COARSE-CERAMIC REFRACTORY MATERIAL AND REFRACTORY ARTICLE MADE THEREFROM Russian patent published in 2011 - IPC C04B35/43 C04B35/03 

FIELD: chemistry.

SUBSTANCE: invention relates to coarse-ceramic refractory material and a refractory article. According to the invention, the coarse-ceramic refractory material contains at least one granular refractory mineral basic component from basic refractory raw material based on MgO or MgO and CaO, and at least one granular refractory mineral additive which gives elasticity, in form of forsterite or forsterite material containing 50 wt % of a fraction with particle size of mainly 1-6 mm. The additive used can be a mixture which forms forsterite material, mainly in form of moulted parts, such as granules or briquettes with grain size between 0.3 and 8 mm. Said additive is contained in the refractory material in amount of 3-30 wt %.

EFFECT: high resistance of the refractory material to molten silicates and resistance to differential temperature.

20 cl, 1 tbl, 3 dwg