Pyrite Magnetic Separation

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Recovery of iron from pyrite cinder by suspension …

@article{Li2023RecoveryOI, title={Recovery of iron from pyrite cinder by suspension magnetization roasting-magnetic separation method: Process optimization and mechanism study}, author={Wenbo Li and Shuo Wang and Yuexin Han and Zhidong Tang and Yahui Zhang}, journal={Separation and Purification Technology}, year={2023}, url={https://api ...

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Physical separation of iron ore: magnetic separation

Magnetic separation technology plays an important role in upgrading such low-grade iron ores, because the magnetic separation process possesses the combined advantages of large capacity and low operating cost, as well as being environmentally friendly. ... Typical harmful minerals in iron ore include pyrite, apatite, etc., which contain the ...

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Iron Removal from Low-Grade Pyrophyllite Ore by …

Owing to its unique properties, pyrophyllite is an economical alternative to many minerals in different applications. The presence of iron-bearing minerals in Saudi pyrophyllite hampers its industrial uses. The aim of this study was to examine the removal of iron from Saudi low-grade pyrophyllite ore using two approaches. The first approach involves dry high-intensity …

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Magnetic Separation

Magnetic separation is a physical separation process that relies on the different magnetic properties of components in a mixture. ... (HGMS) (Trindale et al., 1974, and Liu, 1982) is based on coal being diamagnetic (repulsed by a magnet), whereas pyrite is paramagnetic (attracted to a magnet). The magnetic susceptibility of pyrite is 0.3 × 10 ...

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Magnetic separations: From steel plants to biotechnology

Magnetic separation of pyrite (FeS 2) from coal for desulfurization is also a common process (Maxwell and Kelland, 1978). The weakly magnetic nature of pyrite, however, requires that the raw ore be pre-treated thermally to convert the pyrite (FeS 2, M s =0.3 emu/g) to more strongly magnetic pyrrhotite (Fe 7 S 8, M s =22 emu/g).

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Desulfurization mechanism of high-sulfur coal by heating …

Magnetic separation desulfurization technology is a new physical desulfurization technology before combustion. It has the characteristics of low energy consumption, simple treatment equipment, and a slight loss of heat value of coal. ... There are two possible reasons: first, when the temperature is higher than 600 °C, magnetic pyrite further ...

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SU1072909A1

A method for preparing pyrite-containing coals to magnetic separation by means of desulfurization, characterized in that, in order to increase the efficiency of the process by increasing the magnetic susceptibility of pyrite, desulfurization is produced by the flow of ozone at a content of 2-3 mg / m.

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Mechanism analysis of enhanced desulfurization of …

Fig. 8 (a) shows that very few magnetic pyrite particles are adsorbed to the cone tip at 25 s and that a large number of magnetic particles have been captured by the magnetic separation process up to 50 s, with no significant difference in the amount of adsorption until 100 s Fig. 8 (b) shows that the number of magnetic pyrrhotite particles ...

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6 Magnetic Separation

Wet separators are used to separate strongly magnetic material in finely ground mixtures, with the denser water medium holding the small particles apart for individual action by the magnetic field.

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