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Outline
The main valuable elements of a copper-molybdenum ore in Pakistan are copper, molybdenum, gold and silver, with copper content of 0.55% and molybdenum content of 0.01% in the raw ore. The contents of associated gold and silver are 0.1 g/t and1.15 g/t respectively. The content of easily mudding gangue minerals such as sericite and chlorite in the ore is high, resulting in a low grade of copper concentrate. In order to solve the above problems, a new-type inhibitor CD-B was developed to inhibit mudding gangue minerals. The process flow of “rough grinding, three-stage roughing with tailings discharge, rough concentrate regrinding and recleaning” was adopted. A copper-molybdenum mixed concentrate with a copper grade of 26.76% and a molybdenum grade of 0.451% can be obtained. The copper recovery rate is 94.49% and the molybdenum recovery rate is 77.48%. The copper-molybdenum mixed concentrate contains 2.06 g/t gold and 32.66 g/t silver, with gold recovery at 40.17% and silver recovery at 55.38%, demonstrating good beneficiation indicators. The new-type inhibitor CD-B is a small-molecule organic compound, featuring zero toxicity, zero pollution, low reagent consumption, and belongs to a high-efficiency green environmental protection reagent. Compared with the conventional reagent of sodium silicate, CD-B can significantly improve the grade of copper concentrate. The consumption of CD-B is only 1/15 of that of sodium silicate, making it convenient for procurement, storage and use.
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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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