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  • Kinetics and mechanisms of direct reduction of iron ore

    Kinetics and mechanisms of direct reduction of iron ore

    Apr 20, 2015 However, research about the reduction mechanism and kinetics laws in term of reducing gas and iron ore-biomass composite pellets have not been referred to and systematic studies are needed. During the direct reduction process of ironmaking with bio-gas, the effective reducing agents are mainly CO and H 2 .

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  • Reduction Behavior of Carbon Composite Iron Ore Hot

    Reduction Behavior of Carbon Composite Iron Ore Hot

    The reduction and melting behavior of carbon composite iron ore hot briquette in shaft furnace are discussed. As these agglomerates are made by the use of thermal plasticity of coal, the reduction ...

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  • Direct reduction of iron ore biomass composite pellets

    Direct reduction of iron ore biomass composite pellets

    Nov 01, 2017 Particularly, the understanding of the reduction behavior of iron ore/biomass composite pellets in the DRI route would be beneficial to the industrial implementation in producing DRI by using biomass including the biomass additive agents and simulated biomass-derived syngas. 2. Materials and methods2.1. Materials

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  • Use of Iron Ore Fines in Cold Bonded Self Reducing

    Use of Iron Ore Fines in Cold Bonded Self Reducing

    Request PDF | Use of Iron Ore Fines in Cold-Bonded Self-Reducing Composite Pellets | The feasibility of producing direct reduced iron from cold-bonded, self-reducing composite pellets, constituted ...

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  • Use of iron ore fines in cold bonded self reducing

    Use of iron ore fines in cold bonded self reducing

    The feasibility of producing Direct Reduced Iron from cold-bonded self-reducing composite pellets made from Anglo American Kumba Iron Ore Sishen upgraded slimes was considered on laboratory scale. Composite pellets were made by mixing Sishen upgraded slimes, coke and different binders using a pelletizing disc by addition of moisture.

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  • Metallic Iron Particles in Coal Based Reduction of Oolitic

    Metallic Iron Particles in Coal Based Reduction of Oolitic

    Apr 24, 2018 the reduction of composite briquettes and iron particle size. The degree of metallization increased as reduction temperature was increased, reduction time was extended, or ore size fraction was decreased until the equilibrium of reaction was achieved. Moreover, the iron particle size gradually increased as reduction temperature was increased ...

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  • Reduction of Iron Ore Empty Fruit Bunch Char Briquette

    Reduction of Iron Ore Empty Fruit Bunch Char Briquette

    Direct reduction, a process of directly reducing the iron ore in solid form by reducing gases either H 2 or CO or mixture of both is an example. 1,2,3,4,5,6,7,8,9,10,11,12,13,14) This process is more productive since coal can be used directly with iron in the form of pellet or lump. Regardless of the two different methods, iron and steel making ...

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  • Effect of particle size on reduction behavior in iron ore

    Effect of particle size on reduction behavior in iron ore

    The reduction of iron ore-coal composite pellets was carried out in the temperature range of 500 ~1200 C by thermogravimetry. This study aims to investigate the effect of particle size of iron ore on reduction behavior. Three samples of different particle size were selected: 25 ~48 m, 75 ~106 m and 150 ~180 m. The reaction kinetic

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  • Reduction Kinetics of Iron Ore Graphite Composite Pellets

    Reduction Kinetics of Iron Ore Graphite Composite Pellets

    Mar 20, 2008 It is to be mentioned that the degree of reduction for a single iron-ore graphite composite pellet under inert atmosphere and in the temperature range of 900 C to 1100 C, as reported in literature,[2,9,32] is of the order of 90 pct. Therefore, it is very clear that reduction under packed bed is less efficient compared to single-composite reduction, which may be attributed to more heat and mass …

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