pelletization - treatment of finely divided ore, concentrate or coal to from aggregates some 1-1,5 cm in diameter, for furnace feed, transport, storage or use (eg as coal briquettes). Powder, with suitable additives, is rolled into aggregates (green balls) in pelletizing drum and then hardened in a furnace by specialized baking methods, aastaist alates kasutatud metallurgiatoorainena.