Froth flotation
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Sodium Benzoate and Urea as Promoters in Sillimanite Flotation
Abstract: Sillimanite is an alumino-silicate mineral with the chemical formula Al2SiO5. Sillimanite in general is concentrated by gravity separation methods followed by froth flotation. Hydrophobicity is induced to sillimanite surface by adsorbing surfactant (oleic acid/oleate) molecules selectively and the mineral is collected into froth as concentrate. Other reagents used are; sodium silicate to depress garnet and silica and sodium hydroxide to adjust the pulp pH. In the present study, hydrotropes (sodium …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 7, Issue 3, 2016 · pp. 1–7 Read article
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Surface Chemistry of Flotation
Abstract: Flotation technology is widely used to recover and concentrate minerals from the ores. The technique involves, inducing surface hydrophobicity to a mineral selectively and collect the same through air bubbles from aqueous phase. For the efficient design of flotation processes and equipment, an in-depth understanding of hydrophobic hydration of floatable mineral particles is essential. The different theories associated with and the underlying mechanisms are surveyed in this paper.Cite this Article …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 7, Issue 1, 2016 · pp. 91–94 Read article