CERAMIC MIXTURE FOR MAKING FACING TILE Russian patent published in 2014 - IPC C04B35/16 C04B33/132 

FIELD: chemistry.

SUBSTANCE: ceramic mixture contains, wt %: copper-nickel ore beneficiation wastes 39.8-58.5, nepheline additive in form of apatite-nepheline ore beneficiation wastes 19.0-39.8, iron ore beneficiation wastes 14.6-19.9 and binder - sulphite alcohol spent liquor 0.5-5.0. The copper-nickel ore beneficiation wastes contain, wt %: chlorite, hydrochlorite 50.6-65.7, serpentine minerals 10.2-15.0, talc 10.0-14.0, magnetite 3.2-7.1, pyroxenes, amphiboles 5.0-6.7, albite 2.0-2.3, quartz 1.9-2.2, gypsum 1.9-2.1. The apatite-nepheline ore beneficiation wastes contain, wt %: nepheline 56.8-61.1, aegirine 10.2-13.0, nepheline secondary minerals 7.5-10.2, feldspar 5.8-7.4, apatite 3.4-5.4, sphene 2.2-3.2, ore minerals 0.9-1.7, mica 1.5-2.3. The iron ore beneficiation wastes contain, wt %: quartz 56.2-68.9, feldspar 17.0-25.5, mica 4.4-8.4, amphibole and pyroxene 1.5-3.4, mineral aggregates 1.3-3.3, magnetite 1.2-3.2.

EFFECT: high strength and low water absorption of articles made from the ceramic mixture.

4 cl, 2 tbl