Home Journals Articles Updates About
CN
image
收藏切换
Preliminary Analysis of Causes of Higher Silicon Content in Iron Concentrate from Meishan Iron Mine and Countermeasures of Silicon Reduction
收藏切换
PDF
Zugang ZHANG, Xinyu QIAN, Xiangzhou YU, Jilong XU, Dengfeng ZHANG
Mining and Metallurgical Engineering | 2025, 45(5) : 104 - 107
Less
收藏切换
Mining and Metallurgical Engineering | 2025, 45(5): 104-107
• MINERAL PROCESSING •
Preliminary Analysis of Causes of Higher Silicon Content in Iron Concentrate from Meishan Iron Mine and Countermeasures of Silicon Reduction
Full
Zugang ZHANG, Xinyu QIAN, Xiangzhou YU, Jilong XU, Dengfeng ZHANG
Affiliations
  • Mining Branch of Nanjing Baodi Meishan Industry and City Development Co, Ltd, Baowu Resources Co, Ltd, Nanjing 210041, Jiangsu, China
Published: 2025-10-01 doi: 10.3969/j.issn.0253-6099.2025.05.018
Outline
收藏切换

In Meishan Iron Mine, the iron concentrate produced on the site has SiO2 grade more than 6.0%. Aiming at this problem, an experimental study was carried out based on the microscopic identification of different concentrate products by using a new process flow, in which the magnetic field intensity of low-intensity magnetic separation (LIMS) was reduced for roughing, and a process of regrinding and re-separation was added for the scavenging concentrate by high-intensity magnetic separation (HIMS). The effects of those technical transformation on the TFe grade of iron concentrate and the content of impurity SiO2 therein were explored. The results show that after such technical transformation, the LIMS can produce a concentrate grading 63.57% TFe and 3.37% SiO2 with corresponding recoveries of 72.79% and 12.94%, with a yield of 52.21%; while the HIMS can produce a concentrate grading 44.79% TFe and 9.07% SiO2 with corresponding recoveries of 17.20% and 11.67%, with a yield of 17.51%. This new flowchart can produce the concentrate grading 58.85% TFe and 4.80% SiO2 at corresponding recoveries of 89.98% and 24.61%, with a total yield of 69.72%. It is shown the SiO2 content in the total concentrate of Meishan Mine can be greatly reduced.

process flow  /  high-intensity magnetic separation (HIMS)  /  low-intensity magnetic separation (LIMS)  /  magnetite  /  iron improvement and silica reduction  /  magnetic field intensity  /  regrinding and re-separation
Zugang ZHANG, Xinyu QIAN, Xiangzhou YU, Jilong XU, Dengfeng ZHANG. Preliminary Analysis of Causes of Higher Silicon Content in Iron Concentrate from Meishan Iron Mine and Countermeasures of Silicon Reduction[J]. Mining and Metallurgical Engineering, 2025 , 45 (5) : 104 -107 . DOI: 10.3969/j.issn.0253-6099.2025.05.018
Appendix
Less
Year 2025 volume 45 Issue 5
PDF
46
21
Cite this Article
BibTeX
Article Info
doi: 10.3969/j.issn.0253-6099.2025.05.018
  • Receive Date：2025-04-25
  • Online Date：2026-03-18
  • Published：2025-10-01
Article Data
Affiliations
History
  • Received：2025-04-25
Affiliations
    Mining Branch of Nanjing Baodi Meishan Industry and City Development Co, Ltd, Baowu Resources Co, Ltd, Nanjing 210041, Jiangsu, China
References
Share
https://castjournals.cast.org.cn/joweb/kygczz/EN/10.3969/j.issn.0253-6099.2025.05.018
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
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
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
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