1. Introduction. High-intensity magnetic separation (HIMS) as an integral part of sorting paramagnetic materials has been widely used in different areas [1, 2], such as beneficiation of minerals [3], desulfurization of coal [4], non-metal ore purification [5], waste treatment [6], and nuclear fuel reprocessing [7].Over the span of decades, a …

In this paper, a sample from Tange-zagh iron mine was characterized by gravity and magnetic separation methods. The mineralogical studies showed that hematite and goethite are the main iron-bearing minerals with insignificant amounts of FeO. The results indicated that spiral separation yields higher separation efficiency than …

During the SMR process, weakly magnetic hematite and siderite in the iron ore tailings were converted to strongly magnetic magnetite with an average magnetic conversion rate of 81.71%.

DOI: 10.1016/J.MINPRO.2013.07.006 Corpus ID: 96573193; Effects of sodium salts on reduction roasting and Fe–P separation of high-phosphorus oolitic hematite ore @article{Li2013EffectsOS, title={Effects of sodium salts on reduction roasting and Fe–P separation of high-phosphorus oolitic hematite ore}, author={Guanghui Li and Zhang …

In China, most reserves of rich iron ores have now been depleted and sustainable development of low-grade iron ores has become a critical discussion topic in the mining industry today. The aim of this study was to evaluate the applicability of beneficiating a low-grade, hematite-magnetite ore (assaying 18.64% Fe) for subsequent utilization. …

The performance of floc magnetic separation (FMS) has been compared with wet high-intensity magnetic separator (WHIMS). This study was performed on low-grade iron ore slime contained 59.58% Fe with…

Each process has its advantages and disadvantages when separating limonite ore. Gravity separation offers a low-cost method but may need help recovering fine particles or efficiently removing impurities.Magnetic separation is highly selective but requires large equipment and may produce tailings with lower iron grades.Flotation has …

Rare earth roll magnetic separators (RERMS) and induced roll magnetic separators (IRMS) are the simple and efficient dry high-intensity magnetic separators …

DOI: 10.1016/j.mineng.2020.106483 Corpus ID: 225288018; Assessing the performance of a novel pneumatic magnetic separator for the beneficiation of magnetite ore @article{Baawuah2020AssessingTP, title={Assessing the performance of a novel pneumatic magnetic separator for the beneficiation of magnetite ore}, …

To enhance effective use of resources, we use magnetic separation method on the experiment study of a refractory oolitic hematite ore. Research showed that: the grade of raw ore (TFe) was 47.44%, and magnetic iron grade (MFe) was 28.59%. Through magnetic separation experiment, three-step magnetic separation process was …

DOI: 10.1016/j.powtec.2024.119557 Corpus ID: 268025268; Development of a centrifugal dry magnetic separator for separation of fine magnetite ore @article{Yi2024DevelopmentOA, title={Development of a centrifugal dry magnetic separator for separation of fine magnetite ore}, author={Fan Yi and Luzheng Chen and …

Recent pilot testing conducted by Zhong demonstrated the production of hematite ore powder with an impressive overall recovery rate of 85.61% by employing …

This study investigates the removal of silica, alumina and phosphorus as impurities from Sanje iron ore using wet high-intensity magnetic separation (WHIMS). Sanje iron ore contains low-grade hematite ore found in Nampundwe area of Zambia from which iron is to be used as the feed in the steelmaking process.

As one of the most effective physical separation techniques, high gradient magnetic separators (HGMS) have been widely used for sorting essential metal ores, such as hematite, limonite, ilmenite ...

The typical processing methods include gravity concentration [13,14], magnetic separation [15, 16], froth flotation [17][18][19], and their combinations such as low-intensity magnetic separation ...

The most important pre-concentration technique for iron ores, including hematite, siderite and limonite, is magnetic separation based on the appreciable …

Magnetic separation is the most efficient separation method of these technologies. Modern magnetic separators are capable of processing up to 500 t ore/h per unit at a very low operating cost (0.3–0.5 kWh power and 2 m 3 recyclable water/t feed ore). Flotation has the advantage of good selectivity, but often it has much higher operating …

The weak magnetic-strong magnetic separation method is mostly used for the treatment of magnetite-hematite mixed ore. After the weak magnetic separation tailings are concentrated, strong magnetic roughing and sweeping are carried out, and the strong magnetic rough concentrate is concentrated and selected by a strong magnetic …

This study focuses on the development of a novel pneumatic dry high-intensity magnetic separator (PDHIMS) (maximum magnetic induction of 2 T) to enhance the efficiency of separating hematite ore fines. Force analysis of the novel separator demonstrated that it can potentially reduce the lower size limit of hematite dry …

Oolitic hematite ore with high-phosphorus content is currently recognized as one of the most refractory iron ore resources in the world. The high-phosphorus content and unique structure of the oolitic hematite ore make it difficult to be beneficiated. ... The process of direct reduction followed by magnetic separation has significance to the ...

DOI: 10.1016/j.jece.2023.110630 Corpus ID: 260190657; A pilot study on recovery of iron from sulfur-bearing hematite ore using hydrogen-based mineral phase transformation followed by magnetic separation

DOI: 10.1016/J.MINPRO.2017.01.007 Corpus ID: 102466541; Influence of process parameters of dry high intensity magnetic separators on separation of hematite @article{Tripathy2017InfluenceOP, title={Influence of process parameters of dry high intensity magnetic separators on separation of hematite}, author={Sunil Kumar …

The utility of magnetic separation in iron ore beneficiation has been widely reported earlier (Pradip, 1994, ... From the above literature body, it is evident that the application of wet high-intensity magnetic separator for hematite is common in practice whereas dry magnetic separation is not reported anywhere. Moreover, dry magnetic ...

Request PDF | On Dec 1, 2023, Zhicheng Hu and others published A novel pneumatic dry high-intensity magnetic separator for the beneficiation of fine-grained hematite | Find, read and cite all the ...

A novel low-intensity pneumatic planar magnetic separator designed to recover and concentrate fine-grained magnetite minerals is investigated and the …

Iron ore is the most important raw material in many natural raw materials used for iron and steel making in terms of tonnage and value. Magnetite (Fe3O4), hematite (Fe2O3), limonite (FeO(OH)·nH2O ...

The first SLon-2500 vertical ring-pulsating high gradient magnetic separator was designed and built up in 2006. It was installed at the tails dam of Hai Nan Iron Mining Company to recover iron ...

The multi gravity separator (MGS) is to improve the economic recovery of very fine heavy minerals and is considered the most effective method for treating the iron ore slimes, …

Fe–P magnetic separation results are imperfect when oolitic hematite pellet is reduced at 1050 °C for 120 min in the absence of additives, a magnetic concentrate with 85.1% Fe and 0.97% P was obtained from an oolitic hematite ore sample containing 48.96% Fe and 1.61% P, and the corresponding Fe recovery was 69.7%. By …

Iron is a common ferrous metal that has wide application in various fields, including metallurgy, chemical industry, and the manufacture of mechanical equipment [1,2].Hematite (α-Fe 2 O 3), an iron mineral that is widely distributed in nature, is an important raw material for iron smelting.It also has applications as a red pigment …