Abstract: In order to efficiently recycle a oxidized copper ore with copper grade of 1.28% in Yunnan,according to the raw ore properties of high oxidation rate,high binding rate and fine disseminated size,dressing test was carried out by using first sulfur after oxygen flotation-flotation tailings strong magnetic separation principle process flow.The results showed that under the condition of grinding fineness -0.074 mm 84.5%,via one roughing-two cleaning-one scavenging copper sulfide flotation-copper sulfide flotation tailings one roughing-three cleaning-three scavenging copper oxide flotation- flotation tailings magnetic separation comprehensive recover copper process flow,copper sulphide concentrate with copper grade of 24.75%,recovery rate of 33.03% and copper oxide concentrate with copper grade of 16.12%,recovery rate of 39.25% were obtained;copper grade of 9.71% and copper recovery rate of 12.50% were acquired;the copper grade and recovery rate of comprehensive concentrate were 16.77%,84.87% respectively,test indexes were satisfactory.

Key words: Copper oxide, High oxidation rate, High binding rate, Flotation-magnetic separation combined process