IMPROVED SLAG FROM NON-FERROUS METALS PRODUCTION Russian patent published in 2020 - IPC C22B4/00 C22B7/00 C22B15/00 

FIELD: metallurgy; construction.

SUBSTANCE: group of inventions relates to the use of non-ferrous metal slag in the construction industry. Slag contains, in terms of dry substance and when expressing presence of metal through total content of metal, present in form of metal in elementary form, and metal present in oxidised state, at least 7 wt % and not more than 49 wt % of iron, not more than 1.3 wt % copper, at least 24 wt % and not more than 44 wt % silicon dioxide, at least 2.0 wt % and not more than 20 wt % of calcium oxide, at least 0.10 wt % and not more than 1.00 wt % of zinc, at least 0.10 wt % and not more than 2.5 wt % magnesium oxide, at least 4.0 wt % and not more than 12 wt % of aluminum oxide and at least 0.005 wt % and not more than 0.100 wt % of lead.

EFFECT: modernization of slag of production of non-ferrous metals with possibility of its use in construction industry.

48‬ cl, 2 tbl, 3 ex