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MAGNESIA REFRACTORY RAW MATERIAL FOR A CEMENT ROTARY KILN CAPABLE OF PREVENTING ENVIRONMENTAL CONTAMINATION BY NOT CONTAINING CHROME COMPONENTS, AND A MAGNESIA REFRACTORY USING THE SAME
MAGNESIA REFRACTORY RAW MATERIAL FOR A CEMENT ROTARY KILN CAPABLE OF PREVENTING ENVIRONMENTAL CONTAMINATION BY NOT CONTAINING CHROME COMPONENTS, AND A MAGNESIA REFRACTORY USING THE SAME
PURPOSE: A magnesia refractory raw material for a cement rotary kiln is provided to offer excellent spalling resistance, alkali resistance, and coating adhesiveness by property controlling the porosity of magnesia and the content of Fe2O3.;CONSTITUTION: A magnesia refractory raw material for a cement rotary kiln contains 1-8wt% of Fe2O3, and the apparent porosity of the material is 3-10%. The magnesia refractory raw material containing Fe2O3 for the cement rotary kiln contains the followings: more than 65wt% of magnesia with 1-8wt% of Fe2O3; and less than 35wt% of more than one selected from regular magnesia, spinel, or zirconia.;COPYRIGHT KIPO 2013;[Reference numerals] (AA) Invention example 1; (BB) Invention example 2; (CC) Invention example 3; (DD) Comparative example 1; (EE) Comparative example 2
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