Calcination of magnesite, brucite and magnesium hydroxide extracted from seawater or brine at about 800-1000 C to decompose and discharge CO2 or hydrogen peroxide yields Caustic calcined magnesia, also known as light-burned magnesia, caustic magnesia or light-burned magnesia, commonly known as bitter soil powder. Light-burned magnesia powder has loose texture and high chemical activity. It can be used not only in the manufacture of magnesia cement, MAGNESITE Building materials, thermal insulation materials, etc., but also as an intermediate product in the production of high-quality magnesia by two-step calcination method.
