Influence of frother concentration on bubble dimensions and rising velocities
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Institute of Catalysis and Surface Chemistry Polish Academy of Sciences
Publication date: 2002-01-01
Physicochem. Probl. Miner. Process. 2002;36(1):65–76
Influence of α-terpineol concentration on local and terminal velocities of bubbles, their dimensions and shapes was studied within solution concentration range 1·10-5 to 1·10-3 mole/dm3 . Bubble behaviour was monitored using CCD camera with stroboscopic illumination and high speed camera Speedcam 512. Variations of the bubble local velocity and i, prior to reaching a value of the terminal velocity. No maximum was observed at distilled water and α-terpineol concentrations c>0.0001 mole/dm3. It was found that α-terpineol adsorption coverage of ca. 6% was the minimum needed to assure the full immobili