Full
Outline
As an auxiliary collector, tributyl phosphate has lots of shortcomings, such as high sensitivity to process conditions, unstable foam, low recovery rate and high reagent consumption in cassiterite flotation of a concentrator in Yunnan. In order to solve these problems, a new type of auxiliary collector SN-F was developed. The adaptability of two auxiliary collectors under different slurry pH, flotation concentration, grinding fineness and aeration rate was compared and investigated through conditional and industrial experiments. The results show that SN-F performs the best when the slurry pH is 6–8 and the slurry mass concentration is 45%. The recovery effect of cassiterite adding SN-F under the condition of grinding fineness of －37 μm accounting for 72.11% is significantly better than that adding tributyl phosphate. The industrial test results show that SN-F can increase the cassiterite recovery rate by 10.69 percentage points, improve the concentrate grade by 0.63 percentage points, and reduce the reagent cost by 34.31%. The auxiliary collection capacity and foam stability are good, and the adaptability to complex slurry is stronger, providing an economical and feasible solution for the efficient separation of fine-grained cassiterite.
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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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