METHOD OF PRODUCING MAGNESIA CEMENT AND METHOD OF PRODUCING MAGNESIA CEMENT SEALER Russian patent published in 2012 - IPC C04B9/20 

FIELD: chemistry.

SUBSTANCE: invention relates to technologies of producing magnesia cement, magnesia cement sealer from dolomite and can be used in the industry of building materials. The method of producing magnesia cement involves crushing dolomite chips to particle size not larger than 0.5 mm, thermal treatment of the crushed material at temperature 850-900°C while continuously stirring for 0.05-0.20 hours. The method of producing magnesia cement sealer involves treatment of the dolomite chips with hydrochloric acid solution with concentration 60-70% to obtain a salt solution with concentration not less than 1.35 kg/l, holding the solution at temperature not lower than 30°C and separating the solution and the end product in form of magnesium chloride.

EFFECT: high quality of the obtained material, reduced power consumption during processing and simple process scheme.

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