Portovesme srl ROTATORY KILNS Production Home Production Waelz zinc line Market structure Waelz zinc line Rotatory kilns Washing plant Zinc line electrolytic plant Lead line - KSS Lead line - San Gavino Solvent extraction ROTATORY KILNS The two Waelz kilns treat EAFDust and residues from Portovesme plants. The process involves zinc reduction caused by the addition of carbons, creating the Waelz Oxide. The Waelz oxide is sent directly to the SX plant, or to the washing section if intended for the zinc electrolytic plant. ROTARY OVENS