I. Aluminum Smelting (Largest Application, Accounting for Over 90%)

Uses: Production of metallic aluminum

Alumina is reduced to aluminum via electrolysis (Hall-Héroult process).

Downstream Applications:

Building profiles

Transportation (Automobiles, Aircraft)

Packaging (Aluminum cans)

Power cables

II. Refractory Materials Industry (An Important Deep Processing Direction for Industrial Alumina)

Especially calcined alumina and tabular alumina. Alumina

Main Applications:

High-temperature furnace linings in steel plants

Rotary kilns in cement plants

Glass kilns

Petrochemical cracking units

III. Ceramic Industry

Electronic ceramics

Structural ceramics

Sanitary ware ceramics

Tiles

Alumina is used as:

Reinforcing material

Improving hardness

Improving wear resistance

Improving insulation performance

IV. Abrasive Industry

Grinding wheels

Polishing materials

Sandblasting materials

Industrial alumina (especially calcined alumina) is commonly used in:

White fused alumina

Brown fused alumina

Polishing powder

V. Chemical Industry and Catalyst Support

Alumina can be used as:

Catalyst support

Desiccant

Adsorbent

Application areas:

Petroleum refining

Natural gas processing

Fertilizer industry

VI. Electronic Materials (High Value-Added Direction)

For high-purity alumina (HPA):

LED substrates

Lithium-ion battery separator coatings

Sapphire crystals