Abstract: The grade of a copper oxide ore in Xinjiang is low. In order to determine a reasonable utili⁃ zation process of the ores，the mineral processing experiments were carried out based on the process miner⁃ alogy research. The results showed that the oxidation rate of the ores reach up to 93.12%. The value copper minerals atacamite is with the fine disseminated grain size，and associate closely with gangue minerals， such as dolomite and chlorite，which makes it difficult to achieve monomer dissociation. The ore belongs to low grade and refractory copper oxide ore，which is easy to be mud. When the grinding fineness is -0.074 mm accounting for 85%，flotation process of one roughing，two cleaning，two scavenging and middling re⁃ turning in sequence was adopted and the copper concentrate with Cu grade of 27.20% and recovery rate of 75.39% was obtained，which realized the effective recovery of copper.

Key words: atacamite, high oxidation rate, sulfuration flotation, copper concentrate