Abstract
The flotation behavior of anglesite at different pulp pH levels was studied, with salicyl hydroxamic acid (SHA) acting as collector. The results demonstrated the effectiveness of SHA over a wide pH range. Zeta potential, adsorption, and x-ray photoelectron spectroscopy measurements were carried out to explore the interactions between SHA and anglesite. The results showed that the adsorption of SHA on the surface of anglesite was both chemical and physical. Furthermore, experiments with a bench-scale closed-flotation circuit proved that the collector can effectively recover anglesite from zinc-leaching residues (ZLRs). This work sheds new light on flotation of anglesite, providing a significant contribution to understanding of anglesite flotation and its application for disposal of ZLRs.
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