To address the low flotation separation efficiency of chalcopyrite and pyrite, a novel thiol collector (930 agent) was adopted in flotation tests. Its selective adsorption mechanism was revealed by Fourier transform infrared spectroscopy analysis, and its effectiveness was verified through mineral flotation tests. The test results show that the novel environment-friendly and high-efficiency collector 930 agent, obtained by functional group structure reconstruction based on thiol collectors, increases the copper recovery of concentrate by 12.27% and 4.77%, the sulfur recovery of concentrate by 13.84% and 1.99%, and raises the sulfur grade of sulfur concentrate by 3.37% and 3.00% respectively, compared with the traditional collectors ethyl xanthate and butyl xanthate. The use of the new 930 collector optimizes the selectivity of copper-sulfur separation, provides a novel agent scheme with high selectivity and environmental friendliness for sulfide ore flotation separation, and is of great significance for reducing smelting costs and alkaline wastewater discharge.
| 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 |