torr/sup 1/2/) were found to be 10/sup 3/ to 10/sup 4/ times smaller than those for hydrogen in pure lithium at the same temperature.
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 6729239
- Report Number(s):
- CONF-780508-40
- Resource Relation:
- Conference: 3. meeting on the technology of controlled thermonuclear fusion, Santa Fe, NM, USA, 9 May 1978
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALUMINIUM ALLOYS
HYDRIDATION
BREEDING BLANKETS
SEPARATION PROCESSES
LITHIUM
PROCESSING
LITHIUM ALLOYS
ELECTRODES
GETTERS
HYDROGEN
LITHIUM BROMIDES
LITHIUM CHLORIDES
LITHIUM FLUORIDES
MOLTEN SALTS
MONITORING
TRAPPING
ALKALI METAL COMPOUNDS
ALKALI METALS
ALLOYS
BROMIDES
BROMINE COMPOUNDS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
CRYOGENIC FLUIDS
ELEMENTS
FLUIDS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
LITHIUM COMPOUNDS
LITHIUM HALIDES
METALS
NONMETALS
REACTOR COMPONENTS
SALTS
700201* - Fusion Power Plant Technology- Blanket Engineering