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Refining

Aluminium does not naturally occur as a metal, but must be refined from bauxite in its oxide form commonly known as alumina.
 
Alcoa operates a three-refinery system in Western Australia – Kwinana, Pinjarra and Wagerup.
 
The Bayer refining process, used by alumina refineries worldwide to extract alumina from bauxite, involves four steps: digestion, clarification, precipitation and calcination.
 
Alumina is the feedstock for aluminium smelters. It is a white granular material, a little less coarse than table salt, and is technically called aluminium oxide.
 

  Clarification

  Flow Chart the Refining Process

  Flow Chart the Rehabilitation Process

  Simulated Bayer Process

  So What Do You Know About Refining Bauxite

  What Can You Do With Mud

  Who was Karl Bayer

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