A Study of the Production of Soederberg Paste from Indian Raw Materials

CONTINUOUS self-baking electrodes of the Soederberg type are used in electrolytic extraction of metals such as aluminium and in electric smelting of pig iron and
certain Ferro -alloys. These electrodes are made of
carbon paste tamped in situ in hollow sheet metal colum-
ns that travel downward as the electrodes get consumed
in the furnace. The descending paste gets baked by heat
of the furnace and thereby becomes it fairly rigid and dense conductor when it contacts the electric bus-bars. Below this point there is virtually no difference
between this and prebaked amorphous carbon electrodes.