PDF
Full
Outline
Single mineral flotation tests of chalcopyrite oxidized respectively in air and water were carried out under optimized conditions such as pulp pH and collector dosage. The mechanism for oxidation bringing effect to the floatability of chalcopyrite was studied by measuring contact angle and Zeta potential, and using infrared spectroscopy. The results show that the recovery of oxidized chalcopyrite with collector JXZZ is higher than those using DJHY and BXZX; the surface hydrophobicity of chalcopyrite oxidized in air and water can be improved; the area of CO2 absorption peak increases with the increase of air oxidation time, air oxidation temperature and water oxidation time, and all the three collectors can be chemisorbed on chalcopyrite. After oxidation, point of zero charge of oxidized chalcopyrite shifts positively, while the oxidization state of chalcopyrite in water is comparatively stable. It can be concluded that the floatability of chalcopyrite can be regulated by surface oxidation of this ore.
PDF
61
29
| 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
010-62199257
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
