Composition and general characteristics of limestone: limestone calcination to more than 900 ℃ (generally 1000 ℃ ~ 1300 ℃) when decomposed into lime (CaO), emit CO2. Lime (CaO) FGD system is an important absorber. Limestone in metallurgy, building materials, chemical industry, light industry, construction, agriculture and other special industries are important industrial raw materials. With the strengthening of energy conservation, the limestone in the field of environmental protection will be more widely used. Desulfurization limestone powder sales. In recognition of the concept of lime, lime is used to reflect the physical nature of the content: the color of lime, crystal structure, organization, smell, porosity, bulk density, specific gravity, bulk density, melting point, boiling point, thermal conductivity, specific heat, light, resistance, hardness, expansion coefficient, refractive index, angle of repose and the like.