Side lining of aluminum electrolyzer from silicon carbide
- Student G.V. Plekhanov Saint Petersburg State Mining Institute
Abstract
It’s offering replacement coal blocks of side potlining of electrolysis bath on silicon carbide slabs. Expediently to use silicon carbide blocks because they have the advantage of coal blocks: higher oxidation stability, higher real resistance, higher physical strength. Using these advantages in electrolysis baths renders possible: to reduce oxygen demand of side potlining surface; raise incorrodibility of side blocks on interracial metal-electrolytic conductor; to reduce saturation degree side blocks by fluorides from electrolytic conductor; to reduce current drain through the side potlining; to control skull degree growing superiorly. The result is following: increasing durability of electrolytic furnace without pot relining from 48 until 72 months.