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This study focused on improving recycling of carbon-bearing dusts from integrated steel plants by the composite agglomeration process (CAP), in which four types of the dusts were prepared as pelletized feed, while the other raw materials were used as matrix feed for sintering to produce agglomeration product as a substitute for traditional …
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Iron ore is regarded as the second most important commodity behind oil. As an essential input for the production of crude steel, iron ore feeds the world's largest trillion-dollar-a-year metal market and is the backbone of global infrastructure.
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Iron processing - Smelting, Refining, Alloying: The primary objective of iron making is to release iron from chemical combination with oxygen, and, since the blast furnace is much the most efficient process, it receives the most attention here. Alternative methods known as direct reduction are used in over a score of countries, but less than 5 percent of iron …
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In most cases, arsenic is an unfavorable element in metallurgical processes. The mechanism of arsenic removal was investigated through roasting experiments performed on arsenopyrite-bearing iron ore. Thermodynamic calculation of arsenic recovery was carried out by FactSage 7.0 software (Thermfact/CRCT, Montreal, …
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The bio-beneficiation process occurs in mild conditions using bio-reagents derived from microbes and offers a reduction of chemicals used in processing. Bio-beneficiation of iron ore potentially offers a relatively energy-efficient, cost-effective, and environmentally friendly method of maximum iron ore recovery.
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Iron ore, extracted through ore mining, stands as the primary source of iron and serves as a fundamental building block for steel production. The process involves the integration of coal, a crucial energy source, contributing to the creation of coke in the electric arc furnaces, which aids in reducing iron ore to molten metal.
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Utilization of biomass in iron ore roasting process as heating agent and reducing agent contributes to energy conservation and emission redn., and can partially replace for coal and coke. ... Highly Efficient Beneficiation of Low-Grade Iron Ore via Ore-Coal Composite-Fed Rotary Kiln Reduction: Pilot-Scale Study. Zhong, Ronghai; Yi, …
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Iron ore sintering is the second-most energy-consuming process in steelmaking. The main source of energy for it is the combustion of carbon. In order to reduce energy consumptions and improve industrial competitiveness, it is important to improve carbon efficiency.
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Industry?", Global Efficiency Intelligence, 2019. Sustainable Steelmaking The American steel industry is the cleanest and most energy efficient of the leading steel industries in the world. This is due to the high percentage of steel made from recycling scrap to make new steel, and the use of domestically-sourced iron ore
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In this paper, a process of pre-oxidation and magnetization roasting followed by low-intensity magnetic separation and acid leaching (OMLA) was developed to separate and recover iron from siderite ore with high-magnesium and high-manganese.
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Iron ore tailings, which are important secondary resources, have outstanding latent application value in iron recovery. In this study, a pilot-scale experiment on the iron recovery from iron ore tailings was investigated using innovative technology of pre-concentration and suspension magnetization roasting (SMR), followed by magnetic …
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The iron ore sintering process is an important step in preparing raw material for ironmaking. How to reduce carbon consumption while ensuring the stable running of the sintering process is an urgent problem to be solved. In this brief, an intelligent integrated control strategy for the burn-through point (BTP) to carbon efficiency optimization in the …
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Large amounts of iron ore sinter are produced throughout the world. The development of sustainable and energy-efficient technologies has become increasingly important due to the huge pressure associated with energy consumption and greenhouse gases emissions by iron ore sinter plants.
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