菱镁矿浮选尾矿浆液的烟气脱硫性能

Flue Gas Desulfurization Capability of Magnesite Flotation Tailings Slurry

以菱镁矿浮选尾矿浆液为烟气脱硫剂,采用湿法烟气脱硫技术,对模拟烟气进行脱硫研究。实验结果表明:在脱硫剂浆液质量分数10%、脱硫剂浆液温度60℃、脱硫时间10 min时,脱硫剂浆液的脱硫率为85%;向脱硫剂浆液中添加柠檬酸和乙二酸时均有助于提高脱硫率,当有机酸的浓度3.5 mmol/L时,添加柠檬酸的脱硫剂浆液的脱硫率为96%,添加乙二酸的脱硫剂浆液的脱硫率为90%。

The simulated flue gas was treated by wet flue gas desulfurization process using magnesite flotation tailings slurry as desulfurizer. The experimental results show that：When the mass concentration of the desulfurizer is 10%,the desulfurization temperature is 60 ℃ and the desulfurization time is 10 min,the desulfurization rate is 85%;The addition of citric acid or oxalic acid into the desulfurizer is favorable for increasing desulfurization rate,and when the concentration of the organic acid is 3.5 mmol/L,the desulfurization rates with citric acid addition and oxalic acid addition are 96% and 90% respectively.