1.
Tons of bauxite
are delivered every day to the CBA plant in the city of Alumínio (SP), from our own mines and those of our partners.
Production Process
We transform raw materials into the aluminium that preserves, transports and brings quality into your life.
How is aluminium transformed into the products that make your life easier?
We go beyond just mining bauxite and making aluminium.
We build lasting partnerships to create the solutions that are all around you. We invest in technology, in innovation and in our people, to ensure a growing and sustainable production process.
2.
We grind the bauxite
and mix it with other elements to produce a thick, doughy paste.
3.
This bauxite paste is mixed
with caustic soda at a temperature of 150ºC and then goes through the stages of decanting, filtering, precipitation and roasting to produce aluminium oxide (also known as alumina).
4.
The alumina is placed in ovens and subjected to electric currents, and
transformed into liquid aluminium.
5.
The liquid aluminium is taken to the foundry where it resolidifies,
giving us primary aluminium.
6.
The primary aluminium is molded and takes different forms:
ingots, billets, plates and rebars.
7.
The primary products are processed to produce different shapes such as
sheets, coils, foil and extruded profiles.
8.
Distributed throughout the country
the processed products are used in several applications, such as packaging, windows, domestic appliances and parts for buses and cars.