含钒石煤浮选精矿浸出工艺研究

Taking the vanadium-containing stone coal concentrate obtained by pre-flotation of a certain high-calcium-magnesium mica-type vanadium-containing stone coal in Hubei as the raw material, the leaching experiment research was carried out. The experimental results show that under the conditions of sulfuric acid mass concentration of 30%, liquid-solid ratio of 4:1, leaching temperature of 90 °C, sodium fluorosilicate dosage of 16%, and leaching time of 12 h, a high vanadium leaching rate of 86.18% can be obtained.

以湖北某高钙镁云母型含钒石煤经预浮选获得的含钒石煤精矿为原料,进行了浸出实验研究。实验结果表明,在硫酸质量浓度为30%、液固比为4:1、浸出温度为90 ℃、氟硅酸钠用量为16%、浸出时间为12 h的条件下,可获得86.18%的高钒浸出率。