CERAMIC MASS FOR PRODUCING CLINKER BRICKS Russian patent published in 2021 - IPC C04B33/132 C04B18/30 

FIELD: building materials industry.

SUBSTANCE: invention relates to the building materials industry and can be used in the manufacture of clinker ceramics. The ceramic mass includes man-made waste from the mining and metallurgical complex. As technological waste of the mining and metallurgical complex, it contains dump slag of copper-nickel production of average composition, wt.%: MgO - 13.31; SiO₂ - 40.67; FeO - 23.51; Fe₂O₃ - 12.00; Al₂O₃ - 6.03; СаО - 2.09; Na₂O - 1.04; TiO₂ - 0.71; K₂O - 0.53; MnO - 0.11, tailings of concentration of apatite-nepheline ores of average composition, wt.%: Al₂O₃ - 21.17; SiO₂ - 40.95; Na₂O - 10.13; K₂O - 5.85; СаО - 6.01; FeO - 2.63; Fe₂O₃ - 5.85; TiO₂ - 2.53; P₂O₅ - 2.20; MgO - 1.19; MnO - 0.27; SrO - 0.22; LOI - 1.00, wastes of concentration of ferruginous quartzites of average composition, wt.%: SiO₂ - 63.31; Al₂O₃ - 4.16; FeO - 2.16; Fe₂O₃ - 20.84; СаО - 3.71; MgO - 3.22; Na₂O - 1.00; K₂O - 0.75; TiO₂ - 0.12; P₂O₅ - 0.10; MnO - 0.13; SO₃ - 0.10; LOI - 0.40, with the following ratio of components, wt.%: dump slag of copper-nickel production - 38-42; tailings of concentration of apatite-nepheline ores - 38-42; iron ore dressing wastes - 16-24.

EFFECT: invention allows increasing the compressive and bending strength of the resulting clinker brick, increasing its frost resistance, as well as expanding the raw material base and improving the environmental situation through the use of waste from the mining and metallurgical complex.

1 cl, 2 tbl