A particle comprising composite oxide of calcium and magnesium and composite carbide of thereof, manufacture method of the particle；and additive for protecting furnace wall comprising the particle

摘要

The present invention is a core portion containing a complex oxide of calcium and magnesium (CaO MgO); And a surface layer containing a composite carbon dioxide (CaCO ₃ · MgCO ₃ ) of calcium and magnesium, a method for preparing the particle, and an additive for protecting a furnace wall including the particle, and more specifically, a composite oxide of calcium and magnesium. It relates to a particle (ex. Light dolomite) in contact with carbon dioxide to form a composite carbon and calcium on the surface of the particle, a method for producing the particle and an additive for protecting the wall, including the particle. In the present invention, the surface of a substance containing a complex oxide of calcium and magnesium (e.g., light dolomite) can be carbonated, thereby suppressing hydration and preventing the strength of the substance from lowering.;Calcium, Magnesium, Composite Oxide, Composite Carbon, Minor Dolomite, Forming, Binder, Carbon Dioxide, Carbonation, Hydration