Flotation of quartz using N-(2-aminoethyl)-octadecanamide as collector

Abstract

The flotation behavior of quartz using N-(2-aminoethyl)-octadecanamide (AEOA) as a collector was investigated. Zeta potential and infrared spectra were conducted to investigate the mechanism of the interaction of the quartz surface with the collector molecules. The results show that electrostatic force and hydrogen bond play an important role in governing the mechanism of flotation in acidic and alkaline media. The recoveries of quartz are 99.0%–99.8% in the pH range of 3–11. The recovery of quartz is less dependent on AEOA concentration, mainly due to the formation of micellae in aqueous solution, and the adsorption density of AEOA on the quartz surface nearly remains constant.

Keywords

quartz / flotation / N-(2-aminoethyl)-octadecanamide / adsorption

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