The research is aimed at study of the probable recovery of iron from the tailings of the Olcon mining company located in the north-western Arctic zone of Russia. Material composition of a sample from a tailings dump was analysed. The authors have developed a separation production technology to recover magnetite-hematite concentrate from the tailings. A processing flowsheet …
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In response to this challenge, several metallurgical technologies have been developed to recover Fe from LTLNO for high-value utilization [15], [16], [17].For example, Bai et al. proposed a mineral phase transformation technology to convert hematite into strongly magnetic magnetite with the iron grade and recovery of 52.00 % and 80.11 %, respectively [18].
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and recover > 65 % iron bearing particles from the tailings. More importantly, the corresponding tail contained ~45% Fe. It was concluded that this novel process may be effectively used to recover iron values from low-grade hematite tailings. Key Words: Iron ore slime, Fe Recovery, HGMS,Yield & Noamundi 1. INTRODUCTION
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Iron tailings are a common solid waste resource, posing serious environmental and spatial challenges. This study proposed a novel hydrogen-based reduction roasting (HRR) technology for the processing of iron tailings using a combined beneficiation and metallurgy …
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The research is aimed at study of the probable recovery of iron from the tailings of the Olcon mining company located in the north-western Arctic zone of Russia. Material composition of a sample from a tailings dump was analysed. The authors have developed a separation production technology to recover magnetite-hematite concentrate from the ...
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During the processing of iron ores, a large quantity of low-grade tailings containing abundant iron values in fine particle size range is produced. A novel HGMS-Centrifuge process is proposed …
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The recovery of sulfur from lead-zinc tailings was examined in the previous study, and the results indicated that the technology for the recovery of sulfur from lead-zinc tailings was feasible using oxidation roasting (Lei et al., 2015). ... 2015). The main mineral in the RM is hematite, which was generated from the oxidation of pyrite in the ...
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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 performance compared with the …
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E. Darezereshki, A.K. Darban, M. Abdollahy, Synthesis of magnetite nanoparticles from iron ore tailings using a novel reduction-precipitation method, J. Alloys Compd., 749, …
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Recovery of magnetite-hematite concentrate from iron ore ... concentrate with total iron content of 65.9% and recovers 91.0% of magnetite and 80.5% of hematite from the tailings containing 20.4% ...
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Researches on recycling of iron tailings in different fields have been studied over the years, such as using iron tailings to prepare concrete [6], iron tailings as cemented paste backfill for underground stopes [7, 8], recovering rare earth elements minerals [9], development a ceramic colorant for glazes [10], recovering TiO 2 [11], and as the ...
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The results of this investigation indicate that PHGMS is effective for recovering fine hematite from the tailings and greatly improved the separation performance compared with the …
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The proposed technology allows recovering hematite concentrate with a hematite iron content of 54.5% and recovery of 75.4% from current tailings containing 5.2% of hematite iron.
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This study aimed to recover high-purity silica from hematite tailings (HTs) using superconducting high-gradient magnetic separation (S-HGMS) technology. This process involved converting silica into a silicone-rich concentrate and subsequently employing a fluorine-free mixed acid to leach the silicon-rich concentrate to remove impurities and ...
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This article proposes a flotation circuit to recover apatite from tailings generated by mining in Chile, based on laboratory tests and using the "Split Factor" method. The iron tailings were ...
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In NAPL residue, the iron content ranges from 53.12 wt% to 59.20 wt% in the form of hematite, which is considered as the primary input for iron making. The other elements contain Cr, Al, Si and Mg. ... Fig. 6 displays the XRD patterns of magnetic concentrates and tailings at different temperatures. In ... The recovery rate gets 99.5% from 65.88 ...
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To manage tailings, a Wet Tailing Processing (WTP) line constructed at Gol-e-Gohar Iron Ore Company to recover the magnetite. The dominant crystalline phases in these tailings were …
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The raw material (RM) used in this study was the roasted lead-zinc tailings, which was the cinder obtained from the oxidation roasting of the lead-zinc tailings in the Fankou lead and zinc mine (Lei et al., 2015).The main mineral in the RM is hematite, which was generated from the oxidation of pyrite in the lead-zinc tailings.
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1. Introduction. In the Sudbury area, up to 100 millions metric tonnes of pyrrhotite (Fe 1-x S) tailings have been disposed, with an estimated average grade around ~0.8 wt% Ni (Peek et al., 2011).Considering the constant remediation required to prevent acid mine drainage caused by pyrrhotite oxidation, the potential for recovering the Ni value has been considered …
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Offer a new raw material for building industry and a more effective resource recovery alternative. Make fired bricks using a kind of high iron and low silica hematite tailings as main raw materials. The produced tailing bricks were well conformed to Chinese Fired Common Bricks Standard (GB/T5101-2003). The research provided an attractive method for energy saving and …
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The research is aimed at study of the probable recovery of iron from the tailings of the Olcon mining company located in the north-western Arctic zone of Russia. Material composition of a sample from a tailings dump was analysed. The authors have developed a separation production technology to recover magnetite-hematite concentrate from the ...
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Mine tailings deposits are often overlooked by the industry, posing significant environmental challenges due to chemical hazards and inadequate maintenance. Nevertheless, such mineral deposits hold considerable economic potential for processing, and the adoption of innovative technologies may also address critical chemical and physical stability issues. …
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It can be seen from Fig.2, it achieved an effective recovery for the fine magnetic hematite from tailings; as the magnetic induction increased, the iron recovery rapidly increased and then ...
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Request PDF | Performance of a full-scale continuous centrifugal concentrator in reconcentrating fine hematite from tailings | The study aimed to evaluate the separation performance of a full ...
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During the processing of iron ores, a large quantity of low-grade tailings containing abundant iron values in fine particle size range is produced. A novel HGMS-Centrifuge process is proposed to recover iron values from a low-grade hematite tailings. In this process, the tailings is effectively roughed with pulsating high pulsating high gradient magnetic separator to produce a relatively …
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Rare earth (RE) and iron minerals in tailings exhibit fine embedded granularity and are closely associated with silicates, carbonates, and other lode minerals, which are difficult to be recycled. Studies of these tailings led to some new processes of ore dressing, involving grinding, RE flotation, strong magnetic separation, and positive iron flotation. In this closed circuit process, …
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Recovery of iron from hazardous tailings using fluidized roasting coupling technology. Author links open overlay panel Zhidong Tang a b c, Peng Gao a b, Yanjun Li a b, ... The total iron content reached 10.60%, and the chief ferrous minerals in the tailings were hematite (Fe 2 O 3), magnetite (Fe 3 O 4) and carbonate (FeCO 3). (2)
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Fine hematite particles exist in the Fe-rich tailings after magnetic separation in Fig. S3, which indicated that S-HGMS was beneficial to separate the weakly magnetic fine particle from the tailings. ... Copper recovery from tailings through bioleaching and further application of bioleached tailings residue: comprehensive utilization of ...
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Iron ore tailings (IOTs) are a form of solid waste produced during the beneficiation process of iron ore concentrate. In this paper, iron recovery from IOTs was studied at different points during a process involving pre-concentration followed by direct reduction and magnetic separation. Then, slag-tailing concrete composite admixtures were prepared from high-silica …
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In this paper, the properties, mineral magnetic modification, and beneficiation of tailings from the central mining and processing plant in Kryvyi Rih, Ukraine, have been studied. Samples were investigated by X-ray diffraction, X-ray fluorescence, microscopy, and magnetization measurements. The beneficiation was conducted using magnetizing roasting …
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