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|Title:||Enhancement of shear flocculation of a galena suspension by ultrasonic treatment||Authors:||Esmeli, K.
Surface active agents
Potassium ethyl xanthate
|Issue Date:||2023||Publisher:||South African Institute of Mining and Metallurgy||Abstract:||The enhancement of shear flocculation of a galena suspension by ultrasound in the presence of sodium isopropyl xanthate and potassium ethyl xanthate was investigated by studying the effects of surfactant concentration on flocculation efficiency, contact angle, and zeta potential. Strong flocculation was obtained under alkaline conditions (pH > 9) and a high ultrasound power level (150 W). Although the ultrasonic treatment increased the negativity of the zeta potential of the galena particles, this did not decrease the flocculation efficiency, thereby showing that the hydrophobic interactions between the particle were stronger than the electrical double-layer repulsion resulting from xanthate adsorption. The findings indicate that the ultrasonic treatment promoted the adsorption of surfactants onto the mineral surfaces. © 2023 South African Institute of Mining and Metallurgy. All rights reserved.||URI:||https://doi.org/10.17159/2411-9717/1600/2023
|Appears in Collections:||Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collections|
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checked on Nov 27, 2023
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