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Outline
In the leaching liquid system of a uranium deposit in Xinjiang, the content ofρ(Cl-) is high and the mineralization degree is high. When using traditional D382 weakly alkaline anion exchange resin to treat this system, the dynamic adsorption capacity of uranium is low (15~30 mgU/mL)and the uranium separation and enrichment efficiency is poor. This study systematically evaluated the adsorption performance of JH-1 macroporous weakly alkaline acrylic resin on the system. The results show that J H-1 resin has special tertiary amine functional groups and a macroporous skeleton structure, exhibitingexcellent selectivity for uranium complexes and
in CO2 +O2 neutral leachate. Its saturated adsorption capacity reaches 60 mgU/mL, which was 2.6 times higher than that of D382 resin. In the dynamic adsorption process, the adsorption efficiency of JH-1 resin for uranium reaches 98.85%, the leaching efficiency is 99%, and the uranium recovery rate is 82%. This resin effectively solves the problem of resin adsorption site competition and equipment scaling in high mineralization systems by suppressing the interference of competitive ions such as Cl- and
.It significantly reduces the consumption of raw materials such as hydrochloric acid and industrial salt, and reduces production costs by 23 000 yuan/tU, providing technical support for efficient development of sandstone uranium mines.
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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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