What Are The Uses Of Iron Ore Tailings

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Evaluation of iron ore tailings as replacement for fine aggregate in

Iron ore tailings were also used in other concrete applications. For example, Das et al. [13] studied the use of IOT to develop ceramic tiles and their study showed, that tiles produced at a maximum of 40% of IOT were superior in terms of scratch hardness and strength, compared to European standard specifications.

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A new approach for recovering iron from iron ore tailings …

Iron ore tailings obtained from the Jiuquan Iron and Steel Corporation in Gansu Province of China were used for the experiments. The iron ore tailings contained 21.51% Fe with a fine particle size of more than 75.00% passing 74 μm. There were many fully monomer dissociated gangue minerals and slimes present in the iron ore tailings.

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Iron Ore Tailings: Characterization and …

The main IOT applications discussed in this review are related to civil construction (aggregates for concrete, mortar, Portland cement additives), ceramic industry, …

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Use of iron mine tailing as fillers to polyethylene

Onitiri and Akinlabi 4 used 20% by volume of iron ore tailings as maximum amount in the investigated composites. HDPE is a polymer produced and consumed in large quantities worldwide.

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A Critical Review on Potential Use of Iron Ore …

Iron ore tailings can be considered as fully or partial replacement for natural aggregates, and parallelly, the scarce resources are protected by providing …

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Utilization of iron ore tailings with high volume in green …

Abstract. In this study, the potential of converting iron ore tailings (IOTs) into sustainable building materials was explored. IOTs were combined with fly ash (FA) and ground granulated blast-furnace slag (GGBFS) to prepare IOTs-based supplementary cementitious materials (SCMs). A concrete mix using IOTs-aggregate was also …

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(PDF) Sustainable use of mine waste and tailings with …

The literature shows the potential use of iron ore tailings as a replacement of natural fine aggregates. As natural sand reserves are depleting day by day, there is a need for substitution for ...

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An Aspergillus aculateus strain was capable of

1. Introduction. Iron ore tailings are abundant environmental contaminant from mining sites. World iron ore resources are estimated to be greater than 800 billion tons with more than 230 billion tons of iron (https://minerals.usgs.gov).Brazil is the largest producer of iron ore followed by China, Australia, India and Russia, with these countries …

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Iron ore tailings used for the preparation of cementitious …

The iron ore tailings used in the experiments contain more than 60wt% SiO2, and belongs to Anshan type with high silicon content. Table 1. Main chemical components of the iron ore tailings wt% SiO2 63.07 CaO 8.18 MgO 0.23 Fe2O3 13.82 Al2O3 5.6 Also available online at 356 International Journal of …

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The use of iron ore tailings obtained from the Germano …

The present work aims to identify the influence of the incorporation of iron ore tailings (IOT) obtained from the Germano dam in Brazil in substitution of sand fractions in concrete. The IOT was characterized through particle size distribution, specific weight, and mineralogical composition using x-ray diffraction (XRD).

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Stabilization of iron ore tailings with cement and bentonite: …

Iron ore tailings. A number of representative iron ore tailing samples were acquired from different locations of the dry tailing disposal areas (cf. Fig. 2).As illustrated in Fig. 3, the tailings were loosely dumped as piles; thus, their sampling did not necessitate any particular practice and merely involved filling bags with a hand shovel.A total number …

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Generation and Treatment of Iron Ore Tailings

ArcelorMittal. Abstract. Today many types of tailings are generated in the mining operations. Particularly, in the iron ore industry, although 99% of the generated tailings are composed by...

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Buildings | Free Full-Text | Application of Iron Ore Tailings …

With the advancement of global economic development and industrialization, a large number of industrial solid wastes such as tailings, industrial waste residue, and construction waste are produced in the mining and infrastructure construction processes [].Iron ore tailing (IOT) is an industrial solid waste produced after the extraction and …

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Potential use of iron ore tailings for binder production: A …

Abstract. Iron ore tailings (IOT) are generated in large-scale around the world and are stored in its slurry form generating risks of dam failure. The stabilization of this tailings by cementing agent provides a better mechanical capacity for stockpiling. Alkali-activated cement (AAC) can be used due to its versatility in the use of waste for ...

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Utilization of Iron Ore Tailings as Raw Material for Portland …

The cement industry has for some time been seeking alternative raw material for the Portland cement clinker production. The aim of this research was to investigate the possibility of utilizing iron ore tailings (IOT) to replace clay as alumina-silicate raw material for the production of Portland cement clinker. For this purpose, two kinds of …

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Recent practices in mine tailings' recycling and reuse

The formed iron oxides when separated from the thermally treated tailings can be used in various applications (e.g., pigments, additives). Thermal treatment is also effective in the magnetic separation of formed iron oxides by generating magnetic minerals (e.g., magnetite, maghemite) [68], [69], [70] .

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Geosciences | Free Full-Text | Recycling and Reuse …

Three different iron ore tailings (IOT) obtained from flotation processes of three mines located in the province of Quadrilátero Ferrífero, in the state of Minas Gerais, Brazil, were added to the above to …

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A Critical Review on Potential Use of Iron Ore Tailings as …

Presently utilization of tailings can be categorized into two—recovery of iron from tailings and its use as a raw material. Due to depletion of high-grade iron ores, maximum utilization of low-grade ore is taking place. Many beneficiations processes have been applied to increase the Fe% in the ore.

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(PDF) Iron Ore Tailings: Characterization and …

The main IOT applications discussed in this review are related to civil construction (aggregates for concrete, mortar, Portland cement additives), ceramic …

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Use of iron ore tailings as partial replacement for cement …

The use of iron ore tailings obtained from the Germano dam in the production of a sustainable concrete J. Clean. Prod., 278 ( 2021 ), Article 123929, 10.1016/j.jclepro.2020.123929

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Characterization of an Iron Ore Tailing Sample and …

The massive annual tonnage of iron ore tailings, plus the more demanding environmental policies after the catastrophic collapses of Fundão Dam in 2015 and Feijão Dam I in …

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Co-utilization of iron ore tailings and coal fly ash for porous

Iron ore tailings (IOTs) are an inevitable by-product produced during the beneficiation process of iron ore (Almeida et al., 2023). The rapid growth of mineral mining and ferrous metallurgy has led to an increase in the generation of IOTs. Approximately 0.40–0.60 tons of IOTs are generated in the treatment of 1.0 ton of iron ore.

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Damage evaluation of concrete using iron ore tailings as …

The stockpiling of IOTs occupies a large amount of land and seriously pollutes the ecological environment, moreover, the tailings dam is undoubtedly a great safety hazard [1,2,3].According to relevant statistics, the global steel industry consumes about 2 billion tons of iron ore, 1 billion tons of metallurgical coal, and 575 million tons of scrap …

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An evaluation of iron ore tailings characteristics and iron ore

However, in most previous researches, IOT mainly covers three categories: (i) iron tailings rock, used as coarse aggregate, of particle size >4.75 mm, is produced by mechanical crushing low-grade ore and wall rock. (ii) iron tailings sand, used as fine aggregate, particle size ranging from 0.16 mm to 4.75 mm, is produced by grinding and ...

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An evaluation of iron ore tailings characteristics and iron ore

However, in most previous researches, IOT mainly covers three categories: (i) iron tailings rock, used as coarse aggregate, of particle size >4.75 mm, is produced by mechanical crushing low-grade ore and wall rock. (ii) iron tailings sand, used as fine aggregate, particle size ranging from 0.16 mm to 4.75 mm, is produced by

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A short review on environmental impacts and application of iron ore

A lot of material is left unused during iron extraction, because of less concentration of the intended mineral. During the processing of the extracted ore, it involves milling and grinding which causes generation of tailing waste in the form of slurry.

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Ecological engineering of iron ore tailings into useable soils …

Introduction. Billions of tons of mine tailings are generated annually from extracting and processing of metal and mineral ores, 1, 2, 3 stockpiled in about 4,800 mine tailings storage facilities (TSFs), 4 occupying >240,000 ha of land worldwide. 4 Iron (Fe) ore tailings are one of the most challenging global tailings liability, 5 with over 1.4 billion …

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Use of grounded iron ore tailings (GIOTs) and BaCO3 to …

Novel methods are explored to improve sulfate resistance for cement pastes by using grounded iron ore tailings (GIOTs), BaCO 3 and both of them. Experiments were conducted on a plain cement paste and six blended cement pastes with different contents of GIOTs and BaCO 3.All the pastes were exposed to two kinds of external sulfate attacks …

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Mechanical and microstructural properties of iron …

Article. Open access. Published: 21 September 2023. Mechanical and microstructural properties of iron mining tailings stabilized with alkali-activated binder …

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Minerals | Free Full-Text | Recovering Iron from Iron Ore Tailings …

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 …

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Mechanics of an Iron Ore Tailings Exhibiting Transitional …

Laboratory critical state line (CSL) testing used in engineering practice to analyse the stability and liquefaction susceptibility of tailings explicitly assumes a unique CSL for a particular tailings. However, there is evidence of non-unique CSLs in some soils, a behaviour commonly referred to as "transitional behaviour". There is currently limited …

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Unlocking the potential of iron ore tailings in controlled low …

How can iron ore tailings, the waste products of iron ore mining, be used as a valuable resource for construction? This paper explores the feasibility and performance of using iron ore tailings in controlled low-strength materials, a type of self-compacting and self-leveling concrete. The paper also evaluates the environmental and economic …

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Hydraulic Characteristics of Silt-Sized Iron Ore Tailings

Stacked tailings have become increasingly popular in recent years as a more environmentally friendly option for tailings disposal. However, the design and assessment of stacked tailings present unique challenges due to their unprecedented heights and the wide range of factors that affect their behavior, including particle types and sizes, …

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Effect of iron ore tailings as partial replacement to fine

After the beneficiation of iron ore, the waste is generated, which arise many environmental issues for both living and nonliving components. Iron ore tailings are a byproduct of the mining and processing of iron ore, and their potential use as a replacement resource is the emphasis of this study. The purpose of this research is to …

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A Review on Remediation of Iron Ore Mine Tailings …

Mine tailings remain in dams/open ponds without further treatment after valuable metals such as iron ore have been extracted. Therefore, rehabilitation of tailings to mitigate the negative …

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Characterization of an Iron Ore Tailing Sample and the

The massive annual tonnage of iron ore tailings, plus the more demanding environmental policies after the catastrophic collapses of Fundão Dam in 2015 and Feijão Dam I in 2019, have forced Brazilian mining companies to search for more sustainable and safer alternatives for tailings disposal. The Brazilian mining industry has been studying the dry …

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A critical review on metallurgical recovery of iron …

Iron ore tailings (IOTs) are by-products generated during the beneficiation process of iron mining, encompassing stages such as gravity separation, magnetic separation, and flotation. The chemical composition of IOTs is profoundly influenced by …

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Utilization of tailings in cement and concrete: A review

For example, the content of SiO 2 in phosphate tailings is 2.1, in contrast to the 75.23 in iron ore tailings. Even if there were all lead-zinc tailings or iron ore tailings, the variation content of SiO 2 is 15.50-69.92 in the lead-zinc tailings or 24.19-75.23 in the iron ore tailings. As a result, if tailings are only classified according to ...

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Concrete Made with Iron Ore Tailings as a Fine Aggregate: …

With a rise in tailings content, the compacting factor declines. This may be due to iron ore tailings' fineness, which allows the particles to fill more voids in new concrete and produce a heavier compacted mass . However, it should be emphasized that all of the mixtures have high compatibility, with compacting factors ranging from 0.8 to 0.92.

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A Review on Remediation of Iron Ore Mine Tailings via …

Mining operations degrade natural ecosystems by generating a large quantity of mine tailings. Mine tailings remain in dams/open ponds without further treatment after valuable metals such as iron ore have been extracted. Therefore, rehabilitation of tailings to mitigate the negative environmental impacts is of the utmost necessity. This review …