Carbon-containing components of aluminium production cells
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United States of America Patent
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Aug 19, 2003
Issued Date -
N/A
app pub date -
Jul 25, 2001
filing date -
Apr 1, 1992
priority date (Note) -
Expired
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Abstract
Carbon-containing components of cells for the production of aluminium by the electrolysis of alumina dissolved in a cryolite-based molten electrolyte are protected from attack by liquid and/or gaseous components of the electrolyte in the form of elements, ions or compounds, by a refractory boride coating applied from a slurry composed of pre-formed particulate refractory boride in a colloidal carrier which is dried and heated to consolidate the coating.
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