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Alumina Refining

We supply equipment for the Bayer process alumina refinery — autoclaves, digesters, precipitation tanks, calciners, and filtration systems for alumina production operations in the GCC.

Alumina Refining

Alumina refining converts bauxite ore into aluminium oxide (alumina) — the feedstock for primary aluminium smelting. EGA's Jebel Ali and Al Taweelah smelters rely on imported alumina, but the broader GCC and adjacent regions present opportunities for alumina processing investment. We supply the core equipment for Bayer process refineries.

What we supply

  • Autoclaves and digesters for bauxite digestion under pressure
  • Flash tanks and heat exchangers for liquor cooling
  • Precipitation tanks — seed and growth precipitators for gibbsite crystallisation
  • Vacuum drum filters and pressure filters for alumina hydrate separation
  • Calciners — rotary and fluidised bed for alumina dehydration
  • Red mud separation and storage equipment
  • Caustic soda storage and liquor evaporation systems
Alumina refining and processing equipment

How the project proceeds

  1. Review the bauxite feedstock composition and target alumina quality specification
  2. Define equipment requirements and source from specialist refinery equipment manufacturers
  3. Manage fabrication, inspection, and delivery to site
  4. Support pre-commissioning and start-up assistance

Why Infinity

Alumina refinery equipment operates in hot, highly caustic conditions — equipment materials, lining selection, and seal specification are critical. We source from manufacturers with demonstrated experience in Bayer process environments.

Calcination furnaces for alumina processing

Do you supply equipment for high-temperature digestion (high-temperature Bayer)?

Yes — autoclaves rated for both low-temperature and high-temperature Bayer processes are available from specialist manufacturers.

What materials of construction are used for caustic service?

Equipment in contact with hot caustic liquor is typically fabricated from carbon steel with protective lining or from duplex stainless steel, depending on operating conditions.

Can you supply red mud handling and storage systems?

Yes — red mud thickeners, pumps, and lined pond construction equipment are available.

Service Consultation

If you have any questions, get a consultation from our manager.


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