The invention relates to a method for smelting high-temperature refractory materials, in particular to Fused magnesia Production process method. Manufacturer of fused magnesia

Magnesite is magnesium oxide, which can be made from magnesite, brucite, dolomite, serpentine, olivine and other minerals. Generally, magnesite and brucite can be used as raw materials to calcine and decompose into magnesium oxide, which crystallizes differently due to different calcination temperatures. The magnesium oxide calcined at 600-1000 ℃ is called active magnesium oxide, and the magnesium oxide calcined at 1400-1800 ℃ is called dead burned magnesium oxide. The above two kinds of magnesium oxide are also commonly called light magnesium oxide, commonly known as furnace magnesia.

At present, the process method of producing fused magnesia is generally to use electric furnace for smelting and directly smelting magnesium ore. The disadvantage is that the power consumption is large. In addition, 80 kg of carbon rod is required for each ton of qualified fused magnesia (96.5%) smelted with the existing process. Relevant data (Special Refractories, Magnesia Technology, and High Temperature Refractories Collection) show that, The light magnesia can be heated by electric arc to form cubic crystal, that is, heavy magnesium oxide with a melting point of 2800 ℃, that is, fused magnesia. The fused magnesia can be produced by recrystallizing the magnesia produced by furnace smelting in electric furnace.