COAL FLOTATION METHOD Russian patent published in 1995 - IPC

FIELD: mineral resources benefication. SUBSTANCE: coal flotation method provides for initial raw material pulping, pulp conditioning with collecting agent and foam making agent and with following separation and extraction of hot mass into foam product. Propylene pentomers produced in process of oligomers production are introduced in process of conditioning as collectors. EFFECT: simplified technology and increased productivity. 2 tbl