Hamsavahin Aarth Mines

BAUXITE

BAUXITE

BAUXITE

Primary Source of Alumina

Bauxite is the primary source of aluminum and essential for high-temperature industrial applications like refractory materials—critical for aluminum production, furnace linings, and other heat-resistant processes.

TYPES OF BAUXITE

Gibbsite Bauxite

High alumina, easy to process

Most common for aluminum production due to higher Al(OH)3 content and simpler refining.

Boehmite Bauxite

Needs higher processing temperature

Alumina in a more complex form; widely used where refineries support higher calcination temps.

Diaspore Bauxite

Heat-resistant & harder to process

Preferred in regions with specific high-temp refining capabilities; high Al contents.

Tropical Bauxite

Lateritic deposits

Formed in tropical climates; known for high aluminum content and commonly refined for alumina.

Karst Bauxite

Limestone-hosted, higher silica

More challenging to refine but still valuable for aluminum production with proper beneficiation.

Bauxite ore close-up Bauxite texture

USES OF BAUXITE

Aluminum Production

Primary source of alumina refined to aluminum for transport, packaging, and construction.

Refractory Materials

Used in furnaces, kilns, and reactors for lining and insulation due to high heat resistance.

Abrasives

For grinding wheels, sandpapers, and cutting tools.

Cement Manufacturing

Additive to improve strength, durability, and heat resistance.

Chemical Industry

Feedstock for alumina-based chemicals used in water treatment, catalysts, and more.

GRADES OF BAUXITE

Metallurgical Grade

≈45–60% alumina; used for aluminum production across construction, transportation, and packaging.

Refractory Grade

High alumina (~80–90%); for heat-resistant products including furnaces, kilns, and reactors.

Abrasive Grade

≈50–60% alumina; for grinding wheels and sandpapers.

Chemical Grade

≈55–70% alumina; for alumina-based chemicals (e.g., water treatment, catalysts).

Cement Grade

Typically 30–45% alumina; used as raw material in cement for strength and durability.

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