METHOD OF PRODUCING BINDER BASED ON INDUSTRIAL WASTES Russian patent published in 2024 - IPC C04B7/153 C04B7/52 

FIELD: chemistry; various technological processes.

SUBSTANCE: invention relates to a method of producing a binder based on industrial wastes, which can be used in the cement and construction industries. Method of producing binder based on industrial wastes involves grinding portland cement clinker and industrial wastes. Waste of vanadium production is used as industrial wastes, containing, wt.%: SiO₂ 3.22; Al₂O₃ 0.41; CaO 36.93; MgO 5.03; V₂O₅ 2.81; Mn₂O₃ 17.39; SO₃ 33.02; losses during calcination of 1.19, and wastes of beneficiation of ferruginous quartzites of the Kursk magnetic anomaly, containing, wt.%: Fe₂O₃ 4.06; FeO 9.45; SiO₂ 72.74; Al₂O₃ 2.52; CaO 3.12; MgO 5.84; S 0.21; P 0.16; K₂O 0.65; Na₂O 0.98; TiO₂ 0.27. Said vanadium production wastes and beneficiation wastes of ferruginous quartzites of the Kursk magnetic anomaly are mixed in a weight ratio of 1:1 for 0.20 hours, 88–90 wt.% of portland cement clinker is added and the mixture is ground together in a centrifugal planetary mill for 0.25 h to specific surface area of 6,400 cm²/g.

EFFECT: reduction of energy consumption, reduction of binder grinding time and improvement of end product quality.

1 cl, 5 tbl, 1 ex