发表时间:2021-11-29
Purpose of light burned magnesium powder:
Light burned magnesium is widely used in building materials, chemical industry, metallurgy, medicine and other fields. It is an ideal material for the production of fireproof board, light partition board, magnesium sulfate, papermaking, sulfur removal process, furnace protection and slag splashing in steel mills
。
Preparation of light burned magnesium powder:
Magnesite, brucite and magnesium hydroxide extracted from seawater or brine are calcined at about 800 ~ 1000 ℃ to decompose and discharge CO2 or H2O to obtain light burned magnesium powder, also known as light burned magnesium oxide, caustic magnesium oxide or light burned magnesium, commonly known as bitter earth powder. Light burned magnesia powder has loose texture and high chemical activity. It can not only be used to manufacture magnesium cement, magnesite building materials and thermal insulation materials, but also the intermediate product of producing high-quality magnesia by two-step calcination method.