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对4种起泡剂测定了由超声波产生的气泡的Zeta电位。在接近工业浮选矿浆中起泡剂浓度(<20ppm)时,起泡剂对气泡Zeta电位的影响可以忽略不计。随着起泡剂浓度的增大(增大至100ppm),添加F150和戊醇后产生的气泡表面上的电荷数量减少,而由MIBC和庚醇产生的气泡表面上的电荷增多,但是其表面上的电荷仍然很少。气泡表面荷电似乎不影响起泡剂在浮选中所起的作用,特别是不影响所形成的气泡尺寸的大小。应用这些数据简单讨论了在纯水中和在含有非离子型起泡剂的溶液中气泡带电模型。
The Zeta potential of the bubbles generated by the ultrasonic waves was measured for the four kinds of foaming agents. At close to the foamer concentration (<20ppm) in industrial flotation slurry, the effect of the foaming agent on bubble Zeta potential is negligible. As the concentration of the blowing agent increased (to 100 ppm), the amount of charge on the surface of the bubbles generated after the addition of F150 and pentanol decreased while the charges on the surface of the bubbles generated from MIBC and heptanol increased, but the surface The charge on the still small. Charging of the bubble surface does not seem to affect the effect of the frother on the flotation, in particular, the size of the bubble formed. Using these data, we briefly discuss the bubble charge model in pure water and in solutions containing non-ionic blowing agents.