Alumina

Aluminium oxide (Al₂O₃), a white crystalline powder produced by refining bauxite ore through the Bayer process. Alumina is the primary feedstock for aluminium metal production through electrolytic smelting. It is also used in refractory materials, abrasives, ceramics, and chemical applications. Alumina quality is defined by purity, particle size distribution, and alpha-alumina content, all of which affect smelting efficiency and metal quality.