Full
Outline
When oleic acid is used as collector in winter production of a fluorite concentrator in Chengde, due to poor water solubility and dispersion of oleic acid, the collection capacity is insufficient and the low-temperature resistance is poor. It is necessary to heat the slurry to more than 20 ℃, resulting in high production cost and energy consumption. In order to solve these problems, a new type of low-temperature fluorite collector CK-1 was developed using oleic acid with different iodine values to sulfonate and compound-saponification-emulsification. After the application of collector CK-1, the recovery rate of fluorite concentrate increases by 0.77 percentage points compared with the original production index under the condition of normal temperature production in summer. In the case of slurry temperature of 12 ℃ in winter, the beneficiation index is similar to that of the original condition with slurry temperature of 25 ℃ in summer and oleic acid as collector, but the heating cost per ton of ore is reduced by 11.03 yuan, and the flotation without heating in winter is realized, and the economic benefit is remarkable. In the northern region of China, the annual heating cost of fluorite beneficiation in winter reaches tens of millions of yuan, so CK-1 has good application value in the northern region of China.
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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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