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过程工程学报 2011
Penetration of Electrolyte Containing KF and LiF into Graphite Cathode during Aluminum Electrolysis
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Abstract:
The effects of KF and LiF contents in the melt electrolyte,current density and molecular ratio of NaF to AlF3 on the penetration into graphite cathode were investigated during aluminum electrolysis using NaF-AlF3-Al2O3-KF-LiF system in laboratory scale.Alkali metals including K,Na and Li penetrated into graphite cathode were detected.It was found that K and Na were converted into graphite intercalation compounds(GICs) as penetrating into cathode,and that Li reacted with C Li2C2 formed on the surface of cath...
