Bayer process

The Bayer process is often referred to as the “red side”. It is composed of a series of process steps that affect the properties of the residue produced. The red side starts with bauxite and finishes with bauxite residue and generally includes the steps of bauxite milling, pre-desilication, digestion, colling, clarification, and washing. A schematic of these basic steps is shown in the photo.