4.7 Article

Enhanced iron extraction from high-phosphorus waste limonite ore via suspension magnetization roasting: A pilot-scale study

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Engineering, Chemical

Fluidization magnetization roasting of limonite ore using H2 as a reductant: Phase transformation, structure evolution, and kinetics

Pengfei Liu et al.

Summary: In this study, the complex limonite ore, which is rich in iron, was processed using fluidization magnetization roasting and low-intensity magnetic separation. Under the optimized roasting conditions (temperature of 525 degrees C, roasting time of 10 min, H-2 concentration of 20%), a concentrate with an iron grade of 59.92% and iron recovery of 87.26% was obtained. The reduction mechanism and kinetics were analyzed using X-ray diffraction, vibrating sample magnetometry, and scanning electron microscopy. This research provides guidance for the utilization of limonite ore.

POWDER TECHNOLOGY (2023)

Article Engineering, Chemical

A new iron recovery and dephosphorization approach from high-phosphorus oolitic iron ore via oxidation roasting-gas-based reduction and magnetic separation process

Shichao Wu et al.

Summary: A new approach for simultaneous iron recovery and dephosphorization from high-phosphorus oolitic iron ore using oxidation roasting-gas-based reduction (ORGR) and magnetic separation process was developed. The mechanism was investigated using thermodynamic calculations, X-ray diffraction (XRD), and scanning electron microscopy combined with energy dispersive spectroscopy (SEM-EDS). The results showed high iron recovery rate and low phosphorus content in the reduced iron, making it ideal for steelmaking.

POWDER TECHNOLOGY (2023)

Article Engineering, Chemical

Pyrite as an efficient reductant for magnetization roasting and its efficacy in iron recovery from iron-bearing tailing

Hong Qin et al.

Summary: This paper investigates the issue of over-reduction of Fe2O3 in iron-bearing tailings during magnetization roasting and proposes the use of pyrite as a reductant. The experimental results show that the addition of pyrite during roasting process effectively hindered the over-reduction of Fe2O3 and promoted the formation of Fe3O4, resulting in a high iron recovery rate.

SEPARATION AND PURIFICATION TECHNOLOGY (2023)

Article Engineering, Multidisciplinary

Bending and shear improvements in 3D-printed core sandwich composites through modification of resin uptake in the skin/core interphase region

Dongyang Cao et al.

Summary: This study explored the application of FDM printed core materials in sandwich composites. The compression-molding process was used to improve the skin/core interphase, and a connection between in-plane and out-of-plane shear properties was established using DIC. The feasibility of 3D printed cores in composite sandwich structures was demonstrated.

COMPOSITES PART B-ENGINEERING (2023)

Article Automation & Control Systems

Enhanced buckling strength of the thin-walled continuous carbon fiber-reinforced thermoplastic composite through dual coaxial nozzles material extrusion process

Dongyang Cao

Summary: To address the weak bonding between the two deposited layers in 3D-printed parts, an additional polymer coating was added to the extruded filament using a self-designed concentric nozzle. The study found that adding carbon nanotubes at different concentrations in the polymer substrate filament enhanced the buckling loads of the 3D-printed polymer/continuous carbon fiber composite.

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY (2023)

Article Engineering, Chemical

Effective induction of magnetite on suspension magnetization roasting of hematite and reaction kinetics verification

Zhidong Tang et al.

Summary: This study reveals that the addition of magnetite in suspension magnetization roasting can enhance the reduction rate of hematite and improve its magnetic properties. The results provide valuable insights into the efficient and clean reduction of hematite using magnetite.

ADVANCED POWDER TECHNOLOGY (2022)

Article Chemistry, Physical

Exploration of hydrogen-based suspension magnetization roasting for refractory iron ore towards a carbon-neutral future: A pilot-scale study

Zhidong Tang et al.

Summary: In this study, hydrogen was used as a clean reducing agent for the magnetization roasting of refractory iron ores. The results showed that using hydrogen as the reductant achieved a high iron recovery rate and a concentrate with high iron grade. The study also analyzed the phase composition, magnetic characteristics, and micro-area element content of the ore. This research provides valuable insights for the efficient and clean utilization of refractory iron ores in achieving a carbon-neutral future.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2022)

Article Green & Sustainable Science & Technology

Magnetization roasting of waste iron ore beneficiation plant tailings using sawdust biomass; A novel approach to produce metallurgical grade pellets

Sachida Nanda Sahu et al.

Summary: Mineral-rich countries need to recover and recycle valuable minerals from industrial waste using biomass. In this study, sawdust biomass was used as a reductant in magnetization roasting to recover magnetite from iron ore beneficiation plant tailings. Compared to direct treatment with a wet high-intensity magnetic separator, this method produced higher quality concentrate suitable for downstream iron making processes.

JOURNAL OF CLEANER PRODUCTION (2022)

Article Engineering, Chemical

An efficient and green method to separate iron and manganese from ferromanganese ore by suspension magnetization roasting and magnetic separation

Pengfei Liu et al.

Summary: In this study, suspension magnetization roasting and low-intensity magnetic separation were used to process ferromanganese ore, resulting in the production of magnetic and nonmagnetic products with high-grade iron and manganese contents respectively. The analysis of the process mechanism showed that the treated products had enhanced magnetic properties and a rougher and more porous surface. This method provides a way for the recycling and utilization of ferromanganese ore.

POWDER TECHNOLOGY (2022)

Article Green & Sustainable Science & Technology

Gallium and germanium extraction and potential recovery from metallurgical slags

Vojtech Ettler et al.

Summary: Metallurgical slags enriched in Ga and Ge were investigated as potential sources of these elements. The partitioning of Ga and Ge in the slags was quantitatively determined using conventional mineralogical techniques and automated mineralogy. The highest extractability of Ga and Ge was found in 0.5 M H2SO4, indicating its potential for hydrometallurgical recovery.

JOURNAL OF CLEANER PRODUCTION (2022)

Article Engineering, Chemical

The mechanism of suspension reduction on Fe enrichment with low-grade carbonate-containing iron ore

Shuai Yuan et al.

Summary: An efficient suspension magnetizing roasting technology was proposed to extract iron minerals from carbonate-containing iron ore. A concentrate with 67.20% total Fe and 83.35% iron recovery was achieved under the optimal conditions. The phase transformation and microstructure evolution of the samples before and after roasting were characterized, revealing the selective transformation of iron mineral phases and effective enrichment through magnetic separation.

ADVANCED POWDER TECHNOLOGY (2022)

Article Chemistry, Physical

Kinetics and microstructural changes during fluidized reduction of magnetite with hydrogen at low temperatures

Peiyu Li et al.

Summary: This study investigates the low-temperature hydrogen reduction process of natural magnetite in a fluidized bed and characterizes the reduction kinetics, phase transformation, and micro-structure changes. The results show that magnetite can be reduced to metallic iron in one step within a certain temperature range, and the reaction rate increases with temperature. The one-step reduction of magnetite is controlled by the phase boundary reaction and has a low apparent activation energy. Microstructural analysis reveals the development of micropores and cracks on the particle surface during the reduction reaction, and the porous metallic iron that wraps around the dense magnetite core promotes hydrogen penetration and continued reaction.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2022)

Article Green & Sustainable Science & Technology

A novel and clean utilization of converter sludge by co-reduction roasting with high-phosphorus iron ore to produce powdery reduced iron

Shichao Wu et al.

Summary: This paper designed a co-reduction roasting followed by magnetic separation process to achieve the full recycling and clean utilization of converter sludge (CS) and upgrade high-phosphorus iron ore (HPIO), realizing the comprehensive and green utilization of CS.

JOURNAL OF CLEANER PRODUCTION (2022)

Article Engineering, Chemical

Improved iron recovery from low-grade iron ore by efficient suspension magnetization roasting and magnetic separation

Shuai Yuan et al.

Summary: Considering the decreasing reserves of high-grade iron ores, the utilization of low-grade iron ores is crucial to the steel industry. This study investigated the effects of reverse flotation and suspension magnetization roasting-magnetic separation on the Fe grade and recovery from low-grade iron ores. The results showed that the optimized suspension magnetization roasting-magnetic separation process significantly enhanced the Fe grade and recovery rate by reducing hematite to magnetite and forming cracks to accelerate the magnetization reaction in the iron ore.

MINERALS ENGINEERING (2022)

Article Engineering, Chemical

Whether magnetization roasting requires complete phase reconstruction of iron minerals: A study of phase transition and microstructure evolution

Qiang Zhang et al.

Summary: This research proposes a surface magnetization roasting technology that only requires partial reconstitution of hematite, reducing energy consumption and carbon emissions while achieving efficient iron recovery.

POWDER TECHNOLOGY (2022)

Proceedings Paper Materials Science, Multidisciplinary

Batch scale study on magnetizing roasting of low-grade iron ore tailings using fluidized bed roaster

Subhabrata Mishra et al.

Summary: The present study focused on the reduction roasting of a tailing iron ore sample to obtain a high-grade magnetite concentrate. The results showed that a 61.1-grade iron ore could be obtained with a residence time of 2 minutes, achieving 48.4% yield and 62.5% recovery.

MATERIALS TODAY-PROCEEDINGS (2022)

Article Engineering, Chemical

High-efficiency extraction of iron from early iron tailings via the suspension roasting-magnetic separation

Yanjun Li et al.

Summary: The high-efficiency extraction of iron from early iron tailings via the SRMS technology improved the porosity of the products and facilitated their grinding and separation. The recommended roasting conditions were temperature 600 degrees C, time 20 minutes, CO concentration 30%, and grinding fineness 55.32% passing 0.038 mm, with Fe grade in the concentrate at 67.09% and Fe recovery at 85.93%.

POWDER TECHNOLOGY (2021)

Article Green & Sustainable Science & Technology

Production of glass-ceramics from metallurgical slags

Wenxing Shang et al.

Summary: CMAS glass-ceramics, using metallurgical slags as raw materials, have potential for economic and environmental benefits. This study provided a systematic review of preparation methods, challenges, and solutions for utilizing metallurgical slags in producing CMAS glass-ceramics.

JOURNAL OF CLEANER PRODUCTION (2021)

Article Engineering, Chemical

Recycling iron from oolitic hematite via microwave fluidization roasting and magnetic separation

Wentao Zhou et al.

Summary: In this study, a clean and innovative microwave fluidization roasting method was developed to recover iron resources from oolitic hematite. The microwave pretreatment promoted the formation of microcracks at mineral interfaces, accelerating the reaction and phase transformation during magnetization roasting. The iron mineral phase was selectively transformed into strongly magnetic magnetite, and the iron mineral was effectively recycled from the roasted samples through magnetic separation.

MINERALS ENGINEERING (2021)

Article Mining & Mineral Processing

Mechanism for suspension magnetization roasting of iron ore using straw-type biomass reductant

Yue Cao et al.

Summary: Straw-type biomass serves as a promising alternative reductant in suspension roasting, leading to emission reduction and green utilization. Optimal conditions were determined, resulting in high iron grade and recovery rate. The transformation of hematite to magnetite was detected, and positive results were achieved in biomass gas regulation.

INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY (2021)

Article Construction & Building Technology

Effect of application of metallurgical slag powders on physical and rheological properties of asphalt

Noe Hernandez-Fernandez et al.

Summary: This study evaluated the effects of adding different types of slag on the properties of slag-modified asphalt, showing improvements in asphalt consistency and resistance to permanent deformation.

CONSTRUCTION AND BUILDING MATERIALS (2021)

Article Engineering, Environmental

Pilot-scale extraction of iron from flotation tailings via suspension magnetization roasting in a mixture of CO and H2 followed by magnetic separation

Zhidong Tang et al.

Summary: The study demonstrates that the efficient extraction of iron from flotation tailings through suspension magnetization roasting and magnetic separation is a promising way to reduce emissions and efficiently treat mining tailings.

RESOURCES CONSERVATION AND RECYCLING (2021)

Article Green & Sustainable Science & Technology

Iron recovery from refractory limonite ore using suspension magnetization roasting: A pilot-scale study

Yongsheng Sun et al.

JOURNAL OF CLEANER PRODUCTION (2020)

Article Green & Sustainable Science & Technology

Pyrolysis behavior of a green and clean reductant for suspension magnetization roasting

Qi Zhang et al.

JOURNAL OF CLEANER PRODUCTION (2020)

Article Engineering, Chemical

Clean utilization of high-iron red mud by suspension magnetization roasting

Xiao Liu et al.

MINERALS ENGINEERING (2020)

Article Chemistry, Physical

The study of asphaltene desorption from the iron surface with molecular dynamics method

Maboud Hekmatifar et al.

JOURNAL OF MOLECULAR LIQUIDS (2020)

Article Energy & Fuels

Behavior of Fe and P during reduction magnetic roasting-separation of phosphorus-rich oolitic hematite

Hanquan Zhang et al.

ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS (2019)

Article Engineering, Chemical

Selective vanadium extraction from vanadium bearing ferro-phosphorus via roasting and pressure hydrogen reduction

Guobin Zhang et al.

SEPARATION AND PURIFICATION TECHNOLOGY (2019)

Article Green & Sustainable Science & Technology

Green magnetization roasting technology for refractory iron ore using siderite as a reductant

Yongsheng Sun et al.

JOURNAL OF CLEANER PRODUCTION (2019)

Article Materials Science, Multidisciplinary

Phase transformation during roasting process and magnetic beneficiation of oolitic-iron ores

Tiefeng Peng et al.

VACUUM (2017)

Article Thermodynamics

Mineral transformations and textural evolution during roasting of bog iron ores

Grzegorz Rzepa et al.

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY (2016)

Article Automation & Control Systems

Hybrid intelligent control for optimal operation of shaft furnace roasting process

Tianyou Chai et al.

CONTROL ENGINEERING PRACTICE (2011)