Production process of high purity magnesia

For high temperature refractory metallurgical processing method, especially in the production process of high purity magnesia method, its characteristic is to various furnaces magnesium oxide, and furnace production of fused magnesia fur and above 600 ℃ calcination method of various grades of magnesia as raw material, or any of the above mixture as raw materials, raw materials or the above raw materials according to the grade is divided into concentrate and thick charge by way of concentric rings or raw materials (or its mixed materials) for concentrate, the magnesite stone for roughage, put above the proportion of a species to load in a concentric way using existing fused magnesia furnace smelting, or ouija board is separated, May exceed 96.5% purity than fused magnesia.

Production process method of fused magnesia, its characteristic is using rotary kiln furnace production of fused magnesia fur or furnace production of various ore concentrate magnesium oxide, magnesite roughage, in the furnace, the existing technology is not variable, only within the plate, diaphragm separation is added in the furnace load concentration, external load of coarse grains have partition, partition with high temperature resistant material baffle position within the furnace wall of about 50 mm, formation of coarse grains and enrichment separation layer, and then melt, increase material and is referred to a partition, until melting furnace wei chi, 96.5% purity can obtain more high-quality fused magnesia.

Fused magnesia is a kind of high purity, high melting point, the structure is compact, alkaline refractory materials, widely used in metallurgical industry, glass industry, cement industry, household appliances, heaters and temperature field of chemical industry, it is not only due to the melting point of magnesium oxide is 1800%, higher oxide and its resistance to basic slag of alkaline oxide chemical corrosion and high performance. Fused magnesite refractory raw material is a unique advantage. Electric fused magnesia is widely used in domestic and foreign markets. There are two groups of high-purity magnesium oxide production in the world, one is in Shanghai, and the other is in Shanghai. Because our country has unique magnesite resources, the production of high-purity magnesium oxide sent by the development day of Our country is an advantage.