Recycling of low-silicate iron tailings in the production of
But it should be noted that iron tailings have higher density than the clay materials due to its high iron content, as we have demonstrated previously, so the bulk density of the specimens obviously rose as the iron tailings content increased, and the decreasing of apparent porosity due to the release of gases in the firing process and the ...
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Hydraulic classification and sedimentation behaviors of …
research summarizes the hydraulic sedimentation and grain composition behaviors of iron tailings, and provides data for the exploration and simulation of the natural formation …
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An extensive review on restoration technologies for mining tailings
Tailings are produced by crushing and grinding in the beneficiation process and, with the reduction in bulk density, the specific surface area becomes larger (Bhattacharya et al. 2006). ... Medicago sativa L., establishment in mine mill tailings: II. Root patterns of alfalfa in iron tailings and natural soils. Plant Soil 73:239–246.
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Geotechnical Properties of Mine Tailings
The produced tailings were transported into a hydrocyclone sepa-ration facility, and two kinds of tailings were generated, i.e., coarse tailings from the bottom and fine tailings from the overflow of the hydrocyclone separation facility. The concentrations of the pro-duced coarse iron and fine iron tailings from the Yuhezhai iron
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Utilization of Iron Tailings Sand as an Environmentally …
The bulk density and fineness modulus of iron tailings sand were 3.03 g/cm 3 and 3.10, respectively. Its sieving curve is presented in Figure 1. The iron tailings sand contained 5.6% of powders smaller than 75 μm, and its chemical composition, characterized by the XRF method, is reported in Table 2.
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Geotechnical Properties of Mine Tailings and …
densities were measured in iron ore tailings, lower in gold tailings, and lower still in nickel tailings. In these tests, beakers of tailings are dried at temperatures in the range of 40 to 50 degrees Celsius for approximately four to seven days until the density change is …
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Comprehensive Assessment on Utilization of Iron Ore …
Sample Collection. Kudremukh Iron Ore Company Ltd (KIOCL), one of India's largest mining corporations, has deposited around 150 million tons of tailings in the Lakhya dam [].Lakhya dam is located in Kudremukha mountain range, Chikkamagaluru district, Karnataka, India, with a geographical position of 13°13′8.61′′ N and 75°13′40.63′′ E.
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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. ... Part III- Specific gravity, density, voids, absorption and bulking, Bur Indian Stand New Delhi, p (Reaffirmed 2002) Bureau of Indian Standards (BIS) (1996) Method of physical tests for ...
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An evaluation of iron ore tailings characteristics and iron …
According to GB/T 31288–2014 [27] and YB/T 4561–2016 [28], there are three types of IOT: iron tailings powder, iron tailings super fine sand, iron tailings fine sand. 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 ...
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(PDF) Iron Ore Tailings as Partial Replacement for Fine …
Iron Ore Tailings as Partial Replacement for Fine Aggregate in Concrete Production – Review. ... They performed tests on the properties of concrete such as workability, durability, density, compressive strength, and indirect tensile strength. The iron ore tailings aggregate concrete exhibited a good compressive strength, with an increment of ...
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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 …
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The Experimental Characterization of Iron Ore Tailings …
behavior of iron ore tailings and emphasize the potentially promising combination of high shear resistance and high density that favors particular geotechnical applications. The Linear trendine: y = 0.3057x - 588.06 R² = 0.8144 Exponential trendine: y = 2 × 10-14 ×e0.0174x R² = 0.8554 0 5 10 15 20 25 30 35 1950 1960 1970 1980 1990 …
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The Composition and Performance of Iron Ore Tailings in …
Iron ore tailings (IOTs) are byproducts of the iron mining industry that have gained significant attention in recent years due to their potential for comprehensive utilization. This study investigates how blending steel slag with IOTs (a siliceous raw material) instead of lime (a calcareous raw material) affects slurry ing properties, mechanical …
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Estimation of Bulk Density, Recovery Tests and Mineralogical Analysis
The results of the bulk density determined in the field for iron ore samples shown are 2.98 to 3.03. The average bulk density for float ore can be taken as 2.51.The recovery percentage for the 3nos. of iron ore samples varied from 58.50%, 63% and 61%, the average being the float ore recovery which is around 43%. Hematite (45%) is the …
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Mechanical behaviour of Panzhihua iron tailings
However, recent advances have highlighted a so-called "transitional" behaviour in which the location of the normal compression line (NCL) and CSL is a function of the density of the soils at deposition. This paper presents a detailed investigation of the mechanics of tailings taken from three locations of an iron tailings impoundment.
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Basic characteristics and environmental impact of iron ore …
This study systematically explores the physical and chemical properties, grindability, and basic characteristics of extremely fine particle iron ore tailings (IOTs), …
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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. ... The largest reduction in tailings bulk density was found in A1 treatment by 25.7%, which was greatly related to the potential synergy between rice …
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Assessment of iron tailings as replacement for fine …
density of iron tailings (2121.9 kg/m3) is higher than that of the sharp sand (2118.3 kg/m3). Samples of iron tailings used have an average specific gravity of 4.13 compared to the specific gravity of sharp sand (2.97). This high specif-ic gravity can be traced to iron content since its density is more significant than sand.
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Recycling of low-silicon iron tailings in the
Therefore, the iron tailings can incorporate the non-plastic components such as fly ash and powdery quartz sand and the particulate density of the iron tailings, fly ash and powdery quartz sand were 3.11 g/cm 3, 2.23 g/cm 3 and 2.68 g/cm 3, respectively.
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Review Utilization of tailings in concrete products: A review
In some cases, materials such as iron tailings improve the pore structure of the concrete due to the presence of particles ... This is due to the increased packing of the particles and the higher value of the absolute density of the tailings compared to natural aggregate [38]. When the tailings are added to the concrete in low concentration ...
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The Composition and Performance of Iron Ore Tailings in …
Iron ore tailings (IOTs) are byproducts of the iron mining industry that have gained significant attention in recent years due to their potential for comprehensive utilization. This study investigates how blending steel slag with IOTs (a siliceous raw material) instead of lime (a calcareous raw material) affects slurry ing properties, …
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Characteristics of the fired bricks with low-silicon iron tailings
Iron tailings and fly ash were mixed by different weight ratio. Mixture proportions were presented in Table 1.The mixtures containing iron tailings with the fly ash were firstly mixed for 10 min in a blender, and then necessary amount of water (about 10% by mass) was added to the mixture for the production of semi-dry molded brick samples …
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Improving flocculation and dewatering performance of iron tailings
The chemical and mineralogical compositions of the tailings thickeners feed are shown in Table 2, Table 3, respectively.The chemical analysis shows that the most important components are Fe 2 O 3, SiO 2, Al 2 O 3, CaO, MgO with a negligible amount of other oxides.The mineralogical analysis shows that the major iron-bearing minerals are …
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Investigation of flocculation behavior of tailings during …
Finally, at a true density of 3.156 g/cm 3 (K 4), the particle smoothness on the structure's surface significantly increased, while the size of the FSG showed only a minor reduction, distributed between 181 μm and 193 μm. Thus, it can be concluded that the structural body porosity decreases with higher true density of tailings.
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The Experimental Characterization of Iron Ore Tailings from …
The experimental results highlight the particular features of the behavior of iron ore tailings and emphasize the potentially promising combination of high shear …
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Study on influencing factors of shear characteristics of rock …
Iron tailings were selected from iron tailing ore far away from the slurry discharge outlet in a tailings dam in Liaoning province, and density, grain size distribution, fineness modulus, basic properties, such as chemical composition and mineral composition and mechanism of sand were analyzed according to GB/T 14684–2011 (Sand for …
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Hydraulic classification and sedimentation behaviors of iron tailings
The average value of the hydraulic deposition density of tailings is more than 1.8 g·cm −3 (Table 2), the maximum density is more than 2.0 g·cm −3, and this density is larger than the common density of urban foundation soil (Cao et al. 2018; Yu 2018), while the hydraulic sorting density can be quickly reached.
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Hydraulic classification and sedimentation behaviors of iron …
The pulp density and flow rate of tailings have a significant impact on the separation effect of the full tailings, and reducing the pulp density or flow rate can …
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Molecular insights into the simultaneous removal …
Density functional theory (DFT) calculation. The molecular configurations of iron oxide and aluminum oxide before and after adsorption were generated using GaussView 6.0 (Adamescu et al., ... Iron tailings slag exhibited unique adsorption capabilities for As in ITBNa800.
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Investigation on the Prevention and Treatment Measures of …
The density of tailings above the water level was 2000 kg/m 3 and that of tailings below the water level was 2500 kg/m 3. ... Cui XL (2012) Preliminary approach to mechanical characteristics of cement mixed superfine iron tailings. Int Conf Mater Manuf (ICMM) 299-300:718–721. Google Scholar Download references. Funding ...
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