Electrokinetic and flotation behaviors of hemimorphite in the presence of sodium oleate. (December 2015)

• Record Type: Journal Article
• Authors: Liu, Cheng; Feng, Qiming; Zhang, Guofan
• Is Part Of: Minerals engineering. Volume 84(2015)
• Page Start: 74
• Page End: 76
• Publication Date: 2015-12
• Subjects: Sodium oleate -- Hemimorphite -- Flotation; Mines and mineral resources -- Periodicals; Ressources minérales -- Périodiques; Mines and mineral resources; Periodicals; Electronic journals; 622
• DOI: 10.1016/j.mineng.2015.09.016
• Languages: English
• ISSNs: 0892-6875

Abstract

Highlights: Flotation of hemimorphite in the presence of NaOl is attempted. The zeta potential and FTIR of hemimorphite with collector is characterized. Collectors strongly affect the zeta potential of hemimorphite. Relationship between aggregation/dispersion with the flotation of hemimorphite using NaOl are described in the paper. Abstract: The electrokinetic and flotation behaviors of hemimorphite in sodium oleate solution were studied. The results of micro-flotation experiments indicate that hemimorphite shows good floatability at pH 4.0–9.0 and pH 11.0. The point of zero charge (PZC) of hemimorphite is pH 5.1. Zeta-potential and FTIR measurements indicate that the mechanism of sodium oleate adsorption on hemimorphite involves both chemical and physical interactions. Sodium oleate mainly reacts with the Zn on the hemimorphite surface. In acid/base pH range, the aggregation among hemimorphite particles which is more likely caused by hydrophobic interaction than electrostatic interaction improves hemimorphite's floatability.