Aluminium Fluoride

Aluminium Fluoride


Aluminium fluoride (AlF₃) is a white free-flowing powder, mainly used as an additive for the production of primary aluminium metal.

The addition of aluminum fluoride to the raw materials used in the aluminum smelting process reduces the temperature and improves the conductivity of the molten bath, reducing the electric power consumption.

Fluorsid produces high-density aluminium fluoride through the “dry process”, according to the following reactions:

1. dry acid grade fluorspar (CaF2) reacts with sulphuric acid (H2SO4) in externally heated rotary kilns, generating gaseous hydrogen fluoride (HF) and calcium sulphate (CaSO4);

2. the gaseous HF reacts with dry aluminium hydrate Al(OH)3 in fluidised bed reactors to produce high density aluminium fluoride.

Fluorsid has a total capacity of approx. 150,000 MT/y of aluminium fluoride, in two sites:

  • Cagliari, with 110,000 MT/y;
  • Odda, with 40,000 MT/y.

Aluminium fluoride is available in bulk (silo trucks or bulk vessels) or bagged in 1 MT big bags, 1.5 MT big bags, 15, 25 or 50 kg paper bags on pallets.






– BIG BAG – 1MT OR 1.5MT

– PAPER BAG – 15, 25 OR 50Kg 


To report directly to our registered office, please write to:

Area Industriale di Cagliari
2a Strada Macchiareddu
09032 Assemini (CA)

Please state on the envelope COMPLAINT / REPORT SA8000 or COMPLAINT / ANTI-CORRUPTION REPORT 37001 – Code of Ethics – MOGC 231 depending on the subject matter of the report

You can also use the following reporting channels provided by Fluorsid S.p.A

For SA8000 Reports

Via e-mail through the dedicated account:

Certification Body:

  • Bureau Veritas Italia Spa, divisione Certificazione –
    Responsabile CSR, viale Monza, 347 – 20126 Milano
    Fax +39 02 2552980 | E mail

Accreditation Body:

  • SAAS Social Accountability Accreditation Services, (SAAS): 9 East, 37th Street, 10th Floor – New York, NY 10016 | tel: (212) 391-2106 | e-mail:

For Anti-Corruption Reports 37001 / Code of Ethics / Model 231

  • per posta elettronica –
  • ordinary email – Area Industriale di Cagliari 2a Strada Macchiareddu 09032 Assemini (CA) – Italia – reserved for the attention of the Organismo di Vigilanza 
  • through the platform (, accessible to people both inside and outside the company.

Thanks to:

Ing. Michele Lavanga

tech contents

Angelo Castellaneta