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Froth flotation of sphalerite: Collector concentration, gas dispersion and particle size effects
| Content Provider | Semantic Scholar |
|---|---|
| Author | Pérez-Garibay, Roberto Ramírez-Aguilera, N. Bouchard, Jocelyn Rubio, Juan |
| Copyright Year | 2014 |
| Abstract | Abstract This experimental work on sphalerite flotation investigated the effect on flotation performance of three particle size fractions, namely, coarse ( d 80 = 100 μm), medium ( d 80 = 39 μm) and fine ( d 80 = 15 μm), bubble size distribution, superficial air velocity, and collector dosage. Bubble size distributions were characterized with the image analysis technique. The two-phase (liquid–gas) centrifugal pump and frother addition (MIBC, 5–30 ppm) allowed generating bubble diameters between 150 and 1050 μm, and air holdup ranging from 0.2% and 1.3%. Main results showed that each particle-size distribution required an optimal bubble-size profile, and that sphalerite recovery proceeded from mechanisms involving true flotation (when J g = 0.04 cm/s and 1.9 × 10 −4 M SIPX). However, cluster-flotation occurs at high collector dosage (when J g = 0.04 cm/s and d 32 between 285 and 1030 μm), and requiring further investigation. |
| Starting Page | 72 |
| Ending Page | 78 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.mineng.2013.12.020 |
| Volume Number | 57 |
| Alternate Webpage(s) | http://www.ufrgs.br/ltm/period_min/2014-Froth%20flotation%20of%20sphalerite-%20Collector%20concentration,%20gas%20dispersion%20and%20particle%20size%20effects.pdf |
| Alternate Webpage(s) | https://doi.org/10.1016/j.mineng.2013.12.020 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
