FIELD: chemistry.
SUBSTANCE: invention relates to building materials and can be used in production of cement, as well as articles based on caustic magnesite. The method of preparing portland cement from dolomite involves crushing dolomite, roasting it at 900-1100°C, slaking with water into a lime suspension, its separation into heavy and light particles through settling for 1-2 hours with separation of light particles - lime milk, thickening of the lime milk into a lime paste through settling for 20-24 hours, adding clay to the lime paste, homogenisation of the obtained raw mixture, its sinter roasting and fine grinding the obtained clinker with gypsum stone.
EFFECT: increased strength of the portland cement.
2 tbl, 2 ex, 1 dwg
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