Full
Outline
In response to the problems of low grade, fine embedded particle size, and difficulty in separating copper and molybdenum in a certain porphyry copper-molybdenum ore in Xinjiang, a principle process flow of “copper-molybdenum mixed flotation, concentrate regrinding and copper-molybdenum separation” was determined. Through single-factor condition tests, the key technical parameters of each flotation operation were optimized, and on this basis, a whole process closed-circuit test was conducted. The results show that the stage grinding and stage separation can effectively control the degree of dissociation of the target minerals and avoid the overgrinding of the easily muddled gangue minerals. The copper concentrate with Cu grade of 23.58%, Mo content of 0.046% and Cu recovery of 82.97%, as well as the molybdenum concentrate with Mo grade of 34.21%, Cu content of 0.96% and Mo recovery of 66.38% are obtained by the whole process closed-circuit test of copper-molybdenum mixed flotation with one roughing, three cleaning and two scavenging and copper-molybdenum separation with one roughing, seven cleaning and one scavenging. Effective separation and recovery of copper and molybdenum have been realized. The research results can provide a technical basis for the efficient development and comprehensive utilization of the copper-molybdenum mineral resources.
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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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