The copper mine is the sulfide-oxidized copper ore. The grade of copper is 0.5%, with the oxidation of 22%. According to the properties of the ore; systematic study was did for the ore, include collectors, activators and grinding fineness. Under the optimized conditions, copper concentrates grade of Cu 16.56% with a recovery of 85.62% was obtained through the locked cycle flotation of twice roughing, four times cleaning, once scavenging and middling return in order.
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