Physical separation of iron ore: magnetic separation

2022 ◽  
pp. 309-332
Author(s):  
Dahe Xiong ◽  
Liming Lu ◽  
Ralph J. Holmes
Keyword(s):  
Magnetic Separation ◽  
Iron Ore ◽  
Physical Separation

Research on Exploration of Mineral Processing for a Iron Ore

2015 ◽  
Vol 1094 ◽  
pp. 397-400
Author(s):  
Xian Xie ◽  
Zi Xuan Yang ◽  
Xiong Tong ◽  
Ji Yong Li
Keyword(s):  
Magnetic Separation ◽  
Calcium Oxide ◽  
Iron Ore ◽  
Mineral Processing ◽  
Low Grade ◽  
Iron Minerals ◽  
Iron Mineral ◽  
Ore Minerals ◽  
Separation Test

Iron ore minerals are mainly silicate-type iron minerals in raw ore, and its distribution rate was 51.93%; followed by magnetic iron, and its distribution rate was 36.81%; content and distribution rate of other minerals was very low; element grade of iron, phosphorus, sulfur, silica were 11.90%, 0.043%, 0.013% and 45.23%, the main gangue were silica and calcium oxide, recyclable iron minerals mainly is magnetic iron mineral. Due to the grade of iron of raw ore and the amounts of optional magnetite was relatively little, in order to investigate the optional of low-grade ore, weak magnetic separation test and weak magnetic separation tailings-strong magnetic separation test were put into effect.

Improvement of iron ore concentrate quality by gravity and magnetic separation at SSGPO JSC

2021 ◽  
pp. 81-86
Author(s):  
V. I. Grinenko ◽  
A. S. Opalev ◽  
P. V. Maevsky ◽  
I. V. Karpov
Keyword(s):  
Magnetic Separation ◽  
Iron Ore ◽  
Gravity And Magnetic ◽  
Iron Ore Concentrate

scholarly journals Improving the Quality of Ferruginous Chromite Concentrates Via Physical Separation Methods

Minerals ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 667 ◽  
Author(s):  
Sunil Tripathy ◽  
Y Murthy ◽  
Veerendra Singh ◽  
Saeed Farrokhpay ◽  
Lev Filippov
Keyword(s):  
Magnetic Separation ◽  
Chromium Content ◽  
Detailed Characterization ◽  
Physical Separation ◽  
Chromite Ore ◽  
Chromite Concentrate ◽  
Automated Mineralogy ◽  
Characterization Studies

The low chromium-to-iron ratio of chromite ores is an important issue in some chromite deposits. The value of the chromite ore is indeed dictated in the market by its iron, as well as its chromium content. In the present study, a chromite concentrate was reprocessed by gravity (spiral concentrator) and magnetic separation to enhance the chromium-to-iron ratio. Also, detailed characterization studies including automated mineralogy were carried out to better understand the nature of the samples. Enhancing the chromium-to-iron ratio was achieved by using advanced spiral separators which will be discussed in this paper.

Pilot Beneficiation about Deoxidized Samples of Bayan Obo Oxidized Iron Ore

2012 ◽  
Vol 454 ◽  
pp. 221-226 ◽  
Author(s):  
Peng Gao ◽  
Yue Xin Han ◽  
Yong Sheng Sun ◽  
Yu Fan Mu
Keyword(s):  
Magnetic Separation ◽  
Iron Ore ◽  
Ferrous Metal ◽  
Fine Fraction ◽  
Separation Process ◽  
Process Flow ◽  
Oxidized Iron ◽  
Separate Treatment ◽  
Bayan Obo ◽  
Process Characteristic

The composition of Deoxidized Samples of Bayan Obo Oxidized Iron Ore is complex with high content of residual reducing C, Fe phase in the RDP is ferrous metal what is hard and malleable resulting in pessimistic grindability. Gravity-magnetic separation process flow is adopted with C pre-rejecting, stage grinding (-0.074mm -57.18%, -0.074mm -85.66%) and coarse-fine fraction separate treatment base on RDP process characteristic. The final concentrate has 92.02% Fe with 93.27% Fe recovery, 94.18% Fe metallization which may utilize as rough materials for steelmaking and the final tailings has 15.10% REO with 97.15% REO recovery which may utilize as rough materials for REO concentration.

Extraction of Niobium from the Bayan Obo Tailings by “Flotation—Microwave Magnetic Roasting—Magnetic Separation”

2011 ◽  
Vol 314-316 ◽  
pp. 823-828
Author(s):  
Lei Wang ◽  
Jie Li ◽  
Bao Wei Li ◽  
Jun Wang
Keyword(s):  
Magnetic Separation ◽  
Iron Ore ◽  
Magnetic Intensity ◽  
Low Intensity ◽  
Whole Process ◽  
Bayan Obo ◽  
Iron Ore Concentrate ◽  
Roasting Time

In this paper, the method of “floatation—microwave magnetic roasting—low intensity magnetic separation” which aims to utilize the iron and Nb mineral in the Bayan Obo tailings was investigated. The results show that the method of “floatation—microwave magnetic roasting—magnetic separation” is effective and simple, and the recovery of iron and Nb in the whole process is up to 80% and 68% respectively. The step of microwave magnetic roasting is researched carefully, and the best magnetic roasting result is obtained at 650°C, and the roasting time is 10min.The best result of magnetic separation is obtained at the magnetic intensity of 220KA/m. Iron ore concentrate separated by magnetic separation can be used for iron making directly because the grade can reach about 62~64.4%. And the grade of Nb can reach up to 2.16%.

Analysis of Wet High-Intensity Magnetic Separation of Low-Grade Indian Iron Ore using Statistical Technique

2012 ◽  
Vol 47 (8) ◽  
pp. 1129-1138 ◽  
Author(s):  
S. I. Angadi ◽  
Ho-Seok Jeon ◽  
A. Mohanthy ◽  
S. Prakash ◽  
B. Das
Keyword(s):  
Magnetic Separation ◽  
High Intensity ◽  
Iron Ore ◽  
Statistical Technique ◽  
Low Grade

Optimal Recovery of Iron Values from a Low Grade Iron Ore using Reduction Roasting and Magnetic Separation

2014 ◽  
Vol 49 (12) ◽  
pp. 1927-1936 ◽  
Author(s):  
S. S. Rath ◽  
H. Sahoo ◽  
N. Dhawan ◽  
D. S. Rao ◽  
B. Das ◽  
...  
Keyword(s):  
Magnetic Separation ◽  
Iron Ore ◽  
Optimal Recovery ◽  
Low Grade ◽  
Reduction Roasting

Flotation to Recover Copper Minerals from a Low-Grade Copper-Bearing Iron Ore

2012 ◽  
Vol 549 ◽  
pp. 998-1001
Author(s):  
Si Qing Liu ◽  
Peng Li ◽  
Shu Ming Wen ◽  
Dian Wen Liu
Keyword(s):  
Magnetic Separation ◽  
Phase Analysis ◽  
Iron Ore ◽  
Processing Technology ◽  
Raw Material ◽  
Low Grade ◽  
Copper Concentrate

Large amount of sourrounding rocks in Jianshui China has been discarded for many years, and the “rock” is characterized by Cu-Fe polymetallic constituents and of low grade. According to the results of chemical and phase analysis as well as the mineralogy, a joint pocess of flotation and magnetic separation was proposed and used to process the ore. Flotation results show that the combined processing technology is efficient in utilizing the low grade rocks. A copper concentrate assaying 20.68% Cu at the recovery of 80.11% can be obtained, when the raw material assays 0.79% Cu.

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