FIELD: construction.
SUBSTANCE: method of obtaining of low-temperature Portland cement clinker by grinding of cement raw materials with addition of the catalyst and subsequent calcination of furnace charge in the calcination furnace, while the catalyst is used Na or K bromide or mix of Ca, Na, K bromides in number of 0.1-15 wt % to initial raw mix, taken in dry form, and at the output from the calcination furnace combustion gases are cooled and purified.
EFFECT: invention allows to get Portland cement clinker at the lowered temperature of calcination of raw materials that allows to decrease fuel consumption for decarbonisation and calcination of clinker in the furnace.
3 cl, 2 tbl, 1 dwg
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