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To solve problems of poor selectivity, thick foaming and large reagent consumption in recovering spodumene with fatty acid collectors, anionic and cationic collectors were introduced to flotation tests of spodumene, feldspar and quartz. According to the results of pure mineral tests, a anionic-cationic collector can enhance the synergistic effect of reagents, and improve the grade and recoveries of concentrates. CFLH-18, a combination of anionic and cationic collectors, was introduced in a close-circuit flotation test of granite pegmatite-type spodumene from Jinchuan County of Sichuan Province, and a spodumene concentrate with Li2O grade of 4.62% was collected at 78.54% recovery. Compared with the on-site practice using fatty acid collectors, Li2O grade and recovery are improved by 0.10 percentage points and 5.93 percentage points. Meanwhile, the concentrate enrichment ratio is raised from 3.77 to 4.57.
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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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