METTALURGY

Caustis soda is used in the treatment of bauxite, from which alumina, the bases of aluminium is extracted.

Due to improvements in technology (in the automotive, packing and building industry sectors, etc.) Aluminium s now the second largest metal used in the world. This prodigious rise has led to a large increase in caustic soda consumption in this segment.

In the stage of surface treatment of aluminium finished products, caustic soda is used for pickling. Caustic soda also pays an important role in the recyling of tin recovered from tin plate.