scholarly journals Laboratory test and analysis of recovery from separation of iron sand using magnetic separator

2021 ◽  
Vol 882 (1) ◽  
pp. 012015
Author(s):  
I Permatasari ◽  
C Palit ◽  
Subandrio
Keyword(s):  
Iron Ore ◽  
Magnetic Force ◽  
Current Strength ◽  
Raw Material ◽  
Iron And Steel Industry ◽  
Sand Mining ◽  
Magnetic Separator ◽  
Iron And Steel ◽  
Sand Material ◽  
A Current

Abstract The iron sand mining is a prevalent practice because such a material is a mineral with many uses, including as a raw material in the iron and steel industry. In mining, iron sand certainly carries other minerals as impurity minerals. Thus the iron sand needs a further processing to increase the content of the iron itself. The widely used method is using a magnetic separator since the iron ore is a material that is strongly attracted by magnetic force. In contrast, the impurity material is repelled by magnetic forces so that the separation of iron sand from impurities can be carried out properly. The purpose of this study is to increase the content of valuable minerals available in the iron sand material. The variables used in this study includes the strong electric current and the size of iron sand. This study obtained a maximum result at a material size of 100 mesh with a current strength of 5 amperes with the acquisition of concentrates as much as 165,189 grams and a recovery value of 65,041%.

Beneficiation Study on an Oolitic Hematite

2013 ◽  
Vol 690-693 ◽  
pp. 202-205
Author(s):  
Jie Sun ◽  
Jin Zhu Zhang
Keyword(s):  
Iron Content ◽  
Iron Ore ◽  
Phosphorus Content ◽  
Acid Leaching ◽  
Iron And Steel Industry ◽  
Iron And Steel ◽  
Potential Source ◽  
Roasting Temperature ◽  
The Magnetic Field ◽  
Grinding Time

The oolitic hematite with a lower iron content and a higher phosphorus content will be a potential source of raw iron ore for the Chinese iron and steel industry. The magnetization reducing roasted and magnetic separation is a practical beneficiation process. The results show that the iron content in the concentrate can be increased to 57.63% from 45.95%, the iron recovery up to 73.12%, when the parameters are as follows, the roasting temperature is 900°C, the residence time 70 min, the ratio of reducing agent 5%, the grinding time 7 min, and the magnetic field strength 0.15T. The phosphorus content in the concentrate can be reduced to 0.23% from 0.39% by means of acid leaching.

Study on the Reduction of Oolitic Hematite Ores in N2-CO Atmosphere

2014 ◽  
Vol 968 ◽  
pp. 198-201
Author(s):  
Guang Long Jin ◽  
Jin Zhu Zhang ◽  
Ben Jun Xu ◽  
Song Yang
Keyword(s):  
Carbon Monoxide ◽  
Steel Industry ◽  
Iron Ore ◽  
Direct Reduction ◽  
Iron And Steel Industry ◽  
Iron And Steel ◽  
Reduction Time ◽  
Potential Source ◽  
Maximum Value ◽  
Metallization Rate

The oolitic hematite will be a potential source of raw iron ore for the Chinese iron and steel industry. Up to now, the oolitic hematite have hardly been utilized effectively by any single traditional technology. The direct reduction may be a practical technology for the exploitation of oolitic hematite. The results show that the metallization rate of the HeZhang oolitic hematite increases with both the partial pressure of CO increase and the reduction time lasted, and the maximum value of the metallization rate is obtained at 35% carbon monoxide in the N2-CO atmosphere and 4h reduction time at 1050°C with 10% calcium oxide in the oolitic hematite. The diffusion may be the primary factor controlled the metallization rate in the later stage of reduction.

The Design and Application of Flux-Cored Strip for Surfacing

2013 ◽  
Vol 753-755 ◽  
pp. 363-366 ◽  
Author(s):  
Jun Sheng Sun ◽  
En Li Jiao ◽  
Hao Meng Wang
Keyword(s):  
Abrasive Wear ◽  
Steel Industry ◽  
Working Condition ◽  
Abrasive Wear Resistance ◽  
Raw Material ◽  
Iron And Steel Industry ◽  
High Deposition Rate ◽  
Material Transport ◽  
Iron And Steel ◽  
Deposited Metal

In this paper, a type of high-deposition-rate, low-dilution-rate and wide-welding-bead flux-cored strip which is easy to realize automatic surfacing was designed. Considering the working condition of high temperature and abrasive wear in the iron and steel industry, a kind of high-chromium iron surfacing flux-cored strip was designed. The effect of alloy elements on the microstructure and property abrasive wear resistance of deposited metal was investigated. The abrasion and heat resistant plate deposited by the flux-cored strip was carried out on raw material transport system in steel enterprises. The service life was significantly improved and the examination and repair time is reduced.

Study on Deep Reduction of Oolitic Hematite Assisted with Microwave Radiation

2014 ◽  
Vol 941-944 ◽  
pp. 2574-2577
Author(s):  
Zhi Hong Ma ◽  
Jin Zhu Zhang ◽  
Wei Li ◽  
Jing Chen
Keyword(s):  
Microwave Radiation ◽  
Residence Time ◽  
Steel Industry ◽  
Iron Ore ◽  
Iron And Steel Industry ◽  
Reduction Temperature ◽  
Iron Recovery ◽  
Iron And Steel ◽  
Potential Source ◽  
Metallization Rate

The oolitic hematite will be a potential source of raw iron ore for the Chinese iron and steel industry. Up to now, the oolitic hematite have hardly been utilized effectively by any single traditional technology. The deep reduction assisted with microwave radiation may be a practical technology for the exploitation of oolitic hematite. The results show that the metallization rate can be obtained to 88.91%, and the iron recovery up to 90.70% for the oolitic hematite with an iron content 51.19%, when the deep reduction parameters are as follows, the reduction temperature is 1050°C, the residence time is 45min, and the ratio of reducing agent is 24%.

scholarly journals The Prospects of Uganda’s Iron Ore Deposits in Developing the Iron and Steel Industry

2020 ◽  
Vol 08 (04) ◽  
pp. 316-329
Author(s):  
Muwanguzi J. B. Abraham ◽  
Rukezo Gift ◽  
Sebukeera Hennery ◽  
Guloba Asuman ◽  
Ajidiru Rita ◽  
...  
Keyword(s):  
Steel Industry ◽  
Iron Ore ◽  
Ore Deposits ◽  
Iron And Steel Industry ◽  
Iron And Steel ◽  
Iron Ore Deposits
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