Nigeria is rich is solid mineral resources, such as: Kaolin, gypsum, mica, clay, tantalite, iron ore, gemstone, silica sand.
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In recent years, the gangue component in iron ore deposits has increased owing to the increasing scarcity of high-grade iron ore. Such high levels of gangue causes a loss in strength of the ...
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After drying, green balls are preheated at 800°C for 10 min, pellets with compressive strength of 581 N/pellet are achieved, preheated pellets were directly reduced at 1050°C for 80 min, and directly reduced iron assaying 90.33% of total iron and 85.05% of metallic iron and 94.15% of metallization degree are achieved.
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The concept of UHPC was put forward by Larrard et al., 1994 and has received continuous attention in the construction industry and also achieved exponential improvements in various properties such as a compressive strength > 120 MPa [ Dingqians [8], [7]] flexural strength more than 50 MPa [9], possessing a minimum tensile strength …
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Iron ore tailings (IOTs), a type of mining waste from the beneficiation process of iron ore concentrates, can be used as SCMs via various activation methods. While activation of IOTs alone has been a topic of intensive research for years, there is a lack of comprehensive study on mechanical-chemical coupling activation of IOT-based ternary …
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China Iron and Steel Research Institute Group 2019 Abstract Sintering basic characteristics of fourteen iron ores were comprehensively evaluated using micro-sinter and grey …
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Strength values up to 6.59 MPa were achieved after 28 days-curing at 40 °C. Reducing porosity and increasing the binder content improved the overall mechanical behavior. N …
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This study aims to broaden the application of iron ore tailing (IOT) in geopolymer. Fresh properties, residual strength, mass loss and microstructure evolution of geopolymer prepared by using fly ash as starting material blended with IOT and activated by sodium silicate and sodium hydroxide solutions were investigated after exposure to 3 …
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The chemical and physical properties of iron ore tailings are comprehensively examined in this review, and various beneficiation and metallurgical recovery techniques such as …
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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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The test results show the workability falls off with the increment of iron ore tailings in percentage, while the compression strength values up to 30% iron ore tailings replacement are above the ...
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Abstract. This paper presents a comprehensive study on the production and reduction of high-quality iron ore pellets characterized by a basicity index nearing 0.5 and diameters …
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In order to comprehensive utilization of iron ore tailings, this experimental research was to investigate the possibility of using the residues after iron recovery from iron ore tailings as raw materials for the preparation of cementitious material, abbreviated as TSC, including analyses of its mechanical properties, physical properties and …
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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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KEY WORDS: comprehensive technologies; ultra-thick bed sintering; air permeability; air leakage; full active quicklime. begins to develop rapidly all over the country and the aver …
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related to mineral phases and structural properties of iron ore and sintered ore. Keywords: Ironmaking; iron ore; iron ore sinter; silico-ferrite of calcium and aluminum; Rietveld 1. Introduction A crystallographic understanding of iron ores and sintered ore is necessary to produce qualified iron ore sinter.
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Request PDF | Comprehensive evaluation of sintering basic characteristics of iron ore based on grey relational analysis | Sintering basic characteristics of fourteen iron ores were comprehensively ...
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Comprehensive Recovery of Valuable Metals from Lead-zinc Tailings by Flotation; Genetic diversity of bacteria in bioremediation system of iron mine tailing by Robinia pseudoacacia - Ryegrass - Trifolium repens; Experimental and Computational Assessment of the Strength Properties of Mont Wright Tailings Matrices for Use as …
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Fig. 2 illustrates the iron ore beneficiation process, particularly magnetic separation, resulting in the generation of inevitable tailings. Due to the characteristics of iron ores and the conditions during beneficiation, it is inevitable that approximately 2.5–3 tons of IOTs are generated for every 1 ton of iron ore concentrate produced [7].In 2019, …
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Solid waste management is a critical issue worldwide. Effectively utilizing these solid waste resources presents a viable solution. This study focuses on Iron ore tailings (IOTs), a solid waste generated during iron ore processing, which can be used as supplementary cementitious materials (SCMs) but have low reactivity, hindering their …
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Iron ore, a naturally occurring mineral composed primarily of iron oxides, is mined and processed to extract iron for various industrial applications. ... This article provides a comprehensive overview of the iron ore processing journey, from extraction to manufacturing, highlighting the key stages and technologies involved. Jump To A …
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Iron ore is the primary ingredient in steel production, making it a crucial resource for the global economy. Steel, a versatile material used in construction, automotive manufacturing, and countless other industries, relies on iron ore to provide its strength and durability. Without iron ore, the modern infrastructure we rely on would not exist.
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As a fundamental metallic element, iron plays an essential role in modern industrialization. Metallic iron is extracted from iron ores via mining activities. In the process of isolating iron minerals from ore, a large amount of iron ore tailings (IOTs) were produced. The detailed extraction process is shown in Fig. 1.
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Manganese ore processing is a multifaceted process encompassing mining, beneficiation, refining, and alloying, with significant implications for various industries.
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Experimental research on replacement of fine aggregate with iron ore tailing in concrete has shown reduced workability and compressive strength. 25–50% partial replacement has shown significant improvement on compressive strength of concrete. Iron ore tailing stabilized with 5–15% of other additives such as cement and …
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This article aims to provide a comprehensive understanding of iron ore, from its formation to its impact on the steel industry. By delving into the characteristics, extraction …
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Comprehensive evaluation of hydrogen-rich energy application in iron ore sintering process: Deep function mechanism analysis and process optimization ... excessive high fuel consumption and poor sinter strength would be inevitably generated. In this study, to synchronously ensure air permeability and moisture content to strengthen the sintering ...
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iron ore resources and technical conditions, later develop-ment of thick-bed sintering technology in China results in a thickness of 200–300 mm for a long period compared with Europe and Japan. Since 21st century, thick-bed sintering Comprehensive Technologies for Iron Ore Sintering with a Bed Height of 1 000 mm to Improve Sinter Quality, Enhance
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To obtain iron mineral from ore, abundant iron ore tailings (IOT) is generated in separating [6]. The detailed process is shown in Fig. 1. According to the 2018–2019 development report of China Bulk Industrial Solid Waste Comprehensive Utilization Industry, the total tailings volume has reached 1.211 billion tons, including IOT, copper ...
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How can hydrogen-rich energy improve the iron ore sintering process and reduce CO2 emissions? This article presents a comprehensive evaluation of the application of hydrogen-rich energy in iron ore sintering, based on deep function mechanism analysis and process optimization. Find out the optimal parameters and …
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PE series jaw crusher is usually used as primary crusher in quarry production lines, mineral ore crushing plants and powder making plants.
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