METHOD OF PRODUCING BINDER BASED ON INDUSTRIAL WASTES Russian patent published in 2024 - IPC C04B7/19 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 a binder based on industrial wastes comprises grinding portland cement clinker and industrial wastes. Wastes of vanadium production are 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 1.19, and ash-slag wastes ASW-1, containing, wt.%: Na₂O 0.78; MgO 2.63; Al₂O₃ 22.15; SiO₂ 52.39; K₂O 1.94; CaO 3.59; TiO₂ 1.05; MnO 0.69; Fe₂O₃ 7.73; P₂O₅ 0.36; SO₃ 0.37; loss on ignition 6.32. Said vanadium production wastes are mixed with ash-and-slag wastes at a weight ratio of 2:1, 84–86 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: reduced power consumption, higher quality of end product.

1 cl, 5 tbl, 1 ex