Study on the Flotation Process of Recovering Gold and Copper Minerals from a Gold-Copper Ore by Segmented Flotation.

With the gradual reduction of easily beneficiated copper sulfide ore resources, the recovery and utilization of refractory copper oxide ore has become an important research direction in the field of mineral processing. The grade of copper and gold in a gold-copper ore is 1.86% and 3.52 g/t, respectively. The particle size of independent gold minerals in the ore is mine, basically below 1 µm, or wrapped in metal mineral or gangue minerals in the form of line particles, and the oxidation rate of copper in the ore is 91.85%, so the ore belongs to refractory ore. In order to recover the valuable components in the ore to the greatest extent, different flotation product schemes are compared according to the ore properties, and the segmented Rotation process is determined to recover gold and copper in the ore, that is, copper sulfide minerals and gold-bearing sulfide minerals are preferentially floated from the ore to obtain qualified gold-copper concentrate. Copper oxide minerals are recovered from the tailings of selective flotation, and a copper concentrate product wkh gold valuation is obtained, thus the valuable components in the ore are recovered and utilized by a segmented flotation process. On the basis of detailed flotation condition tests, a small locked-cycle test was carried out, and finally a gold-copper concentrate with 15.39% Cu and 152.39 g/t Au and copper concentrate wkh 28.02% Cu and 10.39 g/t Au were obtained. Overall, the total concentrate had copper grade of 24.73% and gold grade of 47.41 g/t, wkh the total recovery of copper being 87.41% and the total recovery of gold being 88.32%. [ABSTRACT FROM AUTHOR]