Comprehensive Utilization Study of Iron Tailings

2012 ◽  
Vol 178-181 ◽  
pp. 791-794
Author(s):  
Feng Zhi Dong
Keyword(s):  
Magnetic Separation ◽  
Resource Utilization ◽  
Field Intensity ◽  
High Intensity ◽  
Iron Ore ◽  
Low Grade ◽  
Total Recovery ◽  
Comprehensive Utilization ◽  
Low Intensity ◽  
Iron Ore Tailings

It's is very effective using high intensity magnetic separation and low intensity magnetic separation to process magnetite tailings. The best fineness for separation is -0.045mm 85%. The concentrate contains Fe 67.86% under 0.2T field intensity. Processing the tailings twice under 0.5T field intensity, the concentrate contains Fe 55.06%.The total recovery is 53.72%. The study on low-grade iron ore tailings to recover iron achieves good results in improving resource utilization.

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

Low Grade of Kyanite Ore Beneficiation Experimental Research in Xingtai

2012 ◽  
Vol 602-604 ◽  
pp. 115-119
Author(s):  
Jin Xia Zhang ◽  
Qi Hui Dai ◽  
Li Nan Tian ◽  
Xing Guo Wang
Keyword(s):  
Chemical Composition ◽  
Magnetic Separation ◽  
Experimental Research ◽  
High Intensity ◽  
Raw Material ◽  
Low Grade ◽  
High Grade ◽  
Market Demand ◽  
Low Intensity ◽  
Mineral Constituent

As high-grade refractories raw material，kyanite is widely used and the market demand is increasingly greater. To identify the process mineralogical properties of kyanite from Heibei so as to provide a mineralogical basis for its chemical composition, mineral constituent，ores texture and structure and so on. The results show that: the kyanite Al2O3 21.50%, SiO2 52.87%, using high intensity magnetic separation-gravity separation-flotation folwsheet. Experiments show that, the grinding fineness of -200 mush 65%, with strong intensity magnetic separation, magnetic concentrate by shaking the low intensity magnetic separation，we can get magnetite, garnet, biotite and phlogopite four concentrates, strong magnetic ore tailings consolidated by a rocking bed mud thrown first, refined through flotation, won Kyanite concentrate grading about 56.11% at a recovery of 49.90%.

Experimental Research on Low Grade Copper-Bearing Magnetite in one Area

2011 ◽  
Vol 347-353 ◽  
pp. 157-162
Author(s):  
Jun Liu ◽  
Jiang An Chen
Keyword(s):  
Magnetic Separation ◽  
Experimental Research ◽  
Low Grade ◽  
Research Subjects ◽  
Flotation Process ◽  
Valuable Metal ◽  
Comprehensive Utilization ◽  
Iron Concentrate ◽  
Low Intensity ◽  
National Resource

Recovering valuable metal from tailings has always been one of national resource comprehensive utilization key research subjects. There are copper-bearing magnetite which contains 43.31% of iron and 0.21% of copper in some places. After grinding-low intensity magnetic separation-flotation process can get 68.87% of iron concentrate with recovery 64.39% and copper concentrate which contain copper 12.67% with recovery of 75.30%. The experiment results will provide an effective way to comprehensive utilize the resource in one area.

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].

A Combined Beneficiation Process to Recover Iron Minerals from a Finely Disseminated Low-Grade Iron Ore

2013 ◽  
Vol 634-638 ◽  
pp. 3273-3276
Author(s):  
Si Qing Liu ◽  
Min Zhang ◽  
Wan Ping Wang ◽  
Xiu Juan Li
Keyword(s):  
Magnetic Separation ◽  
Iron Ore ◽  
Shaking Table ◽  
Low Grade ◽  
Gravity Concentration ◽  
Iron Minerals ◽  
Iron Concentrate ◽  
Low Intensity ◽  
Mineralogical Study ◽  
Basic Facts

In this research, a refractory iron ore is processed, according to the basic facts of mineralogical study. Mineralogy shows that the ore is characterized by the finely disseminated iron minerals with a small amount in the ore. Iron minerals in the ore are mainly hematite and magnetite. On the basis of the ore characteristic, a flowsheet of "stage grinding-low intensity magnetic separation-high intensity magnetic separation-gravity concentration by fine shaking table" was developed. An iron concentrate assaying 51.45% Fe at a recovery of 62.12% was obtained when the raw ore contains 18.61% Fe.

Beneficiation Test Research on High Grade Hematite-Limonite Ore

2013 ◽  
Vol 295-298 ◽  
pp. 3029-3033 ◽  
Author(s):  
Yan Hua Guo ◽  
Hui Xin Dai ◽  
Jun Long Yang
Keyword(s):  
Magnetic Separation ◽  
Iron Ore ◽  
Impurity Content ◽  
Silica Content ◽  
High Grade ◽  
High Gradient Magnetic Separation ◽  
Total Recovery ◽  
Iron Concentrate ◽  
Low Intensity ◽  
Ore Grade

The run of mine ore grade of Gan Shang Yan is 47.83%, iron ore grade is higher, but harmful element sulfur and impurity silica content is relatively high. This experiment using a simple process low intensity magnetic separation-high gradient magnetic separation, for the ultimate index for comprehensive grade of iron concentrate is 58.41%, at a total recovery of 80.85%, and obtain good experiment index, the harmful elements and impurity content can meet the standard.

Study on Process Concentrating of a Certain Low Grade Hematite Ore in Hebei

2013 ◽  
Vol 295-298 ◽  
pp. 3080-3084
Author(s):  
Su Juan Yuan ◽  
Zhi Yong Shen ◽  
Da Yong Zhang
Keyword(s):  
Magnetic Separation ◽  
High Intensity ◽  
Low Grade ◽  
Reverse Flotation ◽  
Test Results ◽  
Iron Concentrate ◽  
Low Intensity ◽  
Hematite Ore

It was determined through a large amount of beneficiation test to adopt stage grinding-low intensity magnetic separation-high intensity magnetic separation-reverse flotation as the principle beneficiation flowsheet for a certain hematite in Hebei. The test results indicate that we can get iron concentrate with a grade of iron 65.19% and a recovery of iron 63.17% respectively at iron concentrate 21.90%, the primary grinding of 67.54%-200 mesh and secondary grinding of 97.70%-200 mesh.

Experimental Research on High Intensity Magnetic Separation - Reverse Flotation of a Low-Grade Specularite Ore

2011 ◽  
Vol 304 ◽  
pp. 391-394
Author(s):  
Wei Zhi Wang ◽  
Jin Rui Zhang ◽  
Chun Guang Yang
Keyword(s):  
Experimental Research ◽  
High Intensity ◽  
Iron Ore ◽  
Low Grade ◽  
Grinding Process ◽  
Reverse Flotation ◽  
Magnetic Separator ◽  
Total Recovery ◽  
Iron Concentrate ◽  
Iron Grade

An iron ore contains specularite and hematite which are its main iron minerals and carbonates such as calcite which are its main gangue minerals. The ore is very apt to produce slime in the grinding process，leading to a deteriorated beneficiability. The rough iron concentrate can be obtained by using high gradient magnetic separator to discard tailings with the grinding fineness of 95% -0.074mm. Then the rough concentrate is treated by reverse flotation to produce a final concentrate with the operation recovery of 66.49% and the iron grade of 66.12%,and the total recovery of iron could reach58.70%.

Experimental Study on a Low Grade Sulfide-Oxidized Mixed Copper-Iron Ore in Anhui

2014 ◽  
Vol 543-547 ◽  
pp. 3785-3788
Author(s):  
Zhi Guo Zhang ◽  
Quan Jun Liu ◽  
Hong Xiao ◽  
Jin Cheng Ran
Keyword(s):  
Experimental Study ◽  
Copper Oxide ◽  
Magnetic Separation ◽  
Technological Process ◽  
High Intensity ◽  
Copper Sulfide ◽  
Iron Ore ◽  
Low Grade ◽  
Flow Sheet ◽  
Iron Grade

The copper-iron ore has grades of 0.58% Cu and 42.14% Fe in Anhui. According to test on raw ore, it has the characteristics of close intergrowth and fine dissemination size, which belongs to a refractory ore. The copper oxide distributes mainly at the perimeter of copper sulfide. According to the characteristics of the structure, a flow sheet of rough grinding and flotation of inter-locked particles is taken. This process can recover copper effectively, leading to the recovery of Cu increase to 70.05%.A combined technological process of high intensity magnetic separation-gravity separation is used to hematite, which achieves an iron grade of 62.34% in the final concentrate and a recovery of 65.49%.

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