Abstract

Abstract In this paper, the adsorption mechanism of α-hydroxyoctyl phosphonic acid (HPA) to ilmenite was evaluated by adsorption and flotation experiments, density functional theory (DFT) calculations, zeta potential, X-ray photoelectron spectroscopy (XPS) and FTIR measurements. DFT calculations inferred the three O atoms in PO(OH)2 group were of the reactive center of the three HPA species and their chemical reactivity was followed the order as: HPA

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