Mine tailings-based geopolymers: A comprehensive review
Many forms of mine tailings have the potential for recycling and re-use, including Mn-rich tailings, which can be utilized to manufacture building materials, ceramics, glass, and coatings; clay-rich tailings, which can be utilized to manufacture bricks, sanitary wares, porcelain, and cement; iron ore tailings mixed with supplementary materials ...
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Optimizing iron separation and recycling from iron …
Iron tailings, a type of refractory iron ores, pose a challenge for effective iron recovery due to the complex mineral combinations and liberation modes. In this study, we proposed a new approach to improve the quality of iron concentrates by combining …
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Revenue Generating Opportunities for Recycling
23 Jun, 2021, 08:30 ET. PALM BEACH, Fla., June 23, 2021 /PRNewswire/ -- Iron ore tailings are a form of solid waste produced during the beneficiation process of iron ore …
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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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Reviews of the Process Mineralogy Characteristics and …
The comprehensive utilization technology of iron ore tailings has played an important role in the green mine construction and social and economic sustainable development in China. On these accounts of large emission, low scale utilization rate and complex composition of tailings and low added value of iron ore tailings based …
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Innovative methodology for comprehensive utilization of iron ore tailings
Iron ore tailings have become one kind of the most hazardous solid waste. In order to recycle iron in the tailings, we present a technique using magnetizing roasting process followed by magnetic separation. After analysis of chemical composition and crystalline phase, according to experimental mechanism, the effects of different …
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A new approach for recovering iron from iron ore …
A new approach for recovering iron from iron ore tailings using suspension magnetization roasting: A pilot-scale study. A new approach for SMR was developed for …
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Determination of Minerals of Cassiterite Tailings and its Recycling …
Empirical evidence of cassiterite tailings as show n in table 6, 7, and 8 indic ates that there is a high percentage of iron ore than other associated minerals.
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Comprehensive reutilization of iron in iron ore tailings: …
A large number of iron ore tailings (IOTs) are produced in steel industry, posing threat to the environment during its storage and disposal. To effectively reutilize Fe in IOTs, we propose a comprehensive utilization scheme: (1) most Fe in IOTs is extracted by concentrated hydrochloric acid to form FeCl 3 flocculants; (2) after separation from the …
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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 tailings …
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Current situation and comprehensive utilization of iron ore …
The situations, characteristics, and status of iron ore tailing resources in China are presented. The approaches of comprehensive utilization of iron ore tailings have been analyzed. It has been proved that the comprehensive utilization of iron ore tailings is efficient, socially beneficial and improves environment situation. The scopes of …
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Comprehensive Utilization of Iron Tailings in China
[1] Qin Y. 2010 Status and Prospects of Iron Recovery from Magnetite Tailing. China Mining Magazine 19 47-49. Google Scholar [2] Yin H., Wang M., Ren Y. et al. 2006 Preparation of Light Heat-Insulation Wall Material Using Handan Iron Mine's Tailings Metal Mine 76-78 Google Scholar [3] Meng Y., Ni W. and Zhang Y. 2010 Current State of Ore …
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A critical review on environmental implications, …
Hong-Xia Liu & Han-Zhi Lin. 2781 Accesses. 68 Citations. Explore all metrics. Cite this article. Abstract. Mine tailings, generated from the extraction, processing, and …
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Field application and effect evaluation of different iron tailings …
Iron tailings are generated in large amounts due to the extensive mining activities, leading to the large-scale land occupation, serious environmental pollution and high ecological risks. Therefore, there is an urgent need to develop economic and effective technologies for the large scaled utilization of tailings. In this study, 1132.8 m 2 field …
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Fe–C-based materials: synthesis modulation for the
They can be reasonably used to prepare new adsorption materials, thus have a great significance for the recycling of iron tailings solid waste (Zhang et al. 2006a, b). The shading in Fig. 7 represents the total output of tailings, and the black part represents the ratio of iron tailings to its total output.
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Utilization of molybdenum tailings as fine aggregate in …
Xu et al. (2021) added iron ore tailings (IOT) sand to produce performance-enhanced RAC and found that the mechanical properties and freeze-thaw (F-T) cycle resistance of RAC could be maintained with a replacement rate of up to 30% for IOT. Relevant scholars have studied the high-temperature resistance of RAC prepared from …
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Pilot-scale extraction of iron from flotation tailings via …
Iron tailings is the most common and largest mining waste, and given the serious social, economic, and environmental impacts caused by tailings, green and safe technologies are urgently needed for the efficient treatment of tailings. In the present work, efficient extraction of iron from flotation tailings via the suspension magnetization …
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Waste valorization of iron ore tailings in Brazil: Assessment metrics
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, …
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Mechanical activation of lead–zinc mine tailings as a …
Recycling of mine tailings for the geopolymers production: a systematic review. Case Stud. Constr. Mater. ... (GIOT) as aggregates in cemented mortar to reduce the pollution of iron ore tailings (IOT) and shortage of river sands. Fresh and hardened properties of graded tailings cemented mortar (GTCM) with partial replacement of …
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Recycling of low-silicate iron tailings in the …
The study provides an attractive method for recycling low-silicate iron tailings to prepare lightweight insulating building materials with higher strength, …
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A short review on environmental impacts and application of iron ore …
Thus, an alternative to overcome the environmental problems associated with IOT is to recycle it in construction industry [7]. ... Iron ore tailings. 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 ...
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Disposal of mine tailings via geopolymerization
Some mine tailings also have reuse and recycling potentials: clay-rich tailings can be utilized for the production of bricks, cements, sanitary wares, and porcelain; Mn-rich tailings might be used to produce construction materials, glass, ceramics, and coatings; bauxite-containing tailings could serve as Al sources; iron ore tailings mixed …
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Geosciences | Free Full-Text | Recycling and Reuse …
Iron ore tailings are blended in geopolymers as fine aggregates, fillers, and precursors, forming new materials that can be used as construction materials, such as roads and highways. ... Ito, M.; …
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Research on the high-temperature resistance of recycled …
Iron ore tailings are the solid wastes remaining after refining, grinding, and sorting iron ore[23]. When the particle size of iron ore tailings is less than 4.75 mm, it is called iron tailing sand. Many researchers [23], [24], [25] agree that iron tailing sand has relatively low pozzolanic activity due to its stable crystal structure.
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Concrete Made with Iron Ore Tailings as a Fine Aggregate: …
Recycling industrial trash is one strategy to reduce these problems [33,34,35]. If recycled resources are correctly assessed before being used as building materials, the construction sector has a significant potential to absorb diverse industrial leftovers. ... This may be due to iron ore tailings' fineness, which allows the particles to …
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IOP Conference Series: Earth and Environmental Science …
chemical mineral composition of iron tailings, the comprehensive utilization status of iron tailings is analyzed. Some existing problems are put forward and relevant Suggestions are given. 1. Introduction Iron tailings are the waste residue discharged from iron ore after they are selected by the ore dressing process.
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Steel slag and iron ore tailings to produce solid brick
The main goals of this work were to verify the potential of reuse of steel slag and iron ore tailings as secondary raw materials to produce solid brick and to evaluate whether this application can consume the amount of slag generated in Brazil. The feasibility of this application was verified through a comparative study. The mechanical behavior of …
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A critical review on environmental implications, recycling strategies
Li C, Sun HH, Bai J, Li LT (2010) Innovative methodology for comprehensive utilization of iron ore tailings: Part 1. The recovery of iron from iron ore tailings using magnetic separation after magnetizing roasting. J Hazard Mater 174:71–77. Li WS, Lei GY, Xu Y, Huang QF (2018) The properties and formation mechanisms of eco-friendly brick ...
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Applied Sciences | Free Full-Text | The Potential of Iron Ore Tailings
Market forecasts imply that the findings of new deposits along with new techniques of recovery, recycling, and reuse of REE will enable world production to continue increasing. ... Francisco Ortega-Fernandez, Raquel Lopez-Castaño, and Jose V. Alvarez-Cabal. 2019. "The Potential of Iron Ore Tailings as Secondary Deposits of Rare …
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Minerals | Free Full-Text | Recovering Iron from Iron …
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 …
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