Direct Reduction of Siderite Ore Combined with Catalytic CO/CO 2 Hydrogenation to Methane and Methanol A Technology Concept Sascha Kleiber1 Astrid Loder1 Mattha¨us Siebenhofer1 Andreas Bo¨hm2 and Susanne Lux1 DOI / This is an open access article under the terms of the Creative Commons Attribution License which
Magnetization roasting is one of the most effective way of utilizing low grade refractory iron ore However the reduction roasting of siderite FeCO 3 generates weakly magnetic wüstite thus reducing iron recovery via weak magnetic separation We systematically studied and proposed the fluidized preoxidation low temperature reduction magnetization
Semantic Scholar extracted view of "A clean and green technology for iron extraction from refractory siderite ore via fluidization self magnetization roasting" by Xiaolong Zhang et al ore FeCO3 is an important iron ore resource that is widely distributed around the world However it is difficult to process using conventional methods
Upgrading and utilizing low grade iron ore is of great practical importance to improve the strategic security of the iron ore resource supply In this study a thermal analysis infrared IR analysis in situ IR method was used to investigate the reaction mechanism and kinetics of Daxigou siderite Experiments were conducted using a conveyor bed
The beneficiation of Deveci siderite ore by calcination and reduction processes was investigated in this study Magnetic separation was applied to calcined and reduced ores respectively to
Analysis of the current technical solutions for the processing of iron ores showed that the high grade ores are directly exposed to metallurgical processing; by comparison low grade ores
The iron ore processing technology used in siderite concentrator are gravity separation and strong magnetic separation Different siderite has different iron ore processing methods The extraction of iron from single siderite with coarse grain size is suitable to be treated with single gravity separation single strong magnetic separation and
ing of a siderite ore and found that it reduced the CO dosage required in subsequent magnetization roasting and increased the iron recovery by 10% Although relevant studies have indicated that magnetization roasting is a feasible method for processing siderite ore the mechanism still needs further investigation Currently it is generally
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 Google
Siderite ore with high phosphorus content was reduced isothermally at 1 050° C with pulverized coal and different dosages of sodium carbonate X ray diffraction XRD scanning electron microscopy SEM and energy dispersive analysis of X rays EDAX were used to characterize the samples The influence of sodium carbonate on the carbothermic reduction
Siderite ore with high phosphorus content was reduced isothermally at 1 050° C with pulverized coal and differ ent dosages of sodium carbonate X ray diffraction XRD scanning electron microscopy SEM and energy metallurgical approach is an effective way to process siderite 6SHFLÀFDOO WKH ZHDN PDJQHWLF PLQHUDOV FDQ EH FRQYHUWHG LQWR
Siderite FeCO3 Siderite is a carbonate iron ore mineral that is typically brownish yellow to grayish white in color It often forms as a result of hydrothermal processes or weathering of other iron bearing minerals Mining and processing Iron ore is typically mined through open pit or underground mining methods depending on the depth
Siderite ore with high phosphorus content was reduced isothermally at 1 050° C with pulverized coal and differ ent dosages of sodium carbonate X ray diffraction XRD scanning electron microscopy SEM and energy metallurgical approach is an effective way to process siderite 6SHFLÀFDOO WKH ZHDN PDJQHWLF PLQHUDOV FDQ EH FRQYHUWHG LQWR
Magnetizing roasting of oolitic hematite ore from western Hubei Province was investigated The mechanism for reduction roasting of oolitic hematite ore was discussed and analyzed 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
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 Isothermal experiments were conducted to investigate the thermal
Dry processing of iron ore In dry processing of iron ore ROM is generally crushed below 40 mm through three stage crushing and thus segregated by screening into 10 40 and −10 mm fractions For softer ore tumbler index is generally low and hence lump ore is crushed below 10 mm to produce 100% fine product Yield from the plants has been
Iron ore processing has its root in hematite α Fe 2 O 3 maghemite γ Fe 2 O 3 magnetite Fe 3 O 4 goethite α FeOOH siderite Fe 2 CO 3 etc which can be prepared as nuggets for major feeds in the blast furnace as well as other conventional iron making processes
As a refractory iron resource siderite has gained significant attention in the fields of mineral processing and metallurgical industry due to its abundant availability However its direct utilization in iron and steel production is often hindered by the presence of impurities including silicates and carbonates as well as the lower theoretical iron grade so it is necessary
A creative method of using siderite FeCO 3 as a novel reductant for clean utilization of low grade refractory iron ore by magnetization roasting and low intensity magnetic separation technology was proposed To verify the applicability of this route typical refractory iron ore from Jiuquan Iron and Steel Co Ltd China was investigated Magnetic concentrate of iron
Analysis of the current technical solutions for the processing of iron ores showed that the high grade ores are directly exposed to metallurgical processing; by comparison low grade ores depending on the mineralogical and material composition are directed to beneficiation including gravitational magnetic and flotation processes or their combination
Malatya Hekimhan Deveci siderite ore was used as the material subjected to heat treatment in the study The chemical composition of the ore has been determined by X ray fluorescence XRF analysis and the results are as shown on the following table Table 1 The XRD pattern of the ore indicated that siderite is the main mineral; ankerite CaFe CO 3 2
The iron ore processing technology used in siderite concentrator are gravity separation and strong magnetic separation Different siderite has different iron ore processing methods The extraction of iron from single siderite with coarse grain size is suitable to be treated with single gravity separation single strong magnetic separation and
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
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