A review on the enrichment of iron values of low-grade Iron ore resources using reduction roasting-magnetic separation

2020 ◽  
Vol 367 ◽  
pp. 796-808 ◽  
Author(s):  
Subhnit K. Roy ◽  
Deepak Nayak ◽  
Swagat S. Rath
Keyword(s):  
Magnetic Separation ◽  
Iron Ore ◽  
Low Grade ◽  
Reduction Roasting

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

Biomass Reduction Roasting-Magnetic Separation of Low Grade Goethite

2015 ◽  
Vol 814 ◽  
pp. 235-240 ◽  
Author(s):  
Qiu Yue Wang ◽  
Yan Wu ◽  
Yong Huo Li ◽  
Xiang Yang
Keyword(s):  
Magnetic Separation ◽  
Iron Ore ◽  
Fossil Fuels ◽  
Hainan Island ◽  
Low Grade ◽  
Low Carbon ◽  
Reduction Roasting ◽  
Corn Straw ◽  
Biomass Fuels ◽  
Iron Concentrate

The average grade of iron ores in China is around 32%, about 10% lower than the world’s average level. In order to alleviate the demand of iron ore for steelmaking industries, it is urgent to develop a highly efficient, energy-saving, low-carbon and environment-friendly technology. The goethite ore from Northern Hainan Island was studied via reduction magnetization by pine, rice chaff, and corn straw biomass fuels. The magnetic properties and magnetic separation were discussed by optimizing the parameters of roasting temperature, roasting time, and the ratio of biomass fuels. The results show that we could obtain concentrated iron ore grade of pine roasting and magnetic separation grade of iron concentrate 61.64% with the recovery of 79.75% via pine fuel roasting, 61.75% with the recovery 80.16% via rice chaff, and 61.47% with the recovery of 81.28% via corn straw roasting. Thereby, we could deduce that biomass fuels for reduction roasting of low goethite ore is promising to substitute the traditional coal and coke fossil fuels.

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.

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

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.

scholarly journals Application of dry high-intensity magnetic separation in upgrading low-grade iron ore of Rouina deposit, Algeria

2020 ◽  
Vol 56 (1) ◽  
pp. 47-58
Author(s):  
A. Messai ◽  
A. Idres ◽  
J.M. Menendez-Aguado
Keyword(s):  
Magnetic Separation ◽  
High Intensity ◽  
Iron Ore ◽  
Size Fraction ◽  
Cement Industry ◽  
Raw Material ◽  
Low Grade ◽  
Iron Ores ◽  
Mineralogical Characterization ◽  
Recent Developments

The recent developments of steel and iron industries generated a huge consumption of iron ores which has attracted much attention for utilizing low-grade iron resources to satisfy this increasing demand. The present study focuses on the characterization and enrichment of the low-grade iron ores from Rouina deposit-Ain Defla-. Currently, the ore is used in the cement industry because it is considered a low-grade iron ore. After the sampling process, a physico-chemical and mineralogical characterization was carried out and the results revealed that the sample consists of hematite, limonite and goethite as major opaque oxide minerals whereas silicates as well as clays form the gangue minerals in the sample. The average grade of FeTotal, SiO2 and Al2O3 contents in the raw material collected from the mine of the case study are 30.85%, 23.12% and 7.77% respectively. Processes involving combination of classification, washing and dry high-intensity magnetic separation were carried out to upgrade the low-grade iron ore sample to make it suitable as a marketable product. The sample was first ground and each closed size sieve fractions were subjected to washing followed by drying than dry high intensity magnetic separation and it was observed that limited upgradation is possible. As a result, it was possible to obtain a magnetic concentrate of 54.09% with a recovery degree of 89.30% and yield of 62.82% using a magnetic field intensity equal to 2.4 Tesla at the size fraction [-0.125 +0.063 mm].

Magnetic separation studies for a low grade siliceous iron ore sample

2013 ◽  
Vol 23 (1) ◽  
pp. 1-5 ◽  
Author(s):  
Ranjan Kumar Dwari ◽  
Danda Srinivas Rao ◽  
Palli Sita Ram Reddy
Keyword(s):  
Magnetic Separation ◽  
Iron Ore ◽  
Low Grade
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