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Aluminum was extracted from fly ash by (NH4)2SO4 roasting activation—sulfuric acid leaching method. The effects of liquid volume/solid mass ratio, reaction temperature, reaction time and sulfuric acid concentration on the leaching rate of aluminum were investigated. The kinetics of acid leaching process of clinker was studied. The results show that the leaching rate of aluminum is 84.64% under the conditions of liquid volume/solid mass ratio of 8/1, reaction temperature of 90 ℃, reaction time of 120 min and sulfuric acid concentration of 20%. The leaching kinetic formula is $1-{(1-x)}^{\frac{1}{3}}$=6. 033 93${e}^{\frac{-22.045 4}{RT}}$t, and the reaction activation energy is 22.045 4 kJ/mol.
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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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