Zinc ore is classified as sulfide ore and oxidized ore depending on its mineral content. Due to the depletion of sulfide ore, the development of oxidized zinc ore has attracted people's attention.

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The main component of limestone is calcium carbonate (CaCO3). Lime and limestone are widely used in building materials and industrial raw materials.

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Fly ash is the core raw material of lime ball mill. Lime is also one of the main raw materials for aerated concrete production.

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