SLAG TREATMENT METHOD Russian patent published in 2020 - IPC C04B7/153 C04B18/14 C04B28/02 B02C23/06 

FIELD: chemical or physical processes.

SUBSTANCE: group of inventions relates to a method for treating blast-furnace slag, a product obtained using said method and use thereof. Method of wet blasting of blast-furnace slag involves introduction of more than 100 kWh of energy of grinding into metric ton of slag, mass ratio of slag to water is 0.05–4:1 and to the material ground before or during wet grinding, from 0.005 to 2 wt %, in terms of slag, of the milling additive, selected from at least one compound selected from a group comprising a polycarboxylate ether, a phosphated polycondensation product, lignosulphonate, melamine formaldehyde sulphonate, naphthalene-formaldehyde sulfonate, monoglycols, diglycols, triglycols and polyglycols, polyalcohols, alkanolamine, amino acids, sugar, molasses and calcium silicate hydrate-based accelerators. Invention is developed in dependent items of the formula.

EFFECT: technical result is obtaining a product based on ground blast furnace slag having high reactivity and strength.

14 cl, 1 tbl, 2 ex