Effect of Hematite Concentrate on Iron Ore Pellet Quality

Kumar PS, Ravi BP, Sivrikaya O (2021) The study of pelletizing of mixed hematite and magnetite ores. Sci Sintering 51(1):27–38. Google Scholar Umadevi T, Sridhara KS, Rameshwar S (2021) Optimization of induration cycle for magnetite concentrate and its usage in pellet-making process designed for hematite concentrate.

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Reduction Roasting Followed by Pelletization Study of Concentrate …

The magnetite concentrate was further utilized for pelletization, where the pellets were tested for both green and indurated properties. The green properties of the magnetite pellet, such as green and dry compressive strength, were in the acceptance range and found to be 1.9 and 4.8, respectively. The optimization of induration temperature for ...

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Mineralogy of Magnetite Concentrate and Its Preparation for

JOM - A comprehensive investigation was undertaken on the mineralogy of ordinary magnetite concentrate to achieve ultra-pure iron concentrate. Various analytical …

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Reduction of chengde vanadium titanium magnetite concentrate …

In this study, vanadium titanium magnetite concentrate (VTM), obtained after magnetic separation, was used in the Chengde area. The chemical composition and particle size of VTM are presented in Table 1 and Fig. 1, respectively.Scanning electron microscopy (SEM) analysis (Fig. 2 (a)–2(c)) shows that the VTM in this area is characterized by poor vanadium …

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Magnetite Concentration Methods

Magnetite (composition Fe3O4) has a specific gravity ranging from 5.0 to 5.1, and is sufficiently heavy to permit of its concentration from gangue by specific-gravity methods, which have had an extensive application.

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Reduction kinetics of magnetite concentrate particles by …

our research work relevant to carbon monoxide reduction of the magnetite concentrate particles in order to predict the progress of the reduction reaction (with R2 about 0.98): [−Ln(1−X)] 1/ .078 = 3.27×10−3d− .871 P C 2.738 CO exp(− 2.438 ×105/RT)t ARTICLE HISTORY Received 3 May 2016 Accepted 18 December 2016 KEYWORDS Magnetite ...

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Vanadium Titanium Magnetite Concentrate, Calcium …

titanium magnetite concentrate powder was mixed with Ca(OH)2, MgO, and bentonite in proportion. The balls were made on an 800 mm 165 mm disc ball-making machine with an inclination angle of 48 and a speed of 23 r/min. The effects of particle size distribution (iron concentrate 0.074 mm, accounting for 50%, 60%, 70%, 80%, 90%, and

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SA's Whyalla steelworks hits green steel milestone with first …

South Australia's Whyalla, the site of the state's government-backed hydrogen hub, has begun producing a vital component used to make green steel: magnetite concentrate. The steelworks is owned by billionaire steel tycoon Sanjeev Gupta through his global company GFG Alliance. Gupta has described magnetite concentrate as "a critical enabler of our global …

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The role of thermal improvements in indurating machines for …

The scarcity of iron ore concentrate resources is a real fact, and a search for alternative resources seems to be unavoidable [1, 2].For many years, magnetite iron ore mines, containing high-sulfur content (up to 2.0%), were not very welcomed in steel industry; however, they are nowadays increasingly receiving attention as potential sources and promising …

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High-Quality Magnetite

The processed magnetite consistently yields premium grade concentrate between 65% and 70%, ideal for DRI production. Current estimates based on more than US$20 million of test drilling activity, suggest that our mines have the potential …

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A Study of Processing High-Grade Magnetite Concentrates …

There is a try to purify super high-grade magnetic concentrate to prepare raw materials for ferrite magnet of non-RE PMs. Beneficiation of a high-grade (68%) iron ore concentrate was …

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An Investigation into the Pelletizing Performance of Blends

Additionally, green balls prepared by replacing 25% of magnetite concentrate with hematite concentrate showed good compressive strength, while fired pellets met the requirements for high-quality pellets in a simulation of the grate-rotary kiln process . Thus, the substitution of magnetite with hematite concentrate in both industrial and ...

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Preparation of high-purity magnetite from iron ore concentrate

The results show that the recoveries of quartz and magnetite are 96.43 % and 0.63 %, respectively, with the magnetic amylopectin in the flotation of single minerals with dosage of 30 mg/L and pH 7. The concentrate could be obtained with an iron recovery rate of 99.99 % and TFe grade 69.55 % for the artificially mixture minerals.

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Pelletization of hematite and synthesized magnetite concentrate from …

The Fe contents of the hematite and the synthesized magnetite concentrate were found to be 64.22 and 63.80%, respectively. The influence of different factors on the respective physical, chemical, and metallurgical properties of the fired pellets, generated through both the routes, have been compared. The pellets prepared from the synthesized ...

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Iron ore magnetite processing

Magnetite concentrate is a higher-grade product than hematite and very desirable as a smelter feed. However, the caveat for this superior product is the requirement for more complex, and higher cost, beneficiation circuits.

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Efficient Extraction of Vanadium from Vanadium–Titanium Magnetite

Compared with the vanadium–titanium magnetite concentrate from Pan-xi and Cheng-de, China, it was unique for its characteristics of high grades of vanadium and titanium and a low grade of iron . The poor quality of the iron resulted in it being unsuitable for priority of the iron-making and indirect vanadium extraction processes; thus, it was ...

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Magnetite

Magnetite requires crushing, screening, grinding, magnetic separation, filtering and drying. The final product is a high iron grade magnetite concentrate (+65% Fe), with typically very low …

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Magnetite

It does this by estimating the potential value of magnetite concentrate to the steelmaker in the event that the maximum potential is realised by operating the blast furnace with a 100 per cent pellet burden.Under the conditions described, it was found that direct reduction (DR)-grade magnetite concentrate could command a price premium over 62 ...

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Preparation of high-purity magnetite from iron ore concentrate

This study focuses on ordinary magnetite concentrate and utilizes a process combining magnetic separation, flotation, and leaching based on its mineralogical …

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Producing magnetite concentrate via self-magnetization roasting …

In this work, a green self-magnetization roasting technology for producing magnetite was proposed without adding additional. The regulatory mechanisms of the main …

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Northern Iron's First Magnetite Shipment Marks New Era in …

Generation of export-quality magnetite concentrate; Sustainable approach to mine site remediation; The project is expected to inject significant economic activity into the region, with an estimated contribution of millions of dollars over its operational period. By employing 35 local workers, the project not only provides immediate employment ...

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Warrego magnetite ships to Asia

"The first shipment of 47,100 tonnes of magnetite concentrate shows how historical mining sites can be rehabilitated in a way that creates local jobs while driving economic benefits and long ...

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Making Iron Directly From Concentrate by Gaseous Reduction

The pilot flash reactor was equipped with 3 burners: a preheat burner, the main burner, and a plasma burner. The main burner was designed to make a swirling flow in the reactor. Swirl was introduced to increase the residence time of the magnetite concentrate particles, thus increasing the reduction degree.

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Effect of Magnetite Concentrate Particle Size on Pellet Oxidation

2.2. Experimental Method. The iron ore concentrate was screened into four size fractions using standard sieves, namely, >106 μm, 74–106 μm, 45–74 μm and <45 μm, which were used for subsequent experiments.The chemical composition, particle size distribution, and X-ray diffraction of iron ore concentrates with different particle size ranges were measured and …

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Our Product

Magnetite concentrate from Sino Iron, Cape Preston Concentrate, is a premium iron ore product with high grade and lower impurities such as alumina and phosphorus.Ideal for pellet making - a preferred feed in the steelmaking process – studies show Cape Preston Concentrate delivers lower carbon emissions at the energy-intensive ironmaking phase, compared to typical Pilbara …

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Optimization of Induration Cycle for Magnetite Concentrate and its

In order to utilize the magnetite resources in a current induration furnace, which is designed for hematite resources, detailed pelletization studies have been carried out to optimize the firing ...

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Efficient Removal of Impurities from Refractory Oolitic Magnetite

Oolitic magnetite concentrate is an upgraded product that was prepared by the authors from high-phosphorus oolitic hematite ore through a magnetization roasting–magnetic separation process. The detailed chemical compositions of the two ores are presented in Table 1. The iron grade of oolitic hematite ore is only 35.04%, which cannot meet the ...

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Pelletization of synthesized magnetite concentrate obtained by

The magnetite concentrate produced from magnetization roasting of BHQ iron ore followed by low-intensity magnetic separation has proven to be the promising technique and could act as an alternative to the conventional pelletization process. It has been observed despite the low iron content of the banded.

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Mineralization characteristics of pellets prepared by ultrafine

The reducing property of pellets prepared by ultrafine magnetite concentrate (UMC) and improving method were revealed. The results show that the reduction degree of UMC pellets is only about 56% compared with that of pellets prepared from ordinary iron ore concentrate with relatively coarse particle size, which is significantly lower than the general …

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Stockhead – Higher & higher – Which companies can

Fortescue Metals Group (ASX:FMG) has weathered a series of setbacks at its Iron Bridge magnetite development, but despite blowouts in its schedule and cost to ~US$3.5 billion (US$900m more than initially planned), the lure of producing 22Mtpa of 67-68% magnetite concentrate that would garner super premium prices has seen it stay the course.

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