Calcium and magnesium belong to alkaline earth metals in the periodic table. In the refractory industry, refractory bricks with calcium oxide and magnesium oxide as the main chemical components are … Read more
The RH device is mainly used for the dehydrogenation of molten steel and later added vacuum decarburization and vacuum deoxidation. Improve the purity and alloying of molten steel. The RH … Read more
Around 1975, magnesia spinel bricks began to be used in cement kilns. Japan is the first country to apply magnesia spinel bricks in cement kilns to deal with the chromium … Read more
