scholarly journals Studies on Beneficiation of Manganese Ore through High Intensity Magnetic Separator

2020 ◽  
Vol 12 (1) ◽  
pp. 21-27
Author(s):  
Waheed Ur Rehman ◽  
Amin Ur Rehman ◽  
Faridullah Khan ◽  
Amir Muhammad ◽  
Mohammad Younas
Keyword(s):  
Magnetic Separation ◽  
Iron Ore ◽  
Manganese Content ◽  
Operating Conditions ◽  
Magnetic Fraction ◽  
Manganese Ore ◽  
Measurable Effect ◽  
Magnetic Separator ◽  
Maximum Value ◽  
Wet Sieving

Upgradation techniques like wet sieving and magnetic separation were used to evaluate the beneficiation potential of manganese ore. During wet sieving, manganese content in raw ore was upgraded from 27% to a maximum value of 38% in the concentrate with a recovery of 30%. Size classification was found to have no measurable effect on manganese grade in magnetic separation. In the unsieved ground ore, manganese content of 45% was achieved with a recovery of 23% and Mn/Fe ratio of 19% at a magnetic intensity of 8500 Gauss. At the same operating conditions, SiO2 was reduced from 56% in the raw ore to 30% in the magnetic fraction. So, wet sieving technique leads to a comparatively lower manganese grade but better recovery. Conversely, a magnetic separation technique produced higher manganese grade but relatively lower recovery. Blending of the upgraded manganese ore with high grade iron ore can be done to achieve the required Mn/Fe ratio.

scholarly journals Increasing efficiency of iron ore magnetic separation by using ultrasonic technologies

2021 ◽  
Vol 280 ◽  
pp. 08004
Author(s):  
Vladimir Morkun ◽  
Natalia Morkun ◽  
Vitalii Tron ◽  
Vladimir Golik ◽  
Arkadii Davidkovich
Keyword(s):  
Magnetic Separation ◽  
Iron Ore ◽  
Structural Parameters ◽  
High Energy ◽  
Material Surface ◽  
Technological Parameters ◽  
Magnetic Separator ◽  
Ultrasonic Methods ◽  
Dispersed Particles ◽  
Enhance Efficiency

The research is aimed at solving the topical problem of enhancing efficiency of iron ore magnetic separation by applying ultrasonic technologies to identify optimal technological parameters of magnetic separation, improving controlled structural parameters of a magnetic separator and pretreating slurry by highenergy ultrasound to clean the ore material surface from fine-dispersed particles of minerals and slime, as well as disintegrate ore aggregates fed to the magnetic separator. The main tasks involve identifying regularities of influence of slurry pretreatment by high-energy ultrasound on properties of iron ore magnetic separation, determining regulations of improving technological and controlled structural parameters of the magnetic separator using ultrasonic methods, developing and substantiating methods to enhance efficiency of iron ore magnetic separation by applying ultrasonic technologies.

scholarly journals The Influence of the Degree of Iron-Ore Enrichment on it’s Metallization Parameters

2013 ◽  
Vol 19 ◽  
pp. 89-95
Author(s):  
A.M. Amdur ◽  
A.E. Pelevin ◽  
Barnasan Purevsuren ◽  
Lkhamsuren Munkhtuul ◽  
A.L. Raznitsina
Keyword(s):  
Specific Surface ◽  
Magnetic Separation ◽  
Iron Ore ◽  
Total Content ◽  
Positive Influence ◽  
Reduction Reaction ◽  
Magnetic Separator ◽  
Almost All ◽  
Reaction Degree

Have been developed a scheme of enrichment (benification) of magnetite iron-ore concentrates with total content of Fet = 31% in ore at magnetic separator and obtained a superconcentrate with Fet = 69,50%. Experimentally determined that the reduction reaction degree of Fe by coal increases linearly with increasing of the content of Fe in concentrate. Certainly it has positive influence of decreasing the content of more difficult for reduction and poor magnetic iron containing components in the processing of wet magnetic separation (WMS). Almost all iron are in the form of good to reduce magnetite in the superconcentrates and enrichment of concentrate accompanying with growth of specific surface.

Improvement of the technology for processing siderite ore from the Bakal deposit

2021 ◽  
Vol 27 (4) ◽  
pp. 6-12
Author(s):  
Е. Degodya ◽  
◽  
N. Sedinkina ◽  
О. Shavakuleva ◽  
N. Gmyzina ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnesium Oxide ◽  
Magnetic Separation ◽  
Mass Fraction ◽  
Iron Ore ◽  
Raw Material ◽  
Magnetic Fraction ◽  
Suspended State ◽  
Dry Magnetic Separation ◽  
Siderite Ore

The Urals is one of the unique iron ore provinces of the world, including all the variety of iron ores. Siderite ores are represented by the Bakal group of deposits, in which siderite in mineralogical terms is not a chemically pure iron carbonate, but has an isomorphic admixture of magnesium and calcium, forming sideroplesite and pistomesite. The main iron ore mineral of the siderite ore of this deposit is an isomorphic mixture of iron, magnesium and manganese carbonates, which occur in different quantitative ratios. A scheme for ore dressing is proposed, which includes crushing to a size of 10-0 mm and dry magnetic separation in a suspended state at a magnetic field strength of 52 k/m. The study of dry magnetic separation of siderite ore was carried out on a suspended separator with a constant magnetic field and on an electromagnetic separator 138T-SEM. The resulting magnetic fraction is sent to the baking, subsequent crushing to a size of 2-0 mm and dry magnetic separation in the suspended state. To increase the mass fraction of iron and reduce the mass fraction of magnesium oxide, the magnetic fraction is sent for grinding and wet magnetic separation. The results of the experiments have showed that the enrichment using high-intensity dry magnetic separation of siderite ore from various sections of the deposit, the mass fraction of MgO decreased from 9.4-12.3% to 8.0-10.1%, and the mass fraction of iron increased from 28.8-33.4% to 31.4-40.8%. As a result, a product with a mass fraction of iron 59.3-60.1% and magnesium oxide 10.0-11.3% has been obtained. The developed enrichment technology allows us to obtain conditioned raw materials, which can serve as a promising raw material for PJSC Magnitogorsk Iron and Steel Works (PJSC MMK)

The Magnetic Separation Study on Flotation Concentrate Powder of Magnesite Ore

2013 ◽  
Vol 826 ◽  
pp. 140-143
Author(s):  
Qian Qian Wang ◽  
De Zhou Wei ◽  
Xiao An Li ◽  
Shu Juan Dai
Keyword(s):  
Field Strength ◽  
Magnetic Separation ◽  
Background Field ◽  
Operating Conditions ◽  
Magnetic Separator ◽  
High Gradient ◽  
Flotation Concentrate ◽  
Concentrate Yield ◽  
Separation Results

Iron in magnesite concentrate powder would seriously endanger the quality of refractories. Slon-500 vertical ring pulsating and high gradient magnetic separator and CRIMM DCJB70-200 laboratory electromagnetic splint VPHGMS were used to remove iron from magnesite flotation concentrate powder produced in Haicheng region. The magnetic separation results showed that using CRIMM DCJB70-200 laboratory electromagnetic splint VPHGMS is more suitable, and the most suitable operating conditions is the background field strength 641kA / m and bar spacing 2mm, at which time the magnesite concentrate yield was 91.25%, and the Fe2O3 content was 0.34%.

Research of the influence of material composition and size of iron quartzites of the Olenegorsk deposit on the results of dry magnetic separation

2020 ◽  
pp. 15-20
Author(s):  
S. V. Tereshchenko ◽  
◽  
D. N. Shibaeva ◽  
S. A. Alekseeva ◽  
A. A. Kompanchenko ◽  
...  
Keyword(s):  
Magnetic Separation ◽  
Structural Features ◽  
Magnetic Fraction ◽  
Magnetic Separator ◽  
Mass Fractions ◽  
Dry Magnetic Separation ◽  
Iron Quartzites ◽  
Increased Strength ◽  
Grinding Efficiency ◽  
Ferruginous Quartzites

On the example of a sample of ferruginous quartzites from the Olenegorskoye deposit, the possibility of preliminary concentration by dry magnetic separation (DMS) has been established. The mineralogical and petrographic studies have shown that, in terms of their textural and structural features and mineral composition, ferruginous quartzites may be divided into two types, differing in the amount of hematite included in their composition, which indicates the possibility of using DMS to generate the following three separation products: magnetite, hematite-magnetite, and rock. DMS with the use of a laboratory drum magnetic separator allowed selecting the upper size limit of 80 mm for lumps entering the separation. At the same time, 24.7 to 26.0 % of all waste and low-mineralized rocks with the mass fraction of Fetot of 4.51 to 6.07 % are transferred to the non-magnetic fraction during the separation of classes of –80+50 and –50+25 mm. For the size class of –25+10 mm, the yield and Fetot values are within the same limits. It has been shown that sulfidecontaining rocks and rocks of increased strength (with the strength coefficient of at least 23) are separated into the non-magnetic fraction. The strength of ferruginous quartzites does not exceed 20. This rock strength ratio confirms improved crushing and grinding efficiency. The possibility of separation of the magnetic fraction with the particle size of –80+25 mm into the following products has been established: the magnetite-hematite product (MF-1 + MF-2) with the mass fractions of Femagn 43.3% and Fehem 14.9 %, and the predominantly hematite product (MF-3 + MF-4) with the mass fractions of Femagn 1.1 % and Fehem 67.9 %.

scholarly journals Processing and production of pellets from poor-grade manganese-containing raw materials

2021 ◽  
Author(s):  
A. Tastanova ◽  
◽  
G. Abdykirova ◽  
S. Temirova ◽  
A. Biryukova ◽  
...  
Keyword(s):  
Magnetic Separation ◽  
Raw Materials ◽  
Manganese Content ◽  
Manganese Ore ◽  
Reduction Roasting ◽  
Processing Methods ◽  
Poor Grade ◽  
Valent State ◽  
Manganese Minerals ◽  
Technogenic Raw Materials

there is a review of current researches in the processing of poor-grade manganese raw materials. The variety of manganese minerals caused by the valent state of metal in compounds is demonstrated. Different processing methods for manganese-containing mineral and technogenic raw materials are considered. The process of extraction of manganese from ferruginous manganese ore using reduction roasting and magnetic separation, beneficiation technology of poor-grade manganese ore to improve the ratio of Mn/Fe; processes of beneficiation and sintering of fine ferruginous manganese ore with low manganese content; production of agglomerate from the concentrate of manganese poor-grade ore to produce ferrosilicon manganese are described. Results of the authors researches intended to obtain concentrate from manganese-containing sludge and to produce hardened pellets suitable for melting into ferromanganese on its basis using a new component of the binder are presented.

Application of Super Conducting High Gradient Magnetic Separation Technology on Resource Utilization of Low Grade Iron Ore

2014 ◽  
Vol 968 ◽  
pp. 168-172 ◽  
Author(s):  
Hai Tao Wen ◽  
Su Qin Li ◽  
Chang Quan Zhang ◽  
Wei Wei
Keyword(s):  
Magnetic Separation ◽  
Steel Industry ◽  
Iron Ore ◽  
Environmental Problems ◽  
Low Grade ◽  
Magnetic Separator ◽  
High Gradient Magnetic Separation ◽  
High Gradient ◽  
Separation Technology ◽  
Super Conducting

Nowadays, steel industry develops rapidly. However, lots of iron ore needed by China’s steel industry are imported from abroad. China’s dependence on foreign iron ore exceeds 70%. As a result, not only have large amounts of foreign currencies been spent but also a potential threat has been posed to the economic development of our country. Therefore, it is necessary for China to serve its economic production with lots of low grade iron ore. Since traditional beneficiation methods can cause serious environmental problems, High gradient magnetic separation(HGMS) is discussed in this paper. It can recycle tailings when disposing of low grade iron ore as well as solve the environmental problems caused by tailings and arising during the production process. Besides, high gradient magnetic separator can also raise the processing efficiency of low grade iron core. Therefore, high-gradient magnetic separation can not only increase economic returns but also protect ecological environment. With the maturity of super-conduction high gradient magnetic separation technology, super-conducting high gradient magnetic separation will produce better production effects.

Application Study of Flotation Column in Reverse Flotation of Magnetic and Hematite Mixed Iron Ore

2013 ◽  
Vol 457-458 ◽  
pp. 164-167
Author(s):  
Wei Zhi Wang ◽  
Li Ping Chen ◽  
Liu Bei Zhao
Keyword(s):  
Magnetic Separation ◽  
Recovery Rate ◽  
Iron Ore ◽  
Operating Conditions ◽  
Reverse Flotation ◽  
Application Study ◽  
Flotation Column ◽  
System Experiment ◽  
Ore Grade

This test used countercurrent bubble contact flotation column in reverse flotation to improve the grade of magnetic concentrate. By the tests of operating conditions and reagent system experiment, when the ore grade of concentrate after magnetic separation is 42.15%, after one roughing ,we can obtain the grade is 65.82% and recovery rate is 62.79% of the concentrate.

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．

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