FIELD: chemistry.
SUBSTANCE: invention relates to chemistry and can be used to process environmentally hazardous phosphogypsum. Phosphogypsum is mixed with used cooling and hydraulic fluids containing ethylene glycol. The mixture undergoes deep dehydration to form a powdered product at temperature of 100-170°C while stirring constantly and then subjected to high-temperature burning.
EFFECT: invention enables recycling of environmentally hazardous wastes.
3 cl
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