METHOD FOR OBTAINING GLASS SILICA ON THE BASIS OF CRYSTAL SCHISTS Russian patent published in 2023 - IPC C03B19/06 C03C10/04 

FIELD: construction.

SUBSTANCE: production of glass silicate based on man-made industrial waste used in construction. Method for producing glass silicate based on crystalline schists includes sieving, mixing, laying the lower layer material into moulds, grinding, laying the upper layer into moulds, sintering, annealing, cutting and quality control. For the material of the lower layer, a mixture containing finely dispersed crystalline schists, colemanite, sodium silicate soluble at a mass ratio of 5:1:1, respectively is used, a mixture of granules of coloured container glass and sodium silicate soluble at a mass ratio of (11- 12):1 is used as a glass-containing material of the upper layer.

EFFECT: reduction of energy requirement of production and improvement of properties of glass silica.

1 cl, 1 ex, 2 tbl