Effect of Solids on Gas Dispersion Characteristics: Addition of Hydrophobic and Hydrophilic Solids
There is a controversy on the role of solids in flotation systemsin terms of the characteristics of the solid-liquid-gas dispersions. The effect of slurries containing carbon or silica on the characteristics of gas-slurry dispersions generated in a flotation column was studied. Experimental results...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2012 |
| País: | México |
| Institución: | Universidad Michoacana de San Nicolás de Hidalgo |
| Repositorio: | Redalyc-UMSNH |
| OAI Identifier: | oai:redalyc.org:47523306023 |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=47523306023 |
| Access Level: | acceso abierto |
| Palabra clave: | Química up Gas hold Hydrophobic solids Hydrophilic solids Bubble coalescence |
| Sumario: | There is a controversy on the role of solids in flotation systemsin terms of the characteristics of the solid-liquid-gas dispersions. The effect of slurries containing carbon or silica on the characteristics of gas-slurry dispersions generated in a flotation column was studied. Experimental results suggest that hydrophilic solids prevent bubbles coalescence, and produces large bubble surface areas, available to collide and collect particles during flotation. On the other hand slurries with hydrophobic particles produce larger bubbles, affecting both the performance and the hydrodynamics of the process. |
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