The reason why high-alumina raw materials is selected to produce refractory bricks is that its high resistance to temperature increases with the elevation of Al2O3 content.With the decrease of impurity content in raw materials, fire resistance is improved. At the same time, if the aluminum content o

SEPPE calcined bauxite is produced by calcining of low iron, low alkali containing raw bauxites at temperatures of 1600 - 1800 degree Celsius. This removes moisture thereby increasing the alumina content.Refractory grade bauxites have a high alumina content and a very low alkali content with low imp

Firebricks are manufactured in ways similar to ordinary masonry bricks but they are fired at higher temperatures until partial vitrification has occurred.Insulation firebricks are made from fireclays with added alumina, for its refractory properties, and organic filler which burns away during firing

Referred to as refractory brick. Refractory material with a certain shape and size. According to the preparation process, it can be divided into bricks, brick, electric melting brick (Cast Brick), the refractory insulating bricks; according to the shape and size, it can be divided into standard brick, ordinary brick, specific rotation.

Bauxite is a natural, very hard mineral used predominantly in road systems for its high-friction and anti-skid properties.