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Outline
To achieve efficient flotation of azurite, the influence of a new sulfurizing agent, GX2, on the sulfide flotation behavior of azurite was investigated through single-mineral flotation tests, with comparisons made to sulfurizing agents such as ammonium sulfate and sodium sulfide. Testing methods including Zeta potential measurement, contact angle tests, adsorption capacity tests, and X-ray photoelectron spectroscopy analysis were employed to explore the sulfidation mechanisms of different agents on azurite. The results indicate that GX2 exhibits superior sulfidation performance compared to the other two agents. Under conditions of pulp pH of 9, sulfidation time of 2 min, dibutyl dithiophosphate dosage of 120 mg/L, GX2 dosage of 20 mg/L, and collector oil dosage of 80 mg/L, the maximum flotation recovery rate of azurite can reach 94.37%. GX2 acts on the surface of azurite through chemical adsorption, enhancing its electronegativity and forming hydrophobic Cu—S components on the mineral surface, thereby increasing the adsorption capacity of collectors and improving the sulfidation effect on the mineral surface.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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