Full
Outline
Based on beneficiation tests of a low-to-medium grade magnetite-hematite ore, a combined processing technique was developed, consisting of high-pressure roller grinding, preconcentration with low-intensity magnetic separator, staged grinding - staged separation and magnetic elutriation of preliminary concentrate, and high-intensity magnetic separation and gravity separation of preconcentration tailings. It is shown that the preliminary concentrate from preconcentration process is subjected to staged grinding and staged separation, followed by magnetic elutriation, resulting in a magnetite concentrate grading 70.57% TFe at 67.25% recovery, with total content of SiO2 and Al2O3 less than 3%. The tailings from preconcentration then go to flat-ring high-intensity magnetic separator followed by gravity separator, generating hematite grading 63.52% TFe at 16.61% recovery. The recovery from the whole process is totally 83.86%.
75
12
| 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 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62662699(Operation and Technical Support)
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
