FIELD: chemistry.
SUBSTANCE: invention relates to a method of producing gypsum binder. The method of producing gypsum binder by dry processing of starting material which is phosphogypsum and/or gypsum rock and a modifying additive, involving mixing, heat treatment and grinding the starting material under the action of an external alternating electromagnetic field in the frequency range of 10-1000 Hz with field strength of up to 100 kA/m in the presence of magnetic-susceptible granular filler with further separation of the obtained dry powder into gypsum binder and magnetic-susceptible granular filler.
EFFECT: high quality of the obtained product, simple technique of production and low power consumption.
11 cl, 7 tbl, 7 ex
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