Mineral Processing Flowsheet for Copper Ore from Yunnan in Low Alkali Condition

Based on comprehensive flotation tests with a copper ore from Yunnan,two different processing flowsheets,Cu-S bulk flotation-Cu/S separation and direct flotation without further separation,were compared with each other.The results showed that,with a direct flotation flowsheet containing a roughing,two stages of scavenging,and four stages of cleaning of regrinded rough concentrate,a copper concentrate with Cu grade and recovery as 21.00% and 87.73%,respectively,can be obtained.Furthermore,an iron concentrate with TFe grade and recovery of 55.89% and 21.59%,respectively,can be collected from the flotation tailings by magnetic separation.