separation of chromite from magnetite by magnetic separation

Separation of Chromite From Magnetite - Froth Flotation ...

I have been closely following the flow-sheet development at the FPX Baptiste project. Recently, they have successfully floated out a high grade nickel concentrate, leaving a decent magnetite by-product in the tail. But I suspect that a few percent of chromite is still mixed in with the magnetite

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Magnetic separation - Wikipedia

Magnetic separation is the process of separating components of mixtures by using magnets to attract magnetic materials. ... Chromite 10 - 16 Hematite 12 - 18 Wolframite (,) 12 - 18 ... (or magnetite) which can build up. The magnetic filter attracts all these bits of debris with a strong magnet as the water flows around it, preventing a build-up ...

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BENEFICIATION OF MAGNETITE RICH CHROMITE ORE WITH

Magnetic filters are fitted on the boiler’s pipework to collect magnetite from the circulating water before it has a chance to build up and lower the efficiency of the heating system. The water circulating around the heating system picks up bits of sludge (or magnetite) which can build up. The magnetic filter attracts all these bits of debris with a strong magnet as the water flows around it, preventing a build-up of sludge in the pipework or in the boiler.

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A discussion of magnetic separation techniques for ...

A discussion of magnetic separation techniques for concentrating ilmenite and chromite ores M. DOBBINS*, J. DOMENICO*, and P. DUNN* *Outotec (USA) Inc.—Minerals Processing, Physical Separation Magnetic separation has long been used to upgrade and beneficiate a wide variety of industrial minerals.

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Magnetic Separation - Mine Engineer.Com

But, there are two classifications of magnetic particles, strongly magnetic particles, such as iron and magnetite, and weakly magnetic particles, such as rutile, ilmenite, and chromite. Strong magnetic particles may be easily separated with a separator having a low intensity magnetic field of 400 -

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MAGNETIC SEPARATION OF CHROMIUM-CONTAINING

CHROMITE SEPARATION BY DRY MAGNETIC METHOD The fractions >100 µm and 100-163 mµ were used in the experiments of mineral processing of cbromite by the method of dry magnetic separation. Because the fraction 63-20 mµ consists mainly of limonite aggregates, it could not be processed by magnetic separation methods.

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Magnetic Separation - an overview ScienceDirect Topics

Magnetic filtration has been applied in place of lime treatment by Feng and coworkers (2000).Ultrafine magnetic particles are used as magnetic seeds. At a dosage of 0.5 g/L magnetite, all fine precipitate flocs can be rendered strongly magnetic. The mine water is treated with hydrogen peroxide (to oxidize ferrous iron and manganese), followed by the addition of lime and magnetite to raise the ...

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Magnetic separation - Wikipedia

Magnetic separation is the process of separating components of mixtures by using magnets to attract magnetic materials. ... Chromite 10 - 16 Hematite 12 - 18 Wolframite (,) 12 - 18 ... (or magnetite) which can build up. The magnetic filter attracts all these bits of debris with a strong magnet as the water flows around it, preventing a build-up ...

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MAGNETIC SEPARATION OF CHROMIUM-CONTAINING

CHROMITE SEPARATION BY DRY MAGNETIC METHOD The fractions >100 µm and 100-163 mµ were used in the experiments of mineral processing of cbromite by the method of dry magnetic separation. Because the fraction 63-20 mµ consists mainly of limonite aggregates, it could not be processed by magnetic separation methods.

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[PDF] A discussion of magnetic separation techniques for ...

A discussion of magnetic separation techniques for concentrating ilmenite and chromite ores @inproceedings{Dobbins2007ADO, title={A discussion of magnetic separation techniques for concentrating ilmenite and chromite ores}, author={M. Dobbins

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Concentration of chromite from the Kempersayi deposit by ...

This procedure consists of magnetic separation in two stages, i. e. at a magnetic field strength of 5000 and at 11000 oersted. The concentration of chromite ore from the Kempersayi deposit according to the above procedure permits a decrease of SiO2 (from 6.1 to 2.5% and CaO (from 1.3 to 0. 7%) and an increase of Cr2O3 (from 51.7–52.3 to 55.6%).

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Effect of selective coating of magnetite on improving ...

Apr 01, 2020  The separation of chromite from serpentine was studied using the magnetic coating method, and the Cr2O3 grade of chromite concentrate increased by 15% (Ucbas et al., 2014). Li et al. (2015) discussed the effects of magnetite on the selective surface magnetization of alumina/silica-bearing minerals, indicating that magnetic coating performed an ...

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US3935094A - Magnetic separation of ilmenite - Google Patents

Purification of ilmenite from chromite impurities by a two step magnetic separation wherein magnetically susceptible chromite is magnetically removed, followed by an oxidizing roasting of the ilmenite and a subsequent magnetic separation of ilmenite from the remaining chromite impurities to obtain an ilmenite with 1% or less chromite.

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Extraction of Chromium from Chromite Ore

Jul 22, 2017  Flotation using known methods, however, gave very poor results and will not be discussed further in this report. Tabling of the ore followed by upgrading the tabled chromite concentrate using magnetic separation to remove magnetite gave far superior results. The results and discussion of gravity-magnetic separation tests on the Auburn ore follow.

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Evaluation of Magnetic Separation Efficiency on a ...

magnetic separation. The application of SEM-based image analysis data to magnetic separation was inter alia carried out by Leißner et al. (2016b) [15]. The magnetic susceptibility of different minerals is one major determining parameter influencing the results of magnetic separation. The iron content in minerals shows a big

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CHAPTER-8 BENEFICIATION OF IRON ORES

Magnetic Separation is one of the physical concentration processes that utilizes the differences in magnetic properties of various minerals present in the ore body. The magnetic fraction may be valuable or gangue depending upon its end use in a particular process and so also the non-magnetic fraction, e.g., separation of magnetite (magnetic)

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Magnetic Separator - an overview ScienceDirect Topics

Luzheng Chen, Dahe Xiong, in Progress in Filtration and Separation, 2015. 2.1.4 Screen Magnetic Separator. Screen magnetic separator presents another magnetic technique for the cleaning of strongly magnetic minerals such as magnetite, based on the principle of magnetic

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How many metallic ores are concentrated by magnetic ...

Click here👆to get an answer to your question ️ How many metallic ores are concentrated by magnetic separation method from the given ores?Cassiterite, Pyrolusite, Rutile, Magnetite,Galena, Cinnabar

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Beneficiation of South African chromite tailings using ...

The chromite is associated with magnesium and as a result, it is expected that separation of chromite by magnetic separation will be easier and will occur at a higher magnetic strength as compared to the ferruginous ores [8]. Further studies need to target recovery of these fine chromite using high intensity magnetic separation. Mg Si Al Cr Fe Ca

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Five Chrome Extraction Process to Teach you the Chromite ...

Magnetic Separation. Because the chromite has a weak magnetism, ... There are mainly the following two cases: one is in the weak magnetic field, remove the ore in the strong magnetic separation of minerals (main magnetite), improve the ratio of ferrochrome. Another is to separate the gangue minerals and recover chrome ore (weakly magnetic ...

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Magnetic separation - CONCENTRATION OF MINERALS

Magnetic separation Classification of minerals on the magnetic properties: Strongly magnetic minerals: franklinite, maghemite, magnetite, pyrrhotite ( monoclinic ), titanomagnetite

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MAGNETIC SEPARATION OF CHROMIUM-CONTAINING

CHROMITE SEPARATION BY DRY MAGNETIC METHOD The fractions >100 µm and 100-163 mµ were used in the experiments of mineral processing of cbromite by the method of dry magnetic separation. Because the fraction 63-20 mµ consists mainly of limonite aggregates, it could not be processed by magnetic separation methods.

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Five Chrome Extraction Process to Teach you the Chromite ...

Magnetic Separation. Because the chromite has a weak magnetism, ... There are mainly the following two cases: one is in the weak magnetic field, remove the ore in the strong magnetic separation of minerals (main magnetite), improve the ratio of ferrochrome. Another is to separate the gangue minerals and recover chrome ore (weakly magnetic ...

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Magnetic separation - Wikipedia

Magnetic separation is the process of separating components of mixtures by using magnets to attract magnetic materials. The process that is used for magnetic separation detaches non-magnetic material with those that are magnetic. This technique is useful for not all, but few minerals such as Ferromagnetism/ ferromagnetic (materials strongly affected by magnetic fields) and paramagnetic ...

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[PDF] A discussion of magnetic separation techniques for ...

A discussion of magnetic separation techniques for concentrating ilmenite and chromite ores @inproceedings{Dobbins2007ADO, title={A discussion of magnetic separation techniques for concentrating ilmenite and chromite ores}, author={M. Dobbins

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Beneficiation of South African chromite tailings using ...

The chromite is associated with magnesium and as a result, it is expected that separation of chromite by magnetic separation will be easier and will occur at a higher magnetic strength as compared to the ferruginous ores [8]. Further studies need to target recovery of these fine chromite using high intensity magnetic separation. Mg Si Al Cr Fe Ca

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Magnetic Separation - Mine Engineer.Com

But, there are two classifications of magnetic particles, strongly magnetic particles, such as iron and magnetite, and weakly magnetic particles, such as rutile, ilmenite, and chromite. Strong magnetic particles may be easily separated with a separator having a low intensity magnetic field of 400 -

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Magnetic separation - CONCENTRATION OF MINERALS

Magnetic separation Classification of minerals on the magnetic properties: Strongly magnetic minerals: franklinite, maghemite, magnetite, pyrrhotite ( monoclinic ), titanomagnetite

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(DOC) Magnetic separation Hamza Achache - Academia

Since magnetite has a high magnetic susceptibility, a magnetic field of low intensity is used.The objective of separation is high for a magnetic separation process. The efficiency of our team permitted us to obtain a high recuperation, even if a mistake was made at the end of the experiment. As the result shows, the magnetic separation is 99.66 ...

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Evaluation of Magnetic Separation Efficiency on a ...

magnetic separation. The application of SEM-based image analysis data to magnetic separation was inter alia carried out by Leißner et al. (2016b) [15]. The magnetic susceptibility of different minerals is one major determining parameter influencing the results of magnetic separation. The iron content in minerals shows a big

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US4543178A - Dual intensity magnetic separation process ...

US4543178A US06/514,128 US51412883A US4543178A US 4543178 A US4543178 A US 4543178A US 51412883 A US51412883 A US 51412883A US 4543178 A US4543178 A US 4543178A Authority US United States Prior art keywords platinum ores sediment gauss magnetic Prior art date 1983-07-15 Legal status (The legal status is an assumption and is not a legal conclusion.

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Production of pelletizing concentrates from ...

The low-grade magnetite project mineral resource base is estimated at 476.1 Mt with 34.5% Fe (Kumba Iron Ore, 2013). Zandrivierspoort is a banded iron formation Production of pelletizing concentrates from Zandrivierspoort magnetite/haematite ore by magnetic separation by P. Muthaphuli* Synopsis

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Which of the following ores cannot be concentrated by ...

Magnetic separation based on differences in magnetic properties of the ore components. If either the ore or the gangue is attracted towards the magnetic field, then the separation is carried out by this method. For example, iron ores are attracted towards the magnet, hence, non–magnetic impurities can be separated from them using magnetic separation.

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Magnetic separation of ilmenite - Quebec Iron and Titanium ...

Purification of ilmenite from chromite impurities by a two step magnetic separation wherein magnetically susceptible chromite is magnetically removed, followed by an oxidizing roasting of the ilmenite and a subsequent magnetic separation of ilmenite from the remaining chromite impurities to obtain an ilmenite with 1% or less chromite.

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Recovery of Pt and Pd from PGM Mine Tailings by Magnetic ...

Concentrating chromite by magnetic separation can allow possible recovery of the PGMs into chromite product and further recovered by using NiS-FA process. The content of Pt and Pd in the tailings was 0.7 g/t and 0.2 g/t contained in mainly MgSiO 3 and MgCr 2 O 4 minerals. A dry

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