Dead-burned magnesite is selected rom natural magnesite, it is produced by mine-selecting,purifying, calcining in shaft kiln. It is an ideal material for unshaped refractory material, the final products are used in open hear-th furmace, eletric frurnace bottom a-nd furnace''s lining tamping.
MgO 90% MIN. SiO2 5.0% MAX. CaO 1.6% MAX. LOI 0.3% MAX. B.D3.10-3.15g/ cm3

DBM-91
MgO 91% MIN. SiO2 4.0% MAX. CaO 1.6% MAX. LOI 0.3% MAX. B.D3.10-3.18g/ cm3

DBM-92
MgO 92% MIN. SiO2 3.5% MAX. CaO 1.6% MAX. LOI 0.3% MAX. B.D3.10-3.18 g/ cm3

DBM-94
MgO 94% MIN. SiO2 3.5% MAX. CaO 1.6% MAX. LOI 0.3% MAX. B.D 3.20 g/ cm3

DBM-95
MgO 95% MIN. SiO2 2.5% MAX. CaO 1.6% MAX. LOI 0.3% MAX. B.D 3.20 g/ cm3
DBM-96
MgO 96% MIN. SiO2 1.0% MAX. CaO 1.5% MAX. Fe2O3 0.8% MAX. LOI 0.3% MAX. B.D 3.20 ( g/ cm3)

DBM-97
MgO 97% MIN. SiO2 1.0% MAX. CaO 2.0% MAX. Fe2O3 0.8% MAX. LOI 0.3% MAX. B.D 3.23-3.28 ( g/ cm3)

DBM-97.5
MgO 97.2% MIN. SiO2 0.75% MAX. CaO 1.6% MAX. Fe2O3 0.8% MAX. LOI0.3% MAX. B.D 3.25-3.28( g/ cm3)