Question

what is the role of graphite rod in electrometallurgy of aluminium?

Answer 1

In the electrometallurgy of aluminium, a fused mixture of purified alumina (Al2O3), cryolite (Na3AlF6) and fluorspar (CaF2) is electrolysed. In this electrolysis, graphite is used as the anode and graphite-lined iron is used as the cathode. ... If a metal is used instead of graphite as the anode, then O2 will be liberated.

Answer 2

In the synthesis of aluminium from electrometallurgically, graphite rod is used as an anode and graphite made line iron is used as cathode. During the electrolysis process, aluminium is liberated at the cathode and oxygen at the anode.