A critical review on metallurgical recovery of iron from iron …
The chemical and physical properties of iron ore tailings are comprehensively examined in this review, and various beneficiation and metallurgical recovery techniques such as flotation, magnetic separation, leaching, and magnetization …
Geotechnical Properties of Mine Tailings | Journal of …
In fact, tailings characteristics vary greatly and are highly dependent on the ore type, clay mineralogy, and the physical and chemical processes used to extract the economic product. Therefore, a comprehensive understanding of the mechanical properties of mine tailings is critical for the design of a tailing dam. ... For the two iron tailings ...
Preparation and characterization of novel glass
The use of iron ore tailings (IoT) as an alternative mineral source can improve the sustainability of the mining process. Therefore, this study was conducted to describe the parameters of interest, including waste generation, and electricity and water consumption, in the iron mining activity of the Iron Quadrangle in Minas Gerais, Brazil ...
Experimental Study and Microscopic Analysis on Frost Resistance of Iron
Frost resistance of iron ore tailings recycled aggregate concrete is revealed from the macro- and microangles to provide a theoretical foundation for the large-scale application of iron ore tailings recycled aggregate concrete in the high altitude and cold regions of the world. 2. Specimen Preparation and Experimental Design 2.1. Materials
Buildings | Free Full-Text | Mechanical Properties and Sulfate …
Iron ore tailings from iron ore mines pose environmental challenges. However, their reuse could provide significant environmental benefits. This study focused on producing clean concrete using iron ore tailings as crushed stone aggregate (IOTA) and calcium carbonate whiskers (CWs) as reinforcement. Five mixture groups were …
An Novel Method for Iron Recovery from Iron Ore Tailings …
Iron ore tailing is currently one of the most important secondary mineral resources. Pre-concentration followed by magnetization roasting and magnetic …
A Review on Remediation of Iron Ore Mine Tailings via …
A greenhouse trial to investigate the ameliorative properties of biosolids and plants on physicochemical conditions of iron ore tailings: Implications for an iron ore …
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 …
A short review on environmental impacts and application of iron ore
One such waste which is generated during the beneficiation process of iron ore is waste iron ore tailings, which is also termed as IOT. Further, dumping of IOT on open ground creates huge dumping ...
Utilisation of iron ore tailings as aggregates in concrete
The iron ore tailings aggregates concrete exhibited a good mechanical strength and even in the case of compressive strength, there was an improvement of 11.56% over conventional aggregates concrete. The indirect tensile strength did not improve against the control mix due high content of fines in the tailings aggregates but …
The 2019 Brumadinho tailings dam collapse: Possible …
After 3 years of the Mariana tragedy, on 25th January 2019, another mining dam consisting of iron ore tailings failed catastrophically in the Brumadinho city, Minas Gerais State, Brazil. The rupture produced more than 11 × 10 6 m 3 of mining waste – equivalent to a 10-m high wave of mud that spread 10 km the downhill – that reached the ...
Basic characteristics and environmental impact of iron ore …
Iron ore tailings (IOTs) are the indusus solid waste discharged by concentrating mills after processing iron ores and selecting "valuable components" ( Yao …
Unlocking the potential of iron ore tailings in controlled low …
Iron ore tailings (IOT), the predominant solid by-products of iron ore mining and refining, present significant environmental challenges due to their sheer volume. ... (e.g., from 11.5° to 16.3°) of the cured CLSM samples. The mass loss of CLSM, post dry-wet cycles, is notably mitigated, and the corresponding UCS is also bolstered by ...
A new approach for recovering iron from iron ore tailings …
In this study, a pilot-scale experiment on the iron recovery from iron ore tailings was investigated using innovative technology of pre-concentration and …
Technical and environmental assessment of the incorporation of iron ore …
Iron ore tailings is a material with a high silt content (49.50%) and a considerable amount of fine sand (38.60%), which can be classified as a sandy silt. ... The loss of ignition of IOT is related to the combustion of organic matter, and it is significantly lower than the values obtained for clays. This result, associated with the physical ...
Optimizing iron separation and recycling from iron tailings: …
1. Introduction. Iron tailings, generated from the beneficiation and metallurgy of iron ore, are hazardous wastes that pose significant environmental challenges due to their large-scale disordered storage, resulting in widespread damage and safety concerns [1], [2].The annual worldwide deposition of over 10 billion tons of iron tailings in …
Assessment of the use potential of iron ore tailings in the …
The iron ore tailings (IOT) used in this work were collected from four Class III high environmental risk iron ore tailings-dams [26]. These (Fig. A.1) were selected based on the associated social and environmental potential risks, as well as economic relevance, as described in the dams inventory of the Minas Gerais State [27]. All four …
Unlocking the potential of iron ore tailings in controlled low …
The mass loss of CLSM, post dry-wet cycles, is notably mitigated, and the corresponding UCS is also bolstered by increasing the IOT content. ... These processes are primarily characterized by the generation of substantial waste, including iron ore tailings (IOT). Being one of the most notable solid by-products, IOT originates from the …
An extensive review on restoration technologies for mining tailings
For example, to obtain a metric ton of iron, 1.5 t of iron ore tailings (IOT) is generated by processing of iron ore (Liu et al. 2010). Approximately two tons of bauxite residue are generated in the production of one ton of aluminum metal ... including the nutrient retention and loss, soil chemistry reactions, organic matter synthesis, ...
Sustainability | Free Full-Text | Iron Ore Tailings Dewatering
Globally, mining operators focus increasingly on tailings filtration to recover process water and store tailings more safely. Generally, required water contents below 20-w% are reached by using filter presses. To maintain high efficiency, complete cake detachment is needed because incomplete discharge reduces plant performance. …
Preparation, characteristics and mechanisms of the
Iron ore tailings and coal gangue powder are the main sources of industrial solid wastes, the dispose of which has become severe and urgent with the increasing demand of environmental harmony.
Iron Ore Tailing Beneficiation – a Potential Resource for Future
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. ... hydrocylone overflow, which is 16% of ROM considered as a tailing, can be processed through HGMS to reduce the slime loss and recover iron …
Stabilization of black cotton soil with lime and iron ore tailings
The Itakpe iron ore deposit in Nigeria has a reserve of about 182.5–200 million tonnes with an average iron ore content of 36% and large quantities of tailings are obtained as waste product of the beneficiated iron ore (Ajaka, 2009, Adepoju and Olaleye, 2001). The tailings are often dumped around the industries concerned where they form ...
Mechanical behavior of iron ore tailings under standard …
Volume 15, Issue 7, July 2023, Pages 1883-1894. Full Length Article. Mechanical behavior of iron ore tailings under standard compression and extension triaxial stress paths. …
The Reprocessing and Revalorization of Critical Minerals in Mine Tailings
Mine tailings, the byproduct of mining and mineral processing, are increasingly mass produced as a result of increased demand for metals and minerals as well as the advancement in technology that allows for the exploitation of lower-grade ores. Lower grades can increase the volume of tailings that may contain new gangue …
Iron Ore Tailings: Characterization and …
iron ore tailings; mining waste; iron oxide; technological application. 1. Introduction ... curve of these materials. Region 1, (25-200 °C, approximately), indicates the loss of mass due to water desorption …
Tailings storage facilities, failures and disaster risk | Nature
On 19 July 1985, two tailings storage facilities (TSFs) storing fluorite tailings from the Prealpi Mineraia Mine in the Dolomite Mountains of Italy failed 186. Around …
The Experimental Characterization of Iron Ore Tailings from …
The results show that the iron ore tailings tested have a liquefaction resistance that exceeds that of the mineral sand tailings presented for large values of …
Mechanical properties and enhancement mechanism of iron ore tailings …
Iron ore tailings (IOT), as one of the main mining wastes, is produced after multiple crushing and magnetic separation on iron ore [15]. In China, stored IOT has reached 5 billion tons and is growing steadily at a rate of over 0.3 billion tons per year, whereas only 20 % of them has been reused [16] .
Effect of iron ore tailings as partial replacement to fine
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. ... IOT, sodium silicate, and sodium hydroxide solutions was tested for fresh properties, strength, mass loss, and microstructure evolution with varying percentages of IOT replacement (0 ...