Magnesium, which is found in over 60 minerals, ranks as the eighth most abundant metal in the earth’s crust. Dolomite (CaMg(CO3)2) and magnesite (MgCO3) are currently the two most commercially attractive sources for magnesium production. The current dominant route for magnesium production is via the Pidgeon process, an energy-intensive pyrometallurgical route that produces high greenhouse gas emissions. In this process, the calcination of dolomite or magnesite concentrates takes place. In a high-temperature retort, silicon performs the reduction of the resulting magnesium oxide. Magnesium gas is recovered and then subsequently cooled to produce magnesium metal. Additionally, magnesium is also produced via the electrolysis of magnesium chloride from brine or seawater, since seawater is the second most abundant cation after sodium.

Magnesium is the third most commonly used structural metal, following iron and aluminium. It is used as an alloying element in die casting, steel desulphurisation and the production of titanium. It is extensively used in the aircraft and automotive industries due to its alloying properties, which produce super-strong, lightweight aluminium alloys.

Range of Magnesium Capabilities:

  • Metallurgical testplans
  • Project management
  • Metallurgical summary reports
  • Flowsheets
  • Mass balances
  • P&IDs
  • Vendor evaluation
  • Project implementation
  • Engineering studies
  • Environmental studies
  • Process description/Equipment lists
  • Detailed design

Please send through your enquiry today via email to and we will call you to discuss your project.

Magnesium Project Experience:

Crest MagnesiumConfidentialDue Diligence
BatchelorConfidentialScoping Study
CoalagyConfidentialTestwork to Recover Magnesium
SAMAGConfidentialProject Review for Finance

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Mineral Processing Course

We offer a course that gives participants in-depth knowledge of the broader aspects of mineral processing. A wide range of topics is covered and participants will gain an understanding of the fundamental unit processes, equipment and flowsheets as well as physical and chemical mineral processing principles. Read more about our course here.