METHOD OF CONCENTRATION OF STICKY ARGILLACEOUS AND DIFFICULT-TO-TRANSPORT ORES WITH HIGH CONTENT OF FINES AND MOISTURE Russian patent published in 2001 - IPC

FIELD: processing of minerals; applicable in metallurgical and mining and chemical industries. SUBSTANCE: prior to process of concentration, ore is subjected to primary, secondary and fine crushing with subsequent comminution in drum mills. Before fine and secondary crushing, ore is screened with washing, and fines are separated as undersize at all stages of crushing. Comminution and subsequent concentration of undersize product and ore after fine crushing are carried out separately. EFFECT: higher efficiency of recovery of useful mineral from ores and increased quality of concentrate, and stability of operation of concentrating mill. 1 dwg