CERAMIC COMPOSITION FOR MAKING BRICKS Russian patent published in 2016 - IPC C04B33/135 C04B33/138 

FIELD: ceramic industry.

SUBSTANCE: invention relates to ceramic materials industry, primarily to compositions of mixtures for making ceramic bricks. Ceramic mixture contains the following components, wt%: inter-shale clay 50-70, burnt rocks formed after spontaneous burning of slate coal 25-38, magnesium-containing slag from production of high-carbonized ferrochromium 5-12. Slag from production of high-carbonized ferrochromium containing oxides, wt%: Cr₂O₃ 3.72; SiO₂ 27.33; Al₂O₃ 20.3; Fe₂O₃ 0.94; CaO 0.91; MgO 46.8, is introduced into the ceramic mass been ground until passage through a sieve of 1.0 mm. Obtained technical solution using magnesium-containing slag from production of high-carbonized ferrochromium increases frost resistance and strength of ceramic bricks.

EFFECT: use of industrial raw materials in production of ceramic bricks enables recycling of industrial wastes, environmental protection, expansion of raw material base for ceramic materials.

1 cl, 4 tbl