FIELD: technology of silicates, building materials.
SUBSTANCE: invention relates to additives used in production of cement clinker. Additive for cement clinker comprises magnesium lignosulfonate, fluorine-containing salt and, additionally, ground pyrite cinders taken in the following ratio of components, wt.-%: magnesium lignosulfonate, 5.0-10.0; fluorine-containing salt, 50.0-70.0, and ground pyrite cinders, 25.0-40.0. Invention provides enhancing quality of cement clinker and decreasing consumption of fuel in its roasting.
EFFECT: improved and valuable properties of additive.
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