FIELD: concentration of barite ore, fine-grained calcite-barite ore for production of barite concentrate. SUBSTANCE: barite ore is crushed, ground and screen in mode of segregation on surface of screen, thus obtaining finished barite concentrate in the undersize of screen. Prior to grinding, barite ore is heated at temperature of 200 to 300 for 20 to 60 min, after which it is ground in impact crushers at velocity of crushing bodies from 47 to 52 m/s. The oversizes are ground in impact crushers at velocity of crushing bodies from 50 to 52 m/s. EFFECT: enhanced efficiency. 2 cl, 1 dwg
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