processing coal what materials are used

What is the use of coal in the cement manufacturing ... Coal is used to burn raw material to clinkering temp. i.e 1450 degree centigrade. Low grade coal can be used for cement manufacturing but it will need high grade of limestone for good quality cement. you can say low grade coal need high grade limestone and high grade coal need low grade limestone. The Coal Facts: thermal coal vs. metallurgical coal ... Metallurgical coal or coking coal is used in the process of creating coke necessary for iron and steel-making. Coke is a porous, hard black rock of concentrated carbon that is . UG-Mat Coal Bottom Ash/Boiler Slag | Recycled Materials ... Coal Bottom Ash/Boiler Slag - Material Description Origin Coal bottom ash and boiler slag are coarse, granular, incombustible materials that are collected from the bottom of furnaces that burn coal.    Read More

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