Classification, separation and milling of scrap, to ensure that the metal fragments are separated from other components.

Milling and reaction of salt slag, to separate the various oxide components.

Crushing of scrap: the aim of this treatment is to extract aluminium metal. This metal is obtained from the aluminium scrap delivered.

Crushing of slag: the slags which obtained as a result of the furnace melting, are crushed to recover the aluminium concentrates. They are processed in the salt slag facilities following process 1, detailed previously.