The calcination of magnesite at a high temperature of 750 to 1100 is called "light calcination", and the resulting product is called Light burned magnesium powder It is called light calcined powder for short. The main uses of light calcined powder are as building materials for heat insulation and sound insulation, as well as for making cementitious materials. It can also be used as raw materials for making ceramics.
Since the tank body of the light burned powder biogas tank will be exposed to water for a long time, the requirements for water resistance of the product are special, and good stability is also required. Use light burned magnesia powder with high content, such as 88% light burned magnesia powder. Select the ore with special low alkali burning amount, which can control the amount of caustic soda in the finished product; In addition, the water resistance of the product can be improved by controlling the caustic soda. Reburned magnesite
The light burned powder used in the biogas tank must have a solidification time of 4-7 hours. The biogas tank has strict requirements on the solidification speed of light burned magnesia powder. If it is too fast, the stability will be poor. If it is too slow, the tank body will be easy to deform.
88% light burned magnesia powder, that is, 90% by-product light burned magnesia powder, has good water resistance. However, 90% powder is afraid that the burnt product is too ripe, that is, it cannot be burnt too much.
Light magnesium oxide is mainly used in the production of rubber products and neoprene adhesive. In the manufacturing of rubber products, magnesium oxide plays the role of acid absorber and accelerator, while in the production of neoprene adhesive, it plays the role of vulcanization and cross-linking, coke prevention agent and resin chelation.
Magnesium oxide is also used in the manufacture of ceramics and enamels. It plays a role in reducing the sintering temperature and is used as a filler in the manufacture of grinding wheels and paints. In addition, it is also used in medicine, food processing, agriculture, electronic industry, insulation material industry, etc.
