Sintered magnesia is mainly made of magnesite, water magnesite or magnesium hydroxide extracted from seawater by high temperature calcination. Strong resistance to hydration. When the magnesite is calcined at 700-950 ℃, CO2 escapes, and the resulting magnesia is a soft porous and loose material, , which can not be used for refractory materials; Magnesite calcined at 1550-1600℃, the so-called burned magnesia is called sintered magnesia. Using shaft kiln, rotary kiln and other high temperature equipment one calcining or two steps calcining process, burning magnesia with natural magnesite as raw materials called sintered magnesia; Sintered magnesia is divided into 18 grades according to its physical and chemical indexes.

97 fused magnesia

Reburned magnesia is when magnesite is calcined at 1800℃, carbon dioxide completely escapes, magnesium oxide forms a cubic magnesite dense block, weighing burned magnesia (also known as sintered magnesia), this reburned magnesia has a high refractorability. Its main component is magnesium oxide, the selection of natural special grade magnesite by flotation purification, light burning, fine grinding, high pressure pressure ball, ultra-high temperature oil shaft kiln calcined.

Light burned magnesium powder is a bending, pressure resistant, high strength, gas hard, gelling material, widely used in national defense, medicine, chemical industry, paper making, shipbuilding and other industries. In the building materials industry can be made of tire board, particle board, insulation column, railing, artificial marble, asbestos tile, ordinary tile, wall board, laying ground. With the progress of science and technology, light burned magnesium powder is more widely used, can do civil products, heavy and heavy machinery packing boxes, packaging bottom beams, high temperature refractory materials, can also make beautiful and generous gloss strong furniture, in the machinery industry can be cast models.