Study on Effect of Metal Cations on Flotation Behavior of Copper Zinc Sulfide Ores
In the flotation process of copper zinc sulfide ore,there are some metal ions or inorganic anions in the slurry,and the mineral itself may also dissolve and release some ions in the slurry,affecting mineral flotation.In this article,the effect of metal ions on the flotation behavior of chalcopyrite,sphalerite,and pyrite in the system of allyl hexyl thiocarbamate collector was investigated through single mineral flotation experiments.The results indicated that within the pH range of 2～12,Ca2+,Fe3+and Fe2+had no effect on the flotation performance of chalcopyrite,Cu2+had a significant activation effect on the flotation of sphalerite and pyrite,while Fe3+had no effect on the flotation performance of sphalerite.When pH was below 11,Ca2+could promote the interaction between sphalerite and collectors,and when pH was 12,Ca2+had an inhibitory effect on sphalerite flotation.When pH was below 6,Fe2+had no effect on the flotation of sphalerite,while when pH was higher than 6,Fe2+had a certain activation effect on the flotation of sphalerite.Ca2+,Fe3+and Fe2+had a certain inhibitory effect on pyrite flotation,with Ca2+having the strongest inhibitory effect.
NETL
NSTL
万方数据
