Full
Outline
To provide a basis for the feasibility evaluation of comprehensive utilization of a certain tungsten polymetallic mineral resource, detailed process mineralogy studies and preliminary beneficiability evaluations were carried out. Firstly, the mineral liberation analyzer (MLA), combined with various analytical methods such as microscopic identification, chemical analysis, X-ray diffraction analysis, was employed to investigate the chemical composition, material composition of the ore, as well as the key process mineralogy characteristics such as the output form, dissemination particle size and dissociation degree of the main target minerals. Then, according to the characteristics of the ore, the main mineralogy factors affecting the beneficiation effect were discussed and analyzed. It was recommended to adopt the beneficiation process flow of "pre-concentration and discarding waste-gravity separation and enrichment-selection and quality enhancement-fine mud returning to the circuit-comprehensive recovery of sulphide ores". The process of "flotation-shaking table gravity separation-centrifugal gravity separation" was simplified, and ore beneficiability tests were conducted. The results show that the original ore belongs to granite-type disseminated tungsten ore containing molybdenum and bismuth. The main valuable component is WO3, with a content of 0.31%. The main associated components are Mo and Bi, with contents of 0.043% and 0.024%, respectively. Sulfide ores with Mo grade of 1.40% and Bi grade of 0.79%, and recovery of 97.51% and 84.67%, respectively, and tungsten concentrate with WO3 grade of 69.00% and recovery of 76.58% are obtained by beneficiability tests. The total recovery rate of WO3 is 87.04% if the WO3 in fine mud rough concentrate and tungsten intermediate ore is included in the calculation. The test verifies that the ore has good beneficiability and recovery value.
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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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