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The in-situ leaching of uranium is influenced by deposit conditions, leaching environments, and various other factors, resulting in a low utilization rate for certain resources. To facilitate the rational development of these resources, a device for preparing leaching agents was designed to enhance the leaching process by increasing the concentration of sulfuric acid in areas where the resources is difficult to leach. The results show that the relative deviation in concentration remains below 1.5%, allowing for precise and stable preparation of acid either regionally or at individual boreholes. By using a 15~20 g/L sulfuric acid solution as a leaching agent, the unit uranium leaching rate of the refractory leaching uranium resources can be increased from 24.8% to 53.7%. The amount of sulfuric acid used and the increase in residual acid are only 11.1% of those used for strengthening leaching results in the entire mining area. This device achieves the leaching of the refractory leaching uranium resources with low consumption of sulfuric acid and has little impact on subsequent hydrometallurgical processes.
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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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