In the magnetic separation of fine particles, magnetic forces must overcome the hydrodynamic drag forces but magnetic forces must be greater than the gravity forces for the coarse mineral particles. It has been shown that conditions conducive to wet magnetic separation prevail in the particle range of around 5–10 to 2000–3000 …

The separation of chromite ore with lowest particle size fraction was done using Mozley mineral separator followed by the magnetic separation of the sink product by magnetic separator.

Magnetic Separation Magnetic separation is carried out using Davis Tube Tester (DTT) as a magnetic separator under various parameters such as water flow rate, magnetic induction and sample rate. The sample is poured into the water-filled glass tube (2.5 cm diameter), set between two magnetic poles at 45 degree of the tube angle.

The applicability of both enhanced gravity concentration technique and magnetic separator for beneficiation of chromite from the magnetic tailings of …

The optimal magnetic separation condition is achieved as follows, when the current reaches 2.4 A and the particle size is above 150 μm, the percentage of chromium extracted from HCFS is the ...

Fine Sizes using Magnetic Carrier, Separation Science and Technology, 49:6, 946-956, DOI: 10.1080/01496395.2013.869602 ... Zeta potentials of chromite, magnetite, and serpentine were

Magnetic separation of chromite can be differentiated based on the ore type, i.e., magnesian chromite or ferrian type chromite. As the chromite ore is of magnesian chromite, magnetic separation is ...

The differences in magnetic susceptibility can be utilized to separate a valuable mineral from its gangue through the magnetic separation method. Similar to other materials, …

Pulsating high-gradient magnetic separation (PHGMS) of fine hematite from tailings was studied using a pilot PHGMS separator to investigate the possibility of its application in industry. The results of this investigation indicate that PHGMS is effective for recovering fine hematite from the tailings and greatly improved the separation …

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%).

In the present investigation, we attempt to characterize the chromite fine from the Sukinda deposit in India and to study the amenability of magnetic separation to enhance the …

A discussion of magnetic separation techniques for concentrating ilmenite and chromite ores (2007) Google Scholar Svoboda, J.: Magnetic Techniques for the Treatment of Minerals. Elsevier, Amsterdam (1987) Google Scholar Ezhov, A.M., Shvaljov, Y.B.: Dry magnetic separation of iron ore of the bakchar deposit.

Abstract: Conventional magnetic separation devices are widely used for the removal of tramp iron from a variety of feed materials and for the beneficiation of ferrous ores. These devices for separation of strongly magnetic materials employ a variety of mechanical designs. Recently developed high gradient magnetic separation devices extend the …

The physico-chemical interactions among minerals such as olivine, chromite and serpentine; the most commonly present ions in solution such as Ca and Mg; and flotation reagents such as EDTA and oleic acid were investigated. The study was conducted via release tests, electro-phoretic measurements and microflotation of selected minerals …

Chromite ore is geologically associated with gangue materials which have lower density compared to pure chromite (FeO.Cr2O3). Gravity separation techniques are very suitable for beneficiation of ...

Chromite recovery was studied using a magnetic carrier technology. Heavy media grade magnetite was used as the magnetic carrier. The effect of various reagents such as sodium oleate (NaOl) as a ...

The separation of chromite ore with lowest particle size fraction was done using Mozley mineral separator followed by the magnetic separation of the sink product by magnetic …

Magnetic separation, thanks to its advantages of large processing capacity, low operation cost, high efficiency and applicability, and environmental friendliness in comparison to other separation methods, can be widely considered for use in the field of mineral processing. ... However, this intermediate magnetite particle size between the micro ...

the magnetic separation method [15]. Specific gravity of chromite varies from 4 to 4.8 depends on grade and inclusions, which makes the gravity separation,

For the ores in which chromite occurs with magnetite, low ratio and grade problems appear. In such circumstances, gravity processes fail in producing saleable chromite concentrate due to the close densities of magnetite and chromite. ... 3.4 Magnetic Separation of Anka Chromite Ore In this operation, use was made of the cross-belt …

To fulfil requirements of mettalurgical grade 48% Cr 2 O 3 with Cr:Fe ratio 3:1 need the right beneficiation, one of them is using magnetic separator. Chromite sand …

Choice selection and application variation of physical beneficiation techniques usually employed on heavy minerals (HMs) depends greatly on mineralogy, composition, shape, particle size distribution, and physicochemical properties of the minerals. Recent advancements in the applications of HM products by modern science, …

It is quite obvious that low intensity magnetic separators are capable of removing magnetite particles from chromite concentrate and 0.1 T magnetic field strength is …

A considerable amount of ultrafine magnetite as the iron source will end up in the tailing dams since the magnetic separation process markedly drops as the particle size. Cationic reverse ...

Keywords: chromite, magnetite, spinel, magnetic separation, ... The tailing sample was beneficiated by hydrocyclone, tabling, wet high-intensity magnetic separation (WHIMS), and flotation in order ...

[6] Lu et al. [7] studied the separation of pentlandite from serpentine by using the magnetic coating, the mechanism of fine magnetite selective coated on the surface of pentlandite was ...

Magnetic separation of ilmenite from titanaugite was conducted by the selectively magnetic coating method in this study, and the mechanism of magnetite coating on ilmenite was investigated by ...

As a result, pentlandite particles were coated by magnetite fines and surface magnetism of pentlandite was enhanced to enable its separation from serpentine by the magnetic separation method. 4 Conclusions 1) Pentlandite could be separated from serpentine at pH 8.8 and a magnetic intensity of 200 kA/m, and by adding 5% …

Relevant case studies for the separation of ilmenite and chromite are then presented. The process development efforts undertaken for each case are described, and the …

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 …