Effect of Solids on Gas Dispersion Characteristics: Addition of Hydrophobic and Hydrophilic Solids | Zendy

Francisco José Trigo Tavera | Zendy; R. Escudero | Zendy

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Effect of Solids on Gas Dispersion Characteristics: Addition of Hydrophobic and Hydrophilic Solids

Author(s) -

Francisco José Trigo Tavera,

R. Escudero

Publication year - 2017

Publication title -

journal of the mexican chemical society

Language(s) - English

Resource type - Journals

ISSN - 2594-0317

DOI - 10.29356/jmcs.v56i2.325

Subject(s) - slurry , coalescence (physics) , dispersion (optics) , bubble , chemical engineering , materials science , economies of agglomeration , composite material , mechanics , physics , astrobiology , optics , engineering

There is a controversy on the role of solids in flotation sys- tems in 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 col- lide 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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