Comprehensive Assessment on Utilization of Iron Ore …
— World is bestowed with self-sufficient magnetite and hematite iron ores. Huge volume of mining waste, namely iron ore tailings (IOT), is generated during processing of iron ore, leading to environmental concerns. At the same time, due to excessive usage and environmental regulations, there is scarcity of naturally available …
Comprehensive Utilization of Iron Tailings in China
— Iron tailings are the main component of industrial solid waste, and their resource utilization has attracted the attention of the whole society. Based on the introduction of chemical mineral composition of iron tailings, the comprehensive utilization status of iron tailings is analyzed.
Review Utilization of tailings in concrete products: A review
— Utilization of iron ore tailings as fine aggregate in ultra-high performance concrete Constr. Build. Mater., 50 ( 2014 ), pp. 540 - 548, 10.1016/j.conbuildmat.2013.10.019
UTILIZATION OF IRON ORE TAILINGS AS …
In the present study Iron Ore Tailings (IOT) procured from Kudremukh Lakya Dam site (KIOCL Ltd.) are used as partial replacement to fine aggregates at levels of 10, 20,30,40,50 percent
Utilization of iron ore tailings as fine aggregate in ultra …
— Natural sand and iron ore tailings were used as aggregates. The natural sand was originally excavated from the lower reaches of Yangtze River and had an apparent density of 2.63 g/cm 3.The tailings were obtained from the local iron and steel industry and had an apparent density of 2.62 g/cm 3.The chemical composition of the …
Utilization of tailings in cement and concrete: A review
— Tailings are solid wastes of the ore beneficiation process in the extractive industry and are available in huge amounts in some countries. This paper reviews the potential utilization of tailings as a replacement for fine aggregates, as supplementary cementitious materials (SCMs) in mortar or concrete, and in the production of cement …
Utilization of tailings in cement and concrete: A review
— The aim of this review is to re-assess the potential utilization of tailings for cement clinker production and the opportunities and challenges of using tailings as …
Co-utilization of iron ore tailings and coal fly ash for …
— Maximizing the utilization of industrial by-products, such as iron ore tailings (IOTs) and coal fly ash (CFA), is crucial toward sustainable development. This study provides a meticulous insight into the optimization, mechanism, and assessment of the co-utilization of IOTs and CFA for the preparatio …
A new approach for recovering iron from iron ore tailings …
— Therefore, realizing the secondary utilization of iron ore tailings is of considerable significance to reduce the occupation of land resources, improve the ecological environment, and improve the efficiency of resource utilization. ... Iron ore tailings obtained from the Jiuquan Iron and Steel Corporation in Gansu Province of China were …
Preparation and application of soil conditioner using iron ore tailings
— 1. Introduction. Iron ore tailings (IOT) are a major industrial solid waste generated during the beneficiation of iron ores. It is estimated that several hundred million tons of IOT are discharged globally each year [1].The stockpiling of tailings not only occupies substantial land resources but also poses serious threats to the surrounding …
Resource Utilization of Iron Ore Tailings to Recover SiO
— Iron ore tailings (IOTs) are an important solid waste in the mining industry, which can pollute the environment and endanger human health. However, the disposal and high value-added utilization of iron tailings have always been a challenge. Notably, superconducting high-gradient magnetic separation (S-HGMS) technology is a …
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 …
Use of iron mine tailing as fillers to polyethylene
— The iron mine tailings accumulation in dams is an environmental and economic problem. ... Onitiri and Akinlabi 4 used 20% by volume of iron ore tailings as maximum amount in ... T. Utilization of ...
Present Situation of Comprehensive Utilization of Tailings …
— LI C, SUN H, BAI J, et al. 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]. Journal of Hazardous Materials, 2010, 174(1):71-77. Google Scholar [18]
Use of iron ore tailings as partial replacement for cement on
— The mining industry has been expanding and consequently increasing the associated environmental impacts, especially regarding this process's high volume of iron ore tailings (IOT) disposal. The best way to solve the problems caused by IOT is to develop large-scale utilization technologies that may consume large quantities of it.
Utilization of iron tailings to prepare high-surface area …
— In China, iron ore tailings are the major mining solid wastes, which storage has reached 5 billion tons, and a steady increasing trend of the rate of over 0.3 billion tons per year is observed. However, the iron ore tailings utilization rate is very low; in 2013, this rate in China was below 20% (C. Lu et al., 2020; X.D. Lv et al., 2018).
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 …
Utilization of tailings in cement and concrete: A …
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 …
Feasibility of iron-rich ore tailing as supplementary …
— In Brazil, iron ore tailings generally have higher levels of iron reaching about 60% of Fe in its composition [3], ... Utilization of iron ore tailings as fine aggregate in ultra-high performance concrete. Constr. Build. Mater., 50 (2014), pp. 540-548, 10.1016/j.conbuildmat.2013.10.019.
Resource Utilization of Iron Ore Tailings to Recover …
TECHNICAL ARTICLE Resource Utilization of Iron Ore Tailings to Recover SiO 2 Sand Through S-HGMS: Parametric Optimization and Mechanism Analysis AO ZHANG,1 XIAOFENG YANG,2 CONG LI,1 YONGKUI LI,1 YU CHEN,3 XIAODONG PAN,1 YONGPING XIE,1 and SUQIN LI1,4,5 1.—School of Metallurgical and Ecological …
A review on complex utilization of mine tailings: Recovery of …
— Techniques like bioleaching and mechanical activation can improve tailings utilization. •. Utilizing tailings aligns with circular economy principles to transform waste …
Utilization of high-sulfur iron ore tailings in cement mortar …
— This work investigates the usage of graded iron ore tailing sands (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 standard sands (SS) by GIOT were investigated, by …
Investigating the grinding characteristics of vanadium-titanium iron
— 1. Introduction. Vanadium-titanium iron ore tailings (VTIOT) is solid industrial waste produced during the beneficiation process of vanadium-titanium magnetite (VTM) [1], [2], which has been stockpiled in huge quantities in China [3], [4], with cumulative stockpiles exceeding 7.5 billion tons [5], not only occupying a large amount of land, but also …
Research Progress on Comprehensive Utilization of Iron Tailings
— Iron tailings is one of the main solid waste produced in the process of iron ore development, and is also an important secondary resource. The common ways of comprehensive recovery and utilization of iron tailings resources at present are described in detail from five aspects: In terms of the recovering valuable elements, the principle of …
Utilization of iron ore tailings with high volume in green …
DOI: 10.1016/j.jobe.2023.106585 Corpus ID: 258231807; Utilization of iron ore tailings with high volume in green concrete @article{Zhang2023UtilizationOI, title={Utilization of iron ore tailings with high volume in green concrete}, author={Yannian Zhang and Zhijun Li and Xiaowei Gu and Moncef L. Nehdi and Afshin Marani and Lei V. Zhang}, journal={Journal …
Utilization of iron ore tailings with high volume in green …
— 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 …
Basic characteristics and environmental impact of …
— This study systematically explores the physical and chemical properties, grindability, and basic characteristics of extremely fine particle iron ore tailings (IOTs), providing the basis for the comprehensive …
Recovering Iron from Iron Ore Tailings and …
— 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 …
Research Progress on Comprehensive Utilization …
— Iron tailings is one of the main solid waste produced in the process of iron ore development, and is also an important secondary resource. The common ways of comprehensive recovery and utilization …
Current situation and comprehensive utilization of iron ore …
It has been proved that the comprehensive utilization of iron ore tailings is efficient, socially beneficial and improves environment situation. The scopes of comprehensive utilization …
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 …
Iron Ore Tailings: Characterization and Applications
— Some possible applications for iron ore tailings (IOT) after the separation step. Model houses built using IOT in collaboration projects of UFMG with the mining companies Samarco and Gerdau. 93,94 +5
Industrial byproduct Iron ore tailings as ecofriendly …
— Utilization of iron ore tailings as fine aggregate in ultra-high performance concrete. Constr. Build. Mater., 50 (2014), pp. 540-548. View PDF View article View in Scopus Google Scholar [21] G.D. Zhang, X.Z. Zhang, Z.H. Zhou, et al. Preparation and Properties of Concrete Containing Iron Tailings/Manufactured Sand as Fine Aggregate.
Experimental study on the preparation of cementitious …
— The results show that the activation of iron ore tailings(IOT) can increase the specific surface area, improve the surface energy and activity, increase the degree of participation in hydration reaction, promote the formation of a large number of acicular ettringite and C-S-H gel, improve the pore structure of hydration products, and lead to …
Co-utilization of iron ore tailings and coal fly ash for …
— Maximizing the utilization of industrial by-products, such as iron ore tailings (IOTs) and coal fly ash (CFA), is crucial toward sustainable development.This study provides a meticulous insight into the optimization, mechanism, and assessment of the co-utilization of IOTs and CFA for the preparation of porous ceramsite.