利用气溶胶浮选技术提高某铜钼矿混合浮选钼回收率

以煤油作为辉钼矿的主要捕收剂,以气溶胶形式进行加药,进行了煤油用量实验、浮选时间实验、pH值和磨矿细度影响实验,研究采用气溶胶浮选技术提高某铜钼矿钼回收率.气溶胶浮选技术可使铜钼混合浮选阶段钼回收率提高3%,且浮选时间缩短20%左右;在相同的回收率下,气溶胶浮选法使用的煤油用量可节省40%;气溶胶浮选的最佳磨矿细度为0.074mm占65%,浮选矿浆最佳pH值为9.与传统浮选工艺相比,气溶胶浮选技术具有浮选效率高、药剂用量少等特点,在低品位难选矿石浮选方面具有一定优势. 

Improving molybdenum recovery in copper-molybdenum roughing by aerosol flotation technology

Aerosol flotation technology was used to improve the molybdenum recovery of some copper-molybdenum ores. In the flotation process, kerosene, a primary collector for molybdenum, was added into the pulp in an aerosol form. Kerosene dosage test, flotation speed test, and the influence tests of pH values and grinding fineness on the aerosol flotation process were carried out. It is found that the molybdenum recovery of copper-molybdenum bulk flotation phase increases by 3% and the flotation time shortens by 20%. At the same molybdenum recovery the dosage of kerosene decreases by 40%. The best grinding fineness for aerosol flotation is that particles of 0.074 mm in size account for 65%, and the optimum pH value of the pulp is 9. Compared with traditional flotation, aerosol flotation technology can decrease the dosage of reagents and accelerate the flotation speed, showing more advantages for low-grade refractory ores.