A Study of Bubble Behavior and Anode Effect on the Graphite and Industrial Carbon Anode in a See-Through Furnace During Aluminium Electrolysis

Abstract Anode gas bubble behavior and anode effect on graphite industrial carbon rod-shaped in a cryolite melt have been studied using see-through furnace. The different materials properties which can affect electrochemical properties. Industrial is more inhomogeneous with respect to structure, pore, aggregates impurities comparison the graphite. More bubbles were nucleated than for same current density. time related coalescence process both anodes was found be interval 16 24 ms independent of densities. Bubbles detached from horizontal surface similar average diameter value densities < 1.0 A cm −2 , while > lower anode. onset occurred faster PFC-containing layer appeared thicker stable