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Optimization of Induration Cycle for Magnetite Concentrate
2020.10.26 In order to utilize the magnetite resources in a current induration furnace, which is designed for hematite resources, detailed pelletization studies have been carried out to optimize the firing cycle for magnetite concentrate as well as magnetite with
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Mechanism of magnetite iron ore concentrate morphology
2022.12.1 This study was performed to investigate the mechanism of the effect of the morphology of magnetite concentrate on the induration process and its effect on the
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Preparation of high-purity reduced iron powder by Höganäs ...
2023.11.4 Then, using the ultra-pure magnetite concentrate as raw material, high-purity reduced iron powder with Fe grade of 99.06% was prepared by Höganäs process,
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Mineral and Technological Features of
2021.3.24 Based on the obtained results by the investigation of the features of magnetite–hematite ores from the Mikhailovskoye deposit, a
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Producing magnetite concentrate via self-magnetization
2021.12.25 Abstract In this work, a green self-magnetization roasting technology for producing magnetite was proposed without adding additional. The regulatory
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Hydrogen Reduction Kinetics of Magnetite Concentrate
2012.10.18 A novel ironmaking technology is under development at the University of Utah. This technology produces iron directly from magnetite concentrate by gas-solid
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Mechanism of magnetite iron ore concentrate morphology
2022.12.1 Request PDF Mechanism of magnetite iron ore concentrate morphology affecting the pellet induration process The effect and mechanism of magnetite
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Preparation of reduced iron powder for powder metallurgy from magnetite ...
2021.11.1 Abstract The Höganäs method is considered the most effective method for producing reduced iron powder (RIP). However, this method does not remove impurities;
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Pelletization of hematite and synthesized magnetite concentrate from
2021.10.1 Reduced pellets after swelling index determination: Stereo micrographs of (a) synthesized magnetite, (b) hematite; optical micrographs of (c) synthesized
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Production of magnetite concentrate from iron
2011.6.14 process of recovering magnetite by magnetic . separation ... The highest grade magnetite concentrate with 79.88% Fe3O4 content with 65.42% recovery was obtained from -75 micron feed at 1000 gauss ...
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Preparation of reduced iron powder for powder metallurgy from magnetite ...
2021.11.1 The magnetite concentrate used in this study was collected from an ore dressing plant in China; its chemical composition is listed in Table 1.As can be seen from Table 1, the primary element was Fe, and the grade of iron was 64.86%, which is much lower than that of high-purity magnetite and iron scale.The predominant impurity was SiO
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Efficient Extraction of Vanadium from Vanadium–Titanium Magnetite ...
2018.1.15 In this paper, potassium salt roasting additives were applied to extract vanadium from vanadium–titanium magnetite concentrate. Meanwhile, the mechanisms of potassium salt roasting and acid leaching kinetics were investigated. The results indicate that potassium salt roasting additives are more efficient than sodium and calcium salt
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A Novel Pneumatic Planar Magnetic Separator for Magnetite
2020.8.27 The major impurity elements in the concentrate were silicon (10.2 wt %), aluminium (0.74 wt %), calcium (0.52 wt %), and phosphorus (0.08 wt %). After the two stages of CMS, the PMS recovered a magnetite concentrate with iron and silicon grades of 67.9 wt % and 6.01 wt %, respectively with no detection of aluminium, phosphorus, and
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Preparation of reduced iron powder for powder metallurgy from magnetite ...
2021.11.1 The magnetite concentrate used in this study was collected from an ore dressing plant in China; its chemical composition is listed in Table 1. As can be seen from Table 1, the primary element was Fe, and the grade of iron was 64.86%, which is much lower than that of high-purity magnetite and iron scale. ... In addition, the new process
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Full article: Production of M-type strontium hexaferrite
2022.7.27 The high-pure magnetite concentrate (HPMC) was studied for a substitution of iron scale to produce the magnetic powder of strontium hexaferrite via the conventional ceramic process in this work. The magnetic powder obtained under the optimum conditions had a magneto plumbite structure, which was confirmed by X-ray
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Preparation of blast furnace burdens by composite agglomeration process ...
2020.3.18 Effect of distribution of iron concentrates between pelletized and matrix feed on the preparation of blast furnace burdens from two different kinds of fine iron concentrates (magnetite and hematite) by composite agglomeration process (CAP) was explored. It was found that when the mass ratio of iron concentrate A (magnetite) to iron
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Mining – Karara Mining
2023.11.13 Karara comprises a large-scale, long-life magnetite orebody amenable to bulk mining and processing. Magnetite ore has lower iron content (34-36% Fe) than hematite ore (58-64% Fe). It must be upgraded by a complex ore treatment process (beneficiation) to produce a high-grade (+65% Fe) concentrate for steelmaking.
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印尼典型海砂矿的工艺矿物学及固态还原特性 - USTB
2020.4.20 摘要: 以经典工艺矿物学研究方法为基础,结合化学物相分析、矿物解离分析 (MLA)、X射线衍射、光学显微镜、扫描电镜-X射线能谱仪 (SEM-EDS)等手段对印尼典型海砂矿的矿物学及其固态还原特征进行了系统研究。. 结果表明:印尼海砂矿的矿物组成主要
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Mineralization characteristics of pellets prepared by ultrafine ...
2022.10.25 The reducing property of pellets prepared by ultrafine magnetite concentrate (UMC) and improving method were revealed. The results show that the reduction degree of UMC pellets is only about 56% compared with that of pellets prepared from ordinary iron ore concentrate with relatively coarse particle size, which is
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孙虎 直聘研究员-郑州大学化工学院
2022.7.28 Vanadium recovery from Na2SO4-added V-Ti magnetite concentrate via grate-kiln process[J]. Transactions of Nonferrous Metals Society of China, 2022, 32(6): 2019-2032. (中科院二区) 所获荣誉: 中南大学优秀毕业生 中南大学研究生校长奖学金拔尖奖
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Mineral and Technological Features of
2021.3.24 content ranges from 50.69 to 51.88%; bivalent iron is present in small quantities—the FeO content in the samples ranges from 3.53 to 4.16%. The content of magnetic iron is 11.40–12.67%. Based on
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High-Efficiency Extraction of Fe, V, and Ti from Vanadium
2022.2.1 Vanadium-containing titanium magnetite is the main source of V and Ti in the internal market. About 75% Fe, 82% V, and 44% Ti pass into iron concentrate during ore enrichment [].Therefore, the question of how to improve comprehensive utilization of vanadium-titanium magnetite concentrate (VTMC) is of decisive importance for the
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Effect of high-pressure grinding rolls pretreatment on the
2023.3.1 1. Introduction. Vanadium-titanium magnetite (VTM) is considered as an important strategic mineral, which associated a variety of metal minerals with high comprehensive utilization value [1].The smelting methods of VTM mainly include blast furnace process and coal-based rotary kiln process at present [2, 3].As one of the main
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Pelletization of hematite and synthesized magnetite concentrate from
2021.10.1 The size analyses of both the pellet feed concentrates were determined by the Malvern particle size analyzer (Hydro 2000MU, UK) and are shown in Fig. 1.It is observed that 80% of the particles (d 80) of hematite and synthesized magnetite concentrates have the sizes of 65 µm and 75 µm, respectively.Similarly, the d 90 values
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Investigations on the Barium-Bearing Magnetite Concentrate
2022.2.14 To expand the application of barium-bearing magnetite in pellets, the oxidation induration mechanism for barium-bearing magnetite concentrate pellets with the BaSO4 contents from 0 to 8wt pct as an additive was investigated in this paper. The green pellets were preheated at 900 °C for 10min and roasted at 1200 °C for 20min.The XRD,
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Mechanisms in oxidation and sintering of magnetite iron ore
2008.4.9 Magnetite iron ore pellets are produced by agglomerating moist, finely ground magnetite concentrate together with a binder in balling drums or balling discs to pellets, typically between 9 and 15 mm in diameter. In the Grate Kiln pelletizing process, the wet green pellets are loaded on a travelling grate with a bed height of 23 cm.
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Kinetics and mechanism of coal-based direct reduction of
2022.10.5 The research involves the effects of carbon distribution, reduction temperature, reduction time, reduction atmosphere, raw material particle size, and pellet size on the direct reduction characteristics of vanadium–titanium magnetite concentrate. The process parameters of direct reduction of coal-based pellets are optimized under
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Application of multi-stage dynamic magnetizing roasting
2022.7.1 The parameters of production process are as follows: iron grade of roasted ore and concentrate are 38.26% and 58.05%, respectively; conversion rate and iron recovery are 91.88% and 86.29%, respectively; feed size is 0–12 mm; grinding size (–0.074 mm) is 87.52%; Average daily throughput is 336 tons; coal blending is 2.0%; magnetic
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Gas-based reduction of vanadium titano-magnetite
2017.8.28 ported that titano-magnetite was reduced to iron and tita-nium oxides after the reduction process under an atmosphere consisting of a CO–CO2–Ar gas mixture. Sun et al. [21] proposed a reduction path for titano-magnetite concentrate by H2–Ar gas. Tang [22] investigated the reduction mechan-ism of high-chromium vanadium-titanium magnetite ...
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A Novel Process for Preparing High-Strength Pellets of Ilmenite Concentrate
2022.2.24 In the present study, a novel process to prepare high-strength pellets of high-calcium, high-magnesium ilmenite concentrate was investigated. Magnetite concentrate and bentonite were selected as the additive and binder of the pellet, respectively. The effects of the magnetite concentrate content, bentonite content, and roasting temperature on the
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