FACING OF CATHODE CASING OF ALUMINIUM CELL

FIELD: equipment for aluminium production. SUBSTANCE: facing includes carbon blocks, heat insulation, refractory layers and upper protective layer of mixed alumina and aluminium fluoride or fresh cryolite taken in relation 2:(0.75-0.9). Lower protective layer is in the form of two steel sheets laid...

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Bibliographic Details
Main Authors NIKIFOROV V.V, GAVRILOV L.A, KONONOV M.P, LIPINSKIJ L.P, BOGOMOLOV A.N
Format Patent
LanguageEnglish
Published 10.06.1999
Edition6
Subjects
APPARATUS THEREFOR
CHEMISTRY
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
METALLURGY
PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY ORREFINING OF METALS
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Summary:FIELD: equipment for aluminium production. SUBSTANCE: facing includes carbon blocks, heat insulation, refractory layers and upper protective layer of mixed alumina and aluminium fluoride or fresh cryolite taken in relation 2:(0.75-0.9). Lower protective layer is in the form of two steel sheets laid one over another with gap equal to 1-3 mm and filled with alumina or it is ceramic material layer. Refractory material layer is placed between lower and upper protective layers. Red brick is used as ceramic material. Facing prevents fluoride penetration into heat insulation layer. EFFECT: increased service life period of facing, enhanced operational parameters of cell. 5 cl, 2 dwg
Bibliography:Application Number: RU19980104185