FIELD: process engineering.
SUBSTANCE: invention relates to ore dressing and may be used in coal briquetting. Proposed method comprises preparation and flotation concentration with water-coal pulp liquid ratio of 1:5 and adding apolar collector as process activator in amount of 30-50 g/t prepared on the base of bitumen emulsified in high-turbulence conditions using wastes of non-halogenated organic solvents. Flotation concentrate is dried at 60°C with subsequent briquetting at 30 MPa and isothermal curing of coal briquettes at 90 °C for 30 min.
EFFECT: higher efficiency.
2 dwg
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