Graphite ore collected from Hunan province, south China was characterized by chemical analysis, X-ray diffraction, and optical microscopy. Rougher and multi-stage flotation tests using a mechanical flotation cell and a flotation column containing an additional centrifugal force field were carried out to promote its grade and economic value. In rougher flotation, both the mechanical flotation ce...

Despite the importance of solid concentration in froth flotation, its effect on flotation kinetics and entrainment has rarely been studied. In this study, quartz hematite single-mineral systems as a function particle size were investigated using dodecylamine acetate collector. Kinetics modeling showed that Gamma distribution achieved best agreement with experimental data, whereas Classical Klim...

The influence of conditioning on the flotation of pyrrhotite in the presence of chlorite was investigated through flotation tests, sedimentation tests, and X-ray photoelectron spectroscopy (XPS) analysis. The flotation results show that chlorite slimes dramatically impair the flotation of pyrrhotite. Sedimentation and flotation tests reveal that conditioning can effectively remove chlorite slim...

The traditional hematite depressant starch has the disadvantages of poor solubility and high viscosity. In this study, a novel depressant, pullulan, with better performance flotation effect than was found. structure, molecular weight viscosity pullulan were determined for its characterization. results tests revealed that separation hematite-quartz by hematite-quartz. selective depression mechan...

In the reverse anionic flotation of phosphate ores using phosphoric acid, it is often suggested that a selective surface passivation minerals by calcium occurs. Several species have been proposed in literature for this passivation. study, in-situ Raman spectroscopy was used to monitor as function time interaction acid with calcite and fluorapatite at fixed pH 4.5 or concentrations order identif...

To investigate the flotation separation behavior of petalite and quartz, various methods were employed in this study. These included micro-flotation experiments, a contact angle analysis, zeta potential Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron (XPS) to explore mechanism modified ether amine reagent (L0-503) for quartz under weakly alkaline conditions. The test results...