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It is made by calcining magnesite at 700~1100℃. It has a loose texture, strong chemical activity, and a high specific surface area. It easily reacts with water. It is a raw material for the production of high-quality magnesia, synthetic magnesia, and synthetic magnesia spinel through two-step calcination. It can be processed into magnesium balls and used in the manufacture of magnesia cement and prefabricated panels. It is also an important raw material for ceramics, building materials, and chemical products. Meanwhile, it is widely used in livestock feed additives, soil improvement, and other aspects.
Product specifications
Brand/Index | QM96 | QM95 | QM94 | QM93 | QM92 | QM90a | QM90B | QM87a | QM85 | |
Chemical composition % | MgO≥ | 96.00 | 95.00 | 94.00 | 93.00 | 92.00 | 90.00 | 90.00 | 87.00 | 85.00 |
SiO2≤ | 0.50 | 1.00 | 2.00 | 3.00 | 3.00 | 4.00 | 4.00 | 5.00 | 5.00 | |
CaO≤ | 1.00 | 1.50 | 2.00 | 2.00 | 2.00 | 2.00 | 2.50 | 3.00 | 3.50 | |
Fe2O3≤ | 0.70 | 0.75 | 0.90 | 0.90 | 1.00 | 1.20 | 1,20 | 1.50 | 1.50 | |
Burning amount % | 2-3 | 3-5 | 3-5 | 3-5 | 3-5 | 3-5 | 3-5 | 3-5 | 3-5 | |
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