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Dephosphorization mechanism of high phosphorus oolitic hematite by reduction roasting

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  • .pdfBOOK118

     · .pdf 36 10 Vol 36 No 10 2 0 1 5 1 0 TRANSACTIONS OF MATERIALS AND HEAT TREATMENT October 2 0 1 5 1 1

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  •  · Abstract In order to explore the dephosphorization mechanism in the sintering process of high-phosphorus oolitic hematite the kinetics of gasification dephosphorization of high-phosphorus iron ore were studied with heating rate at 10 15 and 20 ℃/min 2 O 3

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  • Dephosphorization Behavior of High-Phosphorus Oolitic

    Abstract. In this paper the process of direct reduction roasting using magnetic separation to produce direct reduction iron (DRI) from high-phosphorus oolitic hematite using coal slime and blast furnace dust as reductant is investigated.

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  • Dephosphorization Behavior of High-Phosphorus Oolitic

     · Dephosphorization Behavior of High-Phosphorus Oolitic Hematite-Solid Waste Containing Carbon Briquettes during the Process of Direct Reduction-Magnetic Separation Yunye Cao 1 2 Yiran Zhang 3 and Tichang Sun 2 1 Key Laboratory of Green

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  •  · Abstract In order to explore the dephosphorization mechanism in the sintering process of high-phosphorus oolitic hematite the kinetics of gasification dephosphorization of high-phosphorus iron ore were studied with heating rate at 10 15 and 20 ℃/min 2 O 3

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  • Synchronous Upgrading Iron and Phosphorus

    In this paper an effective method was developed to remove phosphorus and upgrade iron from high phosphorus oolitic hematite ore by high temperature flash reduction—a wet magnetic separation process. A thermodynamic analysis of iron and phosphorus mineral reactions and experiments with Fe-P separation process were performed and the mechanism of phosphorus removal and beneficiation of

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  • Dephosphorization of high-phosphorous manganese ores

    Mechanisms of phosphorus removal in the beneficiation of high phosphorous oolitic hematite ore by direct reduction roasting with dephosphorization agent were studied using XRD SEM and EPMA.

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  • Dephosphorization Treatment of High Phosphorus Oolitic

    Dephosphorization process of high phosphorus oolitic iron ore by acid leaching and leaching kinetics were investigated in the paper. The high phosphorus ore samples (51 T.Fe 0.52 P) used in this work were analysed by SEM-EDS and XRD which showed their oolitic structure and mineral phases.

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  • Dephosphorization of high phosphorus oolitic hematite by

    Effects of sodium salts on reduction roasting and Fe-P separation of high-phosphorus oolitic hematite ore were studied in the process of coal-based direct reduction followed by wet magnetic

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  • Study on dephosphorization mechanism by roasting iron

     ·  4 Zhu Deqing LI Jinghua DU Yongqiang et al. Study on mechanism of oolitic hematite reduction dephosphorization by magnetic separation J . Mining and metallurgy engineering 2014 34(05) 74-77 83. 5 Wang H. Study on high phosphorus oolitic hematite gasification and dephosphorization by sintering D .

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  • cqu.edu.cn

     · Abstract Experiments are carried out on high-phosphorus oolitic hematite in western Hubei using the method of reduction roasting and low intensity magnetic separation and Aspergillus niger is used to do the research of bioleaching dephosphorization

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  • Dephosphorization of high phosphorus oolitic hematite by

    Effects of sodium salts on reduction roasting and Fe-P separation of high-phosphorus oolitic hematite ore were studied in the process of coal-based direct reduction followed by wet magnetic

    Chat Online
  • Dephosphorization of high phosphorus oolitic hematite by

    Effects of sodium salts on reduction roasting and Fe-P separation of high-phosphorus oolitic hematite ore were studied in the process of coal-based direct reduction followed by wet magnetic

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  •  · Abstract Experiments are carried out on high-phosphorus oolitic hematite in western Hubei using the method of reduction roasting and low intensity magnetic separation and Aspergillus niger is used to do the research of bioleaching dephosphorization on concentrate.The orthogonal test results show that the descending order of factors influencing concentrate grade is calcinations temperature

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  •  · Abstract Experiments are carried out on high-phosphorus oolitic hematite in western Hubei using the method of reduction roasting and low intensity magnetic separation and Aspergillus niger is used to do the research of bioleaching dephosphorization on concentrate.The orthogonal test results show that the descending order of factors influencing concentrate grade is calcinations temperature

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  • Mechanism of phosphorus removal in beneficiation of

    Mechanisms of phosphorus removal in the beneficiation of high phosphorous oolitic hematite ore by direct reduction roasting with dephosphorization agent were studied using XRD SEM and EPMA.

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  • Mechanism of phosphorus removal in beneficiation of

    Mechanisms of phosphorus removal in the beneficiation of high phosphorous oolitic hematite ore by direct reduction roasting with dephosphorization agent were studied using XRD SEM and EPMA.

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  • Removal of Phosphorus from High Phosphorus Iron Ores

    In the process of resource utilization of high phosphorus iron ores phosphorus should be removed first. Compared to other dephosphorization methods selective leaching with acid has special advantages such as high dephosphorization ratio low iron loss and so on. However a large amount of acidic wastewater containing phosphorus was produced after acid leaching.

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  • New dephosphorizing agent for phosphorus removal from high

    In order to exploit high-phosphorus oolitic hematite Phosphorus removal in direct reduction roasting of the Ningxiang type high phosphorus oolitic hematite with iron content about 43.58 phosphorus content about 0.83 was studied.XRD and SEM were used to analyze the mechanism of direct reduction roasting and phosphorus removal.The results show that the direct reduction iron powder with an iron

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  •  · Abstract To study the isothermal reduction kinetics of high-phosphorus iron ore carbon-containing pellets at the temperature of 1 173 1 273 1 323 1 373 1 423 and 1 473 K. Several solid-state reaction mechanism functions i.e. interfacial chemical reaction model Jander equation Ginstling-Broushtein equation and G Valensi-R E Carter equation were used to fitting the reduction reaction

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  • Dephosphorization Behavior of High-Phosphorus Oolitic

     · Dephosphorization Behavior of High-Phosphorus Oolitic Hematite-Solid Waste Containing Carbon Briquettes during the Process of Direct Reduction-Magnetic Separation Yunye Cao 1 2 Yiran Zhang 3 and Tichang Sun 2 1 Key Laboratory of Green Process and Engineering Institute of Process Engineering

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  • USTB

     · The pilot study of high-phosphorus oolitic iron ore for iron recovery and dephosphorization by direct reduction-magnetic separation dephosphorization mechanism iron and phosphorus reduction kinetics. In order to provide parameters for the industrial test of

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  • Dephosphorization Behavior of High-Phosphorus Oolitic

     · Dephosphorization Behavior of High-Phosphorus Oolitic Hematite-Solid Waste Containing Carbon Briquettes during the Process of Direct Reduction-Magnetic Separation Yunye Cao 1 2 Yiran Zhang 3 and Tichang Sun 2 1 Key Laboratory of Green

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  •  ·  1 2 1 2 1 2 1 2 1. 550025 2. 550025 Intensive reduction of high phosphorus oolitic hematite by

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  • Dephosphorization of high phosphorus oolitic hematite by

     · In high phosphorus oolitic hematite phosphorus is mainly in the form of apatite where the particle size of the crystal is very fine and not easy to separate. Therefore the high phosphorus oolitic hematite is difficult to utilize as a raw material in ironmaking and is

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  •  · Abstract To study the isothermal reduction kinetics of high-phosphorus iron ore carbon-containing pellets at the temperature of 1 173 1 273 1 323 1 373 1 423 and 1 473 K. Several solid-state reaction mechanism functions i.e. interfacial chemical reaction model Jander equation Ginstling-Broushtein equation and G Valensi-R E Carter equation were used to fitting the reduction reaction

    Chat Online
  •  · Abstract In order to explore the dephosphorization mechanism in the sintering process of high-phosphorus oolitic hematite the kinetics of gasification dephosphorization of high-phosphorus iron ore were studied with heating rate at 10 15 and 20 ℃/min 2 O 3

    Chat Online
  • cqu.edu.cn

     · Abstract Experiments are carried out on high-phosphorus oolitic hematite in western Hubei using the method of reduction roasting and low intensity magnetic separation and Aspergillus niger is used to do the research of bioleaching dephosphorization

    Chat Online
  • cqu.edu.cn

     · Abstract Experiments are carried out on high-phosphorus oolitic hematite in western Hubei using the method of reduction roasting and low intensity magnetic separation and Aspergillus niger is used to do the research of bioleaching dephosphorization

    Chat Online
  • cqu.edu.cn

     · Abstract Experiments are carried out on high-phosphorus oolitic hematite in western Hubei using the method of reduction roasting and low intensity magnetic separation and Aspergillus niger is used to do the research of bioleaching dephosphorization

    Chat Online
  • Effect of coal levels during direct reduction roasting of

    The effect of coal levels on phosphorus removal from a high phosphorus oolitic hematite ore after direct reduction roasting have been investigated. Raw ore coal and a dephosphorization agent were mixed and the mixture was then roasted in a tunnel kiln. The roasted products were treated by two stages of grinding followed by magnetic separation.

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  • -.PDF

     · -.PDF 43 3 () Vol.43 No.3 2012 3 Journal of Central South University (Science and Technology) Mar. 2012

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  • Mechanism Study on the High-Phosphorus Hematite

    In the paper the research on raising the grade of iron ore and dephosphorization for high-phosphorus oolitic hematite by coal-based carbothermal reduction in microwave field was carried out. The microwave action mechanism was analyzed by the aspects of ionic crystal lattice energy and thermodynamics and dynamics 1 . The possibility of the application of microwave in raising the grade of iron

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  • Mechanism Study on the High-Phosphorus Hematite

    In the paper the research on raising the grade of iron ore and dephosphorization for high-phosphorus oolitic hematite by coal-based carbothermal reduction in microwave field was carried out. The microwave action mechanism was analyzed by the aspects of ionic crystal lattice energy and thermodynamics and dynamics 1 . The possibility of the application of microwave in raising the grade of iron

    Chat Online
  • Effect of coal levels during direct reduction roasting of

     · The effect of coal levels on phosphorus removal from a high phosphorus oolitic hematite ore after direct reduction roasting have been investigated. Raw ore coal and a dephosphorization agent were mixed and the mixture was then roasted in a tunnel kiln. The roasted products were treated by two stages of grinding followed by magnetic separation.

    Chat Online
  • Dephosphorization Technology of High Phosphorus Oolitic

     · Dephosphorization Technology of High Phosphorus Oolitic Hematite by Direct Reducing Process GAN Yu-dong 1 DUAN Dong-ping 2 HAN Hong-liang 2 1. College of Metallurgy and Energy Hebei United University Tangshan 063000 Hebei China 2. Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China

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  • Hematite Roasting Beneficiation Process

    ChinaDephosphorization mechanism in a roasting process for direct reduction of high-phosphorus oolitic hematite Research on the Combined Beneficiation Process for 7. View Details Send Enquiry hematite iron ore roasting for beneficiation. Siderite Iron Ore Beneficiation Price In IndonesiaBuy Siderite Ore beneficiation equipment.

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  • Dephosphorization Treatment of High Phosphorus Oolitic

    Dephosphorization process of high phosphorus oolitic iron ore by acid leaching and leaching kinetics were investigated in the paper. The high phosphorus ore samples (51 T.Fe 0.52 P) used in this work were analysed by SEM-EDS and XRD which showed their oolitic structure and mineral phases.

    Chat Online
  •  · Abstract In order to explore the dephosphorization mechanism in the sintering process of high-phosphorus oolitic hematite the kinetics of gasification dephosphorization of high-phosphorus iron ore were studied with heating rate at 10 15 and 20 ℃/min 2 O 3

    Chat Online
  • New dephosphorizing agent for phosphorus removal from

    In order to exploit high-phosphorus oolitic hematite Phosphorus removal in direct reduction roasting of the Ningxiang type high phosphorus oolitic hematite with iron content about 43.58 phosphorus content about 0.83 was studied.XRD and SEM were used to analyze the mechanism of direct reduction roasting and phosphorus removal.The results show that the direct reduction iron powder with an iron

    Chat Online
  • Mechanism Study on the High-Phosphorus Hematite

    In the paper the research on raising the grade of iron ore and dephosphorization for high-phosphorus oolitic hematite by coal-based carbothermal reduction in microwave field was carried out. The microwave action mechanism was analyzed by the aspects of ionic crystal lattice energy and thermodynamics and dynamics 1 . The possibility of the application of microwave in raising the grade of iron

    Chat Online
  • Dephosphorization Treatment of High Phosphorus Oolitic

    Dephosphorization process of high phosphorus oolitic iron ore by acid leaching and leaching kinetics were investigated in the paper. The high phosphorus ore samples (51 T.Fe 0.52 P) used in this work were analysed by SEM-EDS and XRD which showed their oolitic structure and mineral phases.

    Chat Online
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