Difference between high-purity magnesia and light-burned magnesia powder

The higher the purity of high-purity magnesia, the less the binding phase and the more unstable it is, and it is not necessarily suitable for making refractory materials.

From the perspective of market demand, high-purity magnesia

What is the market demand for magnesia with MgO ≥ 98%? The variety structure of refractory raw materials should conform to the demand structure of the raw material market. From the perspective of the demand of steelmaking converter, except for the products produced by high-purity magnesia with MgO ≥ 98% at the trunnions on both sides of the converter and the slag line. Other areas do not need to use high-purity magnesia to produce refractory products. Magnesium oxide is produced by light burning kiln, magnesite ore, coal gas generated by coal combustion and high temperature calcination. Application field: magnesium oxide

The main application fields of the products are national defense, medicine, chemical industry, paper making, shipbuilding and other industries. In the building materials industry, it can be used to make tire boards, particleboards, thermal insulation columns, railings, artificial marble, asbestos tiles, ordinary tiles, wallboards, and flooring. With the progress of science and technology, the use of calcined magnesium powder is more extensive. It can be used as civil products, light and heavy machinery packaging boxes, packaging bottom beams, high-temperature refractory materials, and also can be used to make beautiful and bright furniture, and can be used as casting models in the machinery industry.

High-purity magnesia is made from super-grade magnesite ore through light burning, fine grinding, dry ball pressing and ultra-high temperature oil shaft kiln sintering. The content of MgO is more than 97%, the content of impurities is low, the crystals form direct combination, and the structure is dense. It is an ideal raw material for producing high-grade alkaline bricks. Preparation of magnesite thermal separation and some gravity separation. Light burned magnesium has high activity and is an ideal raw material for producing high volume and dense magnesia. It mainly manufactures cementitious materials and can also be used as ceramic raw materials. After chemical treatment of light burned magnesium, it can be made into a variety of magnesium salts, which can be used as raw materials in medicine, rubber, man-made fiber, paper and other aspects. The re-burned magnesia products are mainly made of magnesite through high-temperature shaft kiln sintering. The content of MgO is high, usually between 90 and 93%. It is the raw material for producing ordinary magnesia bricks and amorphous refractories