Full
Outline
The eclogite-type rutile ore resources in China are widely distributed and abundant in reserves. However, most of the rutile ore belongs to primary ore, with low grade, fine embedded particle size, complex ore properties and small difference in surface properties between the rutile and gangue, which brings many challenges to mineral selection. At present, the process of rutile beneficiation is complex, with high production costs and long recovery cycles, resulting in difficulty in effectively developing and utilizing China's rutile resources. Regarding a low-grade eclogite-type rutile ore in Qinghai Province, an experimental study on short process technology for full particle flotation recovery was carried out. The results indicate that the short process technology for full particle flotation recovery has good adaptability to this mine. Under the conditions that the grinding fineness of－0.074 mm accounts for 59.52%, screening particle size of－0.013 mm, the dosage of sodium fluosilicate 700 g/t, the dosage of lead nitrate 300 g/t and the dosage of EM-OL 600 g/t, rutile concentrate with yield of 3.21%, TiO2grade of 61.70% and TiO2 recovery rate of 63.14% can be obtained by the flotation process of two roughing and four cleaning to separate the screened desliming raw ore, and rutile can be fully recovered and utilized. This process realizes the short-term recovery of rutile minerals, which can simplify the beneficiation process, save production costs, and be also conducive to subsequent re-election and upgrading.
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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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