Abstract The process mineralogy of vanadium titanium magnetite from Panzhihua Chengde and Chaoyang is studied and the value of the ore is calculated according to the spot price of iron concentrate titanium concentrate and the theoretical mineral processing index The results show that the grade of magnetic iron is % % and % the grade of TiO 2 is
The petrography analysis of the iron ore slime concentrates and the three different size fractions of iron ore slime concentrate 900 cm 2 /g 1470 cm 2 /g and 1800 cm 2 /g after grinding are shown in Fig 1e f respectively Phase analysis indicates that hematite and Goethite are the significant phases available in iron ore concentrates
The Bayan Obo iron ore concentrate and bentonite are ground below mm respectively and put into a WGL 30B electric thermostatic drying oven at K for 90 min hindering the chemical reaction of the iron oxide EDS analysis of the carbon element was performed on the pellet samples before reduction the limiting link of the
Sulfation roasting a common activation technique is a potential method for cleaner production of nickel from complex low grade ores In this study nickel oxide sulfide mixed ore concentrate was roasted with the addition of ammonium sulfate under a static air atmosphere and the roasted products were leached by water in order to evaluate the extraction of metals The ammonium
Maintaining the right moisture content throughout iron ore production is critical From filtering slurry to rolling ore concentrate—moisture levels must be constantly tested and regulated to ensure the best quality end product is achieved Iron ore is a type of mineral that when exposed to a reductant during heating produces metallic iron
Utilizing ultrafine iron ore concentrate for pellet production can expand domestic iron ore resources in China and promote the utilization of low grade ores However a challenge arises with the low decrepitation temperature and reducibility in the preparation process of ultrafine iron ore concentrate pellets To address the challenge a novel approach was
Typical Chemical Analysis Of Iron Ore Concentrate It can be found that 82 wt% of the iron ore concentrate is composed of magnetite and 11 wt% of hematite while SiO 2 MgO CaO and Al 2 O 3 are present as the main gangues in iron ore concentrate Total Fe agrees well with reported values in literature wt% [12] [27] [32
Characteristics of Iron Ore Concentrate and Fines Iron Ore Concentrate Iron ore concentrate is a processed product derived from iron ore It is composed primarily of iron oxides and contains a high percentage of iron typically between 63% and 70% The key characteristics of iron ore concentrate are 1
METHODS The flow diagram of the experiments is illustrated in Figure 1 The main materials used in this study were coal and iron ore concentrate The iron concentrate in the form of dry pellets is used as the feed The pellets which have 10 12 mm in size contained % Fetotal and were dried at room temperature for 24 hours
Canadian iron concentrate CIC can elevate the ferrous grade and lower the contents of gangue components and harmful elements in the sinter To understand high temperature characteristics of CIC and typical iron ore the formation of the melt was calculated mainly through FactSage and melt fluidity MF test for iron ore fines and penetration
From the plant operating results for this flow sheet an iron ore concentrate containing % Fe was produced from a run of mine ore containing % Fe at a mass yield to the iron ore concentrate of % an iron recovery of % and a tailings grade of % Fe
The actual separation experiments of − 6 mm iron ore indicated that the concentrate yield and grade of % and % X ray diffraction XRD and energy dispersive spectrometer EDS were combined to perform the mineralogical analysis of the typical iron ore The appropriate dense media for the dry separation of coarse iron ore
In this context to meet the stringent requirements to produce DR pellets the quality of iron ore concentrates must be rigorously controlled as well The typical chemical characteristics of an iron ore concentrate suitable for DR pellet production are outlined below Pfeiffer et al 2023 •
The chemical assays of the laterite samples are provided in Table 2 The nickel head grade of ores L I and S at <300 μm size fraction was found to be % % and % respectively concentrate and tail of ore S Several peaks are present in the concentrate spectrum but they are absent or show reduced intensity in the tail spectrum
To explore the reduction swelling process of pellets prepared from the Bayan Obo iron ore concentrate based on the iron oxide reduction theory of pellets the reduction of pellets prepared from the Bayan Obo iron ore concentrate was analyzed by thermogravimetric experiments and kinetic calculations in three stages The reason for the abnormal swelling of
Gasificating Dephosphorization During the Carbothermic 41 Fig 4 Typical SEM images and EDS maps of iron concentrate ore reduced with different carbon mixing ratio at 1050 °C for 60 min a 5 mass%; b 15 mass%; c 20 mass% mixing ratio of 5 mass% When it increases to 15 mass% and 20 mass% shown in
This is regarded as high grade iron ore and compares well with other iron ores from the main iron ore producing nations The silica and alumina contents of these ores are also below % and % respectively with correspondingly low levels of S <% and P <%
Fig 2 illustrates the iron ore beneficiation process particularly magnetic separation resulting in the generation of inevitable tailings Due to the characteristics of iron ores and the conditions during beneficiation it is inevitable that approximately 3 tons of IOTs are generated for every 1 ton of iron ore concentrate produced [7] In 2019 the global annual
Iron ore reduction using hydrogen instead of coal is a promising technology for minimizing CO 2 emissions in the metallurgical industry In this study the hydrogen reduction mechanism and kinetics of boron bearing iron concentrate were investigated in a fluidized bed at 650 ∼ 850 °C and the reduction data were quantified with an online gas composition analysis
Wear is a serious problem in the mining industry Slurry pipelines operate at relatively high pressure to move the pulp and undesirable leaks can eject tons of material in a short period of time causing environmental and economic losses [[5] [6] [7]] Regarding the hydraulic conveyance of iron ore pellet feed concentrate slurry the pipeline system must be
A Novel Process for Direct Reduction of Titanium Concentrate According to the analysis of the chemical composition of titanium concentrate it can be seen that the iron content in the titanium concentrate used in the experiment is relatively low only % TFe represents the total content of all valence Fe in the raw material TiO 2 content is % MgO and SiO 2 content are relatively high
