Lime is an essential raw material in the alumina production process. It is used for silica removal, chemical leaching, hydrate filtration, red mud management and environmental control. Lime helps improve the efficiency and quality of alumina production while minimizing the environmental impact.
Market Needs
Lime is an essential raw material in the alumina production process. It is used for silica removal, chemical leaching, hydrate filtration, red mud management and environmental control. Lime helps improve the efficiency and quality of alumina production while minimizing the environmental impact.
Solution
Lime is required in many different stages of the alumina production process, with different types used for specific purposes. Quicklime (CaO) is primarily used for desilication and chemical filtration. Hydrated lime (Ca(OH)₂) is used for water treatment, while limestone (CaCO₃) aids in red mud management and environmental controls such as flue gas desulfurization. Each type of lime improves the efficiency, quality and sustainability of the alumina production process.
