Silica bricks are produced by using silica of which SiO₂ content is not less than 96% as raw materials, adding iron scale, lime milk as mineralized agent, while ligno-cellulose sulfite extract as binder, obtained by mixing, forming, drying and sintering.

　　Silica bricks have excellent characteristics as follows:

　　Low creeping;

　　Low melt index;

　　High strength;

　　High silica content;

　　High thermal conductivity;

　　High refractoriness under load;

　　Good thermal shock resistance;

　　Stable volume in high temperature.

　　Applications of silica bricks:

　　Coke oven

　　Silica bricks can be used for regenerator, connecting duct, combustion chamber, coking chamber and oven top in coke oven masonry construction, because of high refractoriness under load, high thermal conductivity, good thermal shock resistance and stable volume in high temperature.

　　Hot-blast stove

　　Silica bricks are widely used for top, partition wall and the upper of regenerator in large hot-blast stove, due to low creeping, high strength and good thermal shock resistance.

　　Glass furnace

　　Silica bricks are mainly used for the superstructure of glass furnace, such as gable, breast wall, suspended arch and port, etc, as well as for regenerator, because of high silica content and low melt index.