Chemical lime

Chemical limestone is primarily used as a raw material for producing calcium carbide and soda ash. The acetylene gas generated from the reaction of calcium carbide with water is an essential basic raw material for synthetic fibers, synthetic rubber, and plastics, and it is also used for cutting and welding metals. Chemical limestone generally occurs in dense blocky forms, with colors often being gray-white, light gray, gray, dark gray, as well as light yellow and light red. Pure limestone appears bluish-gray, with a light gray fracture surface.

Properties: Limestone generally occurs in dense massive forms, with colors often being off-white, light gray, gray, dark gray, as well as light yellow and light red. Pure limestone appears bluish-gray, with a light gray fracture surface.

Solubility: Soluble in water containing carbon dioxide, and effervesces violently when exposed to dilute acids.

Usage: Chemical limestone is primarily used as a raw material for producing calcium carbide and soda ash. The acetylene gas generated from the reaction of calcium carbide with water is a crucial basic raw material for synthetic fibers, synthetic rubber, and plastics, and is also used for cutting and welding metals. Soda ash is another important industrial raw material, widely applied in industries such as glass, chemicals, textiles, printing and dyeing, petroleum, metallurgy, light industry, and food processing.

Preparation or Source: Generally, open-pit mining is adopted, with electric shovels, trucks, and belt conveyors used for transportation. The beneficiation process employs crushing and screening methods.

Note: Limestone is classified into chemical limestone, cement limestone, and flux limestone based on its industrial用途 and ore quality requirements. Limestone is a carbonate rock ore, primarily composed of the mineral calcite, with small amounts of dolomite, clay minerals, and chert. Calcite belongs to the trigonal crystal system, and its crystals often appear as scalenohedra and rhombohedra.