Siderite (FeCO 3) is one of the main ferrous-containing minerals in the Earth's crust that is involved in the global cycling of iron and carbon.A significant part of existing siderite was ...
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Siderite, also known as iron carbonate, is a mineral that is commonly found in sedimentary rocks such as limestone and shale. ... It is an important source of iron ore and can be used to produce pig iron and steel. It is also used as a flux in the smelting of iron and other metals. In addition, siderite is sometimes used as a decorative stone ...
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Effective utilization of low grade iron ore and low rank coal by excessive coal-based direct reduction process to coproduce DRI powder and semi-coke can be one of the solutions to cut the high ...
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This study showed that fluidization self-magnetization roasting, as a green, clean, and efficient magnetization roasting technology, could effectively recover …
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Abstract. In order to provide a better theoretical foundation for utilisation of Xinjiang siderite resources in China, its thermal decomposition behaviour was studied in neutral and oxidising atmospheres by employing thermodynamics analysis, chemical titration, thermogravimetric, and X-ray diffraction means.
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Siderite ore (FeCO3) is an important iron ore resource that is widely distributed around the world. However, it is difficult to process using conventional methods owing to the low iron grade, easy ...
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Ni-based catalysts play a fundamental role in catalytic CO2 methanation. In this study, the possibility of using siderite ore as a catalyst or catalytic support material for nickel-based catalysts was investigated, aiming at the exploitation of an abundant natural resource. The catalytic performance of Ni-based catalysts with reduced siderite ore as …
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The main provisions of regenerative siderite ore roasting in shaft furnaces are formulated, and the three-zone shaft furnace design proposed for implementing this …
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Based on the mechanism of thermal decomposition, the combination of metallurgy and processing is a promising method to process siderite ore. In this study, experiments on thermal decomposition ...
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In the present study, calcination properties of Hekimhan-Deveci siderite (FeCO3) ore and the effect of calcination process before the pelletization on strength of …
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Siderite ore (FeCO3) is an important iron ore resource that is widely distributed around the world. However, it is difficult to process using conventional methods owing to the low iron grade, easy ...
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Research was сarried out on a pilot plant on sintering of various size siderite ore and limonite taken in various ratios. To study impact of a number of process factors on the sintering process ...
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It is found that flash magnetizing roasting-magnetic separation process is a promising approach for the processing of oolitic hematite ore from western Hubei Province. ... Research on Flash Magnetizing Roasting-magnetic Separation of Siderite Ore from Daxigou[J]. Metal Mine, 2009, 10: 84–89. CAS Google Scholar
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Research was сarried out on a pilot plant on sintering of various size siderite ore and limonite taken in various ratios. To study impact of a number of process factors on the sintering process performance and the obtained agglomerate quality at the minimum number of the carried out experiments, one of the experiment planning methods was …
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As a result of the rise in global demand for pure copper, there is urgent need to consider the processing of low-grade chalcopyrite ores. Ammoniacal leaching solutions have been reported as an effective and efficient leachant for the dissolution of chalcopyrite. This work reports different parameters that influence the leaching kinetics of a Nigerian …
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It was the first time that the calcination process of the siderite ore was achieved by microwave by adding 30 wt% sucrose as a thermal auxiliary. The microwave conditions were determined as 900 W at 3 min. In 3 min, the temperature of the siderite ore increased up to 1100°C and 32.14% weight loss for the sample was achieved.
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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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Magnetization roasting is one of the most effective way of utilizing low-grade refractory iron ore. However, the reduction roasting of siderite (FeCO3) generates weakly magnetic wüstite, thus reducing iron recovery via weak magnetic separation. We systematically studied and proposed the fluidized preoxidation-low-temperature …
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The sliming properties of siderite contained in carbonate-bearing iron ore have an unavoidable, negative impact on the reverse flotation of hematite during the beneficiation process. This leads to the ineffective beneficiation of …
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The process of simultaneously roasting and magnetic separation was developed to treat the low grade siderite and hematite ores without adding any reductant. Effect of mass ratio of S-to-H (siderite ore to hematite ore) on the separation indexes of iron concentrate was discussed. X-ray diffraction was also employed to detect the phase ...
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Siderite forms as a sedimentary precipitate, in hydrothermal veins, in metamorphic rocks formed from such protoliths, and, rarely, in pegmatites. In sedimentary environments it forms in extensive beds of banded iron formations and as more localized deposits of bog-iron ore. It readily weathers to iron oxides. ASHLAND COUNTY: Siderite is a common …
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2.1 Materials. The siderite–hematite mixed iron ore used in this study was collected from Guizhou Province, China. The chemical composition, as measured by X-ray fluorescence (XRF), is presented in Table 1.The iron grade was 40.2%, which is higher than the average grade of iron ores in China (32% Fe) [].Iron, as the main element within the …
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Based on the mechanism of thermal decomposition, the combination of metallurgy and processing is a promising method to process siderite ore. In this study, …
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Magnetization roasting and low-intensity magnetic separation process. The siderite dosage is one of the most important factors during the magnetization roasting process. As there was some siderite in the refractory iron ore, the siderite content in this research referred to the total amount of siderite in the mixed sample. The experiment …
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Siderite is a brownish iron carbonate mineral that forms crystals, clusters and concretions. It is a common ore of iron and a gangue mineral in hydrothermal veins …
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A comprehensive overview of iron ore mining, beneficiation, and utilization. Learn about the different types of iron ore minerals, mining methods, and processing techniques, as …
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The industrial practice is to blend siderite with other high grade ores in the sinter plant (Chun et al., 2015, Ponomar et al., 2018, Sun et al., 2019, Zhu et al., 2020). During the sintering process as shown in Fig. 1, siderite is converted to hematite (Fe 2 O 3) in a rotary kiln under an air atmosphere according to Eq. (1).
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@article{Wang2022AnEP, title={An efficient process to upgrade siderite ore by pre oxidation-magnetization roasting-magnetic separation-acid leaching}, author={Dingzhen Wang and Jian Pan and De‐qing Zhu and Zheng-qi Guo and Cong-cong Yang and Zhuang Yuan}, journal={Journal of Materials Research and Technology}, …
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During the roasting process, siderite (FeCO3) transforms to magnetite (Fe3O4) along with producing carbon monoxide (CO), but hematite (Fe2O3) needs CO to reduce into magnetite. The process of simultaneously roasting and magnetic separation was developed to treat the low grade siderite and hematite ores without adding any …
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Mineral Processing and Extractive Metallurgy: Transactions of the Institutions of Mining and Metallurgy: Create email alert ... Lovás, M., Mockovčiaková, A., Jakabský, Š, . and Briančin, J. 2005. Modification of magnetic properties of siderite ore by microwave energy. Separation and Purification Technology. 43: 169–174. Crossref. …
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