Optimizing your aluminium making process

Today's aluminium is produced via two main methods:, primary aluminium production from ore or recycling aluminium from processing scrap and used aluminium products.
To fulfil the need of the customer, Heraeus Electro-Nite offers solutions specific for the Primary Aluminium process.

The process of an integrated primary aluminium production consists of bauxite mining, alumina production and reduction of alumina into liquid aluminium via electrolysis.

Find out which solutions are applicable for your process and how they can help you to optimize your Primary Aluminium process.

Challenges on the electrolytic reduction process

The electrolytic reduction is the final step in the primary aluminium production process. This step takes place in the reduction plants or smelters.



Here, pure aluminium is extracted from alumina by the Hall-Héroult process. Alumina is poured into electrolytic cells with a molten cryolite bath which operate at around 950 degrees Celsius. Under a high intensity of electrical current the bond between the aluminium and the oxygen atoms is forced to break, resulting in liquid aluminium dropping down to the bottom of the electrolytic cell.

A stable cell operation is key to a cost efficient reduction operation.

Maintain a more cost efficient operation in the reduction process by making use of our solutions:

  • Control of material and thermal balance through online bath analysis
  • Monitoring the cathode condition through cathode voltage drop control