PDF
Full
Outline
Removal of iron from high silicon-aluminum ratio and high iron coal gangue using thermally activated enhanced—hydrochloric acid leaching process was studied. The effects of calcination temperature, calcination time, hydrochloric acid concentration, leaching temperature, liquid-to-solid mass ratio, and leaching time on the iron leaching rate were examined, and the process conditions were optimized through orthogonal experiments. The results show that under the optimized conditions of calcination temperature of 500 ℃, calcination time of 1 h, hydrochloric acid concentration of 20%, leaching time of 3 h, leaching temperature of 90 ℃, and liquid-to-solid mass ratio of 4/1, leaching rate of Fe can reach 94.25%. The method can efficiently remove iron from coal gangue while effectively enriching Si and Al elements, providing technical reference for the resource utilization of coal gangue.
PDF
445
193
| 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 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62199257
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
