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.

Experimental Research on Mineral Processing Technique of a Brazilian Specularite

2012 ◽  
Vol 535-537 ◽  
pp. 742-745
Author(s):  
Wei Zhi Wang ◽  
Qing Mei Jia ◽  
Chun Guang Yang
Keyword(s):  
Magnetic Field ◽  
Magnetic Separation ◽  
Processing Technique ◽  
Mineral Processing ◽  
Gravity Separation ◽  
Laboratory Research ◽  
High Grade ◽  
Iron Concentrate ◽  
Low Intensity ◽  
The Magnetic Field

Laboratory research on the mineral processing technique of a specularite ore from Baxi was performed, while the processes including gravity separation, low intensity magnetic separation(LIMS) -high intensity magnetic separation(HIMS)-gravity separation was adopted. The run-of-mine ore was milled till the -0.074 mm range accounts for 50% and treated through a LIMS – HIMS process, with the magnetic field strength of LIMS being 95.52 kA/m and HIMS,1.2T. As a result, an iron concentrate grading about 67.58% at a recovery of 96.21% can be obtained, which are rather good metallurgical performances. The iron concentrate with high grade also could be beneficiated by table separation, but its recovery is lower than it obtained from intensive LIMS – HIMS dressing.

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.

Experimental Study on Magnetic Roasting of Low Grade Specularite

2012 ◽  
Vol 454 ◽  
pp. 189-193
Author(s):  
Li Mei Bai ◽  
Bo Liu ◽  
Yu Hao ◽  
Xiao Liang Zhang ◽  
Yu Xin Ma
Keyword(s):  
Steel Industry ◽  
Iron Ore ◽  
Low Grade ◽  
Paper Study ◽  
Iron Concentrate ◽  
Low Intensity ◽  
Self Sufficiency ◽  
Roasting Temperature ◽  
Chinese Steel Industry ◽  
Ore Grade

Along with the continuously rose of the iron ore price and the Chinese iron ore quantity demanded, Iron ore self-sufficient rate has become the bottleneck of Chinese steel industry development. In order to increase Chinese ore self-sufficiency rate, the paper study the xinjiang region low grade specularite. When the crude ore grade is 35%, the mass percent of reducing agent pulverized coal is 12%, roasting temperature is 800°C，roasting time is 50 min, milling fineness is 90% passing 0.074 mm and the magnetic induction is 84kA/m, after a low intensity magnetic separation, the iron concentrate can be got whose yield is 42.83%, grade is 62.04% and recovery is 79.26%.

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.

Beneficiation Test Research on Certain Iron Ming of Burma

2013 ◽  
Vol 316-317 ◽  
pp. 867-871
Author(s):  
Yan Hua Guo ◽  
Hui Xin Dai ◽  
Jun Long Yang
Keyword(s):  
Magnetic Separation ◽  
Total Recovery ◽  
High Gradient ◽  
Iron Concentrate ◽  
Good Experiment ◽  
Ore Grade

The run of mine ore grade of Burma is 47.83%. According to the nature of the ore for the corresponding process, and the conditions of the test to explore, abstain to use a combined flowsheet for low magnetic separation - spiral chute - high gradient magnetic. The ultimate index for comprehensive grade of iron concentrate is 57.26%, at a total recovery of 83.07%, and obtain good experiment index.

Experimental Research on the Iron Separation from an Ultra Poor Iron Ore

2012 ◽  
Vol 535-537 ◽  
pp. 746-749
Author(s):  
Wei Zhi Wang ◽  
Li Ping Chen ◽  
Chun Guang Yang
Keyword(s):  
Magnetic Separation ◽  
Iron Ore ◽  
Low Grade ◽  
Iron Recovery ◽  
Magnetic Separator ◽  
Iron Concentrate ◽  
Second Stage ◽  
Low Intensity ◽  
Two Stages ◽  
Titanium Magnetite

Test was made on separating iron from a ultra-low-grade vanadium titanium magnetite ore by a process of tailing discarding at a coarser size，staged grinding and staged low intensity magnetic separation. The results show that when the raw ore is treated by permanent dry magnetic separator with low intensity magnetic separation at 12～0 mm size，qualified tailings of about 20% yield can be discarded．The coarse concentrate is grounded in two stages. With the first stage grinding size being 45% -200 mesh and the second stage，75% -200 mesh，and then treated by two stage low intensity magnetic separation．As a result，an iron concentrate with a TFe grade of 65.80%and an iron recovery of 47.74%can be achieved．

Experimental Research on the Lean Magnetite of RongTian Mine Corporation by Single Magnetic Process

2013 ◽  
Vol 826 ◽  
pp. 29-33
Author(s):  
Zhong Hang Cheng ◽  
Ke Xu Yu ◽  
Tong Lin Zhao ◽  
Xiao Li Wang
Keyword(s):  
Magnetic Separation ◽  
Experimental Research ◽  
Fine Particles ◽  
Steel Production ◽  
Separation Process ◽  
Experimental Result ◽  
Low Intensity ◽  
Magnetic Process ◽  
Result Analysis ◽  
Ore Grade

In this paper, the mineral properties of the lean magnetite in RongTian mine corporation was studied, during which the analysis of the mineral properties, prelimenary separation on the lump mine, two-section grinding, one section fine screening and three-section low intensity magnetic separation process were carried out. The results showed that if the suitable mineral processing flowsheet is adapted, we can achieved such index:concentrate grade of 63.65%, Fe recovery of 47.12% based on the ore grade of 10.05%.. According to the experimental result analysis, most of the iron minerals could be used to support the steel production of LingGang Group.Single magnetic process proved to be an suitable and promising process to conduct the fine particles of lean magnitite.

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%.

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.

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