Light burnt magnesia powder is an important refractory material

Light-burned magnesia powder is an important refractory material Light-burned magnesia powder is a material with medium alkalinity and chemical activity, which is used in other industrial fields besides refractory material and cementitious material. In addition, the development of converter slag splash protection technology has further expanded the application scale of light-burned magnesia powder. At present, the slag splashing protection technology is mostly used after light-burning magnesia powder into balls, including light-burning magnesia powder balls, light-burning magnesia, carbon-containing light-burning magnesia pellets and carbon-containing calcium-containing light-burning magnesia powder ball etc. Light-burned magnesia powder, referred to as light-burned magnesia powder, is a kind of active magnesia obtained by calcining magnesite, brucite and magnesium hydroxide extracted from seawater or brine at about 800~1000℃. The light-burned magnesium powder is light yellow and light brown powder, the particle size is mostly below 100 mesh, the periclase crystal is very small, and the density of the light-burned magnesium ball is prepared by adding 80% light-burned magnesium powder to 2O water, put it in Enter the mixing mill for rolling, stirring, and mixing for 15-20 minutes to form the mixture, and then send it to the briquetting machine through the belt conveyor to prepare the product, and then stack it. The finished light-burned magnesium balls are ready for sale after drying in the shade for 48 hours and forming strength.

Recently, through inquiries of users who produce fireproof boards, many customers do not pay attention to the content of light-burned magnesium powder and the activity of magnesium oxide in order to reduce production costs when making fireproof board products, thinking that any content of magnesium oxide can be used, especially in summer. If you do not pay attention to the magnesium oxide content every day, it will directly cause the product to coagulate slowly, and the manufactured product has no tensile strength and no patience. It is hoped that the broad fire board users can use high content and high activity light-burning magnesia powder in summer to remove objective problems such as the lack of hardness of the product. 

Because magnesium can react with N? and O?, when magnesium burns in the air, it burns violently and emits a dazzling white light, exothermic, and a white solid is formed. The change in vinegar is that bubbles emerge quickly, float on the surface of the vinegar liquid, and gradually disappear. Some fireworks and flares contain magnesium powder, which takes advantage of the properties of magnesium that burns in the air to emit a dazzling white light. Metal magnesium can react with most non-metals and acids; it can directly synthesize magnesium hydride with hydrogen under high pressure; magnesium can react with halogenated hydrocarbons to synthesize Grignard reagents, which are widely used in organic synthesis. Magnesium has a clear tendency to form coordination compounds.